G80 locker problems. There must be at least 0.

G80 locker problems Feb 1, 2017 · Most G80 failures are a result of worn out clutches or a broken governor assembly. The Locker. Jun 20, 2012 · 3. ALL G80 in trucks is a locker. Notice, no small windows to see inside the carrier. Thats what I thought might have happened to mine and why I started this thread in the first place. 0″ rear end Trailvoy’s don’t have that option. Jun 20, 2022 · Possible Solutions to G80 Locking Differential Problems. 32mm (0. Apparently my locker didn't engage. The "G80" LSD for your truck is very different than the G80 for a new truck. I'm trying to figure out if the G80 locker is bad. I used this last time. 6" axle and drop a quick lock in, or get an auburn or any other LS carrier for street-friendliness. Here are they: Change The Lubricant. There must be at least 0. Apr 27, 2015 · Known as the MLocker in the American-Irish corporation's vernacular, the G80 locking diff rolled out in the 1970s. A term used back in the muscle car era to mean a limited slip differential. HD Locker Repair/Upgrade Heavy-duty Eaton Detroit Truetrac a strong fix for failed GM 2500HD OEM G80 locker . 0-LT Trim Retired ASE Master Tech & ASE Service Writer Vietnam Vet, American Legion & VFW Member Off road Eaton g80 locker failure explained and diagnosed. So, when you're cruising along on clean dry pavement, the locker operates like any regular open differential. Jan 6, 2024 · Now here is the problem ever since I bought this truck 4 years ago I have gotten stuck everywhere when it snowed, the G80 locker is not functioning correctly as a locker. I did drive it a little in the snow a week ago and it did lock a couple of times while climbing my inclined driveway but no problems until Nov 12, 2022 · G80 Locking Differential Problems. Problem is this: drives fine going straight no noises or whining, but when you turn fairly sharp the differential is still locked like it has a spool in it. I have used this in all my trucks for many years and currently in my 2021 GMC Severe Gear 75W-90 This is from GM; ¨ Optional Equipment (G80 Order Code) on all GM two-wheel and four-wheel drive light trucks and sport utilities. Luckily, however, I have had no issues or problems (or sadly mods ) to comment about so, eh. 5 and a locking rear diff. Jun 20, 2022 · G80: Manufacturer Eaton Eaton: Items weight: 25 pounds: 20 pounds (approx. Jan 14, 2009 · Hey guys, so i have a 2002 Trailblazer 4wd that has the 3. The 14 bolt locker is a lot stronger than the 10 bolt locker. Feb 26, 2013 · LOCKING DIFFERENTIAL LUBRICANT (SERVICE INFORMATION) #91-4-109 SUBJECT: LOCKING DIFFERENTIAL (G80) LUBRICANT - (SERVICE INFORMATION) VEHICLES AFFECTED: ALL LIGHT TRUCKS EQUIPPED WITH G80 REAR AXLE ALL YEARS Some light duty trucks equipped with locking rear axles (G80) may exhibit rear axle chatter, especially when turning a corner from a stop. I asked her to check a VIN from another 3500 van with a 9. In this article we’ll go over how to remove, disassemble and rebuild your G80. 5r17 Baja claws-Straight pipes-4-HI mod-Tinted tails-Auburn LSD/4. The G80 is not a bad unit, there are just better options IMHO Feb 6, 2016 · The rear end has an Eaton G80 locking diff that starting to act up. 10 gears-G80 locker-MT1 4L80E-6. It works very well, but I doubt it will fit in your case. All light duty trucks equipped with RPO G80 make use of a Eaton locking differential. It is easy to test your G80 locker if you take it step-wise. 57mm (0. To the OP I have seen where several folks have claimed to have made the E-locker upgrade. There is a lot of trash talk on the G80. 10 bolt Gov locks are also known as "Gov- Bombs". R. My G80 had to give it some wheel spin before it would lock up. Its been snowing here in MA lately so I took it to a parking lot to "test things out". The G80 locker, also known as a locking differential, is a type of differential that provides equal torque to both wheels when one loses traction. There are 75/90 syns out there with no additive, a little hard to locate though. As others posted the Eaton Auto-Locker, aka G80, is a locker. However, I would prefer a selectable rear locker. Truck has 172,000 miles and probably has never had the diff oil changed, I bought it used 1 year ago. The "free" wheel can gain to much RPM to fast and out run the locker causing to lock at much higher wheel speed than designed to. Oct 23, 2022 · If you’re having problems with your G80 locking differential, there are a few things you can do to try and fix the issue. Over size tires and modified trucks will stress oem components. Sep 16, 2005 · I have an 02 2500HD LT Crew Cab long box with the 6. And the Eaton "Gov-Loc" G80 unit is not really designed as a street-performance Sep 7, 2019 · Case in point: 2018 Camaro G80 Differential, limited slip 2018 Silverado G80 Differential, heavy-duty locking rear 2018 GMC Yukon / Denali G80 Differential, heavy-duty locking rear 2018 RPO Codes - Cadillac Escalade G80 Differential, heavy-duty locking rear Feb 15, 2015 · 99 Silverado RCLB 4. Oct 26, 2008 · However, GM uses the RPO "G80" in many different cars/trucks, and it will not be the same unit as in these trucks. 6 out of a ZR2 s10, they have the G80 in 'em too but you can get an open carrier out of a 1500's 8. So here's my problem. Sounds to me like your G80 is on the way out. Change the gear lube and see if the problem improves or goes away. If the other rear wheel turns in the other direction, the car has a G80 locker. I def want to go with a locker and have been thinking of going with a Detroit locker, a true locker not the tru trak. No harm, no foul I imagine. And wife navigates snow covered semi rural roads and town streets in winter snow. Feb 24, 2012 · Let's make sure you have the G80 first, and then go from there. If there is a problem, you should see broken parts or shavings in the fluid. That is, it reacts to wheel slip by sensing when one wheel is spinning substantially faster than the other. 5's put up with some pretty good power, but yeah if you're gonna pound on it, don't even bother with trying to modify the gov lock, just weld it up or yank it - or get an 8. That's what a dealer is likely to do first. Yes, the G80 diff does fail after a while, and when it does, you will experience quite many unusual difficulties while driving. The Gov-lock that you linked to is a bit misunderstood. It is the G80 unit limited slip, posi trac. 42 ratio that I already have. Its happened to me twice, and driving straight fixed it. Look for "G80". Entering in an obstacle with the rear already locked up is beneficial versus waiting till a tire spins enough to engage the G80. It uses a mechanical locking mechanism to ensure that both wheels receive the same amount of torque, which allows for better traction and stability. LS additive causes problems with the G80 clutch plates. How they apply that will vary among the various models. ) Locker type: Helical gear and automatic limited-slip C-clip type locker. Joined Sep 29, 2019 · 431 Posts #21 · Jan 10, 2020. Spin one wheel fast in either direction, and if the G80 is working properly you will feel a solid clunk and the wheel will throw your hand back. Design Friction-based, parallel pinion and ring gears, and rebuild design. Lots of useful info. Do the G80 lockers come in any other ratio axles than the 3. Jump to Latest 4. When mine locks it sounds like a gunshot, you hear a big thud and start to look around thinking WTF was that. Easily identified by 3 sets of 2 bolts that hold the carrier together. The speedo read up to about 20 mph as I spun to a stop and had to engage 4WD. What’s more, 4WD is not LOCKING DIFFERENTIAL LUBRICANT (SERVICE INFORMATION) #91-4-109 SUBJECT: LOCKING DIFFERENTIAL (G80) LUBRICANT - (SERVICE INFORMATION) VEHICLES AFFECTED: ALL LIGHT TRUCKS EQUIPPED WITH G80 REAR AXLE ALL YEARS Some light duty trucks equipped with locking rear axles (G80) may exhibit rear axle chatter, especially when turning a corner from a stop. Apr 7, 2020 · Yep. May 22, 2022 · G80 Locking Differential. It is a mechanical type of locker and behaves as an automatic locking differential in most cases. I'm not sure how much you know about them, but they're a centrifugal locker, they require a large speed differential between the two tires to throw out the pawl and lock it up. One problem with that all the trucks at the junkyard have 3. Posi is a term used for Posi-Traction. It's not locking sometimes and sticking others. This past winter was pretty bad here in Minnesota and my 2WD with open diff got stuck twice (in the alley behind my house no less). Feb 26, 2012 · 2004 RCSB burgandy z71-35x12. Jul 18, 2021 · The locker pictured in the page is a GM 10 bolt locker. Mar 19, 2006 · G80 Locker problem. Jan 7, 2011 · Mine had 170k (04 Avalanche) and it just wore out, did not break. Mar 26, 2008 · Fyi-The G80 is a Eaton Locker and is not a posi. They're specifically designed not to. Be carefull not to jump the truck off the jack and through the garage door. G80 Locking Rear Differential Problems: A Quick Overview Aug 29, 2010 · G80 Locking Differential Eaton Gov-Lok This is a pic of a G80 Gov-Lok Carrier for 14b Full Float Axle removed from the axle housing. My rear locking differential was not working and I diag Chevy Silverado 2500 4x4 Rear End Failure. Using an inert fluid that does not change the layout may help you avoid the G80 locking differential problems. They look a lot different than the one in your trucks 14 bolt because all the workings are covered up with metal and internal. 5 that won't accept the Eaton Mlocker (G80). Dec 17, 2008 · G80 Differential Information I am replacing my failed G80 unit today with a Detroit TrueTrac unit. 0126”), Service C-locks may still be installed, however, if the Apr 27, 2015 · General Motors offers the Eaton G80 automatic locking rear differential on all its body-on-frame SUVs and trucks – either as standard equipment or as an optional extra. First, check the fluid level and make sure it’s full. Jan 15, 2011 · Better test of the G80 -- jack up one wheel, put it in gear at idle, then let off the brake. I have a 99 2 door hoe with differential problems. I inadvertantly damaged my factory unit while crossing a ditch along a county road. The Locker makes towing large boats and campers a breeze. It is pretty good to choose a G80 locking differential to drive over the deep snow. I have put over 20,000 KM on the truck in the past few years, may of them highway and rear end seems fine with no noises or other issues. I never had issues with my g80 locking up in parking lots or in city driving. Regalguy80 · Registered. 25mm (0. Pulling the cover and doing a visual inspection should show the problem. Benefits Feb 15, 2023 · Then, you kick it back suddenly. 73 or am I running into bad luck at the Oct 31, 2012 · All I know for sure is I have heard similar complaints for years and years with GM cars and truck with G80 lockers and G80 posi limited slip differentials and 99% of the problems are corrected with a better gear lube. Most G80 failures are a result of worn out clutches or a broken governor assembly. One easy test is to take the rear cover off the diff, and see how things look. 11 Yukon Gears, G80 Locker TB Crank+Skyjacker AAL 285/75R16 Cooper STT's Pro Comp ES3000 shocks Full Skidz. Open the glove box, and you should see a bunch of codes. When I called Eaton, they told me that the Mlocker is a dealer only item. We have Dec 6, 2014 · Both wheels jacked up, one will spin one way and the other in a different direction. 6's and 7. This can damage the locker. Dec 7, 2021 · GMC Canyon diagonal test - G80 diff locker test - YouTube * 2017 GMC Canyon Denali CCLB 4x4 ** 2. Lots of time what also causes problems is people do not know the difference between a locker and a limited slip differential. Erratic Locking and Unlocking Feb 23, 2009 · I've seen those 7. It is basically an on-demand locker that uses a light coil that mechanically signals the clutches to lock up. Save Share Mar 6, 2020 · On my 3rd Colorado 2WD [ ALL with the G80 Locker] since 2005 and live in the upper midwest snow belt. Jump to Latest 21 - 40 of 49 Posts. Apr 8, 2023 · The G80 Locker. The first time I ever changed any rear axle lube was in my 1977 Monte Carlo G80 and that was to put synthetic in it. Dec 31, 2006 · G80 is the RPO that is assigned to any of the GM limited slip or locking diffs. This automatic unit, available for rear drive and 4-wheel drive vehicles, makes traction problems a thing of the past. 10's,14bsf with g80,6inch procomp lift,315/75r16 bfg mt's,9k winch,cut outs ,locked D60 and D70 on the way that might be a problem Oct 13, 2012 · Earlier in the week, I had the rear diff (G80 auto locking) lock the axles together when I pulled into the parking lot at work. But if you want to off road a lot or put bigger tires or do burnouts them I would not recommend the g80. What you are experiencing is definitely uncommon. 73 Gear Ratio, G80 Locker 231,345 Miles; Original Owner The Insanity Project My other projects: The G80 had no problem in any of the drifts. With that said, probably 98% of truck buyers don't need a rear locker period. Most other platforms simply ditch their G80’s in favor of something stronger. 1 2 3. How a Eaton G80 locker works Nov 26, 2019 · If it is a g80 locker change it to something with NO LS additive. Jun 5, 2013 · The G80 does NOT like it if you get on it hard with one wheel on pavement and one on ice. I was crusing around with my friends afew nights ago and i came to the bottom of a hill with a 3 way intersection, you came down the hill, stopped and could either turn left or right depending where you wanted to go. 73 Gears with possible G80 Locker 31" Tires . Jun 8, 2017 · The Eaton Detroit Truetrac Locker is a lot stronger than the G80 AKA grenade at 80k I guess I should explain a little better, the G80 has weights that spring out to lock the diff( at speed) The truetrac locks gradually. See full list on vehiclefreak. The new one has a clutch pack, but it's really a locker at low speeds. Unfortunately, us 8. Jul 12, 2017 · OK, so I'm hitting a wall trying to locate the G80 parts. Building on the success of the Posi differential, the MLocker was available as an Dec 9, 2003 · Well - surprise - there's a solution. Important: Installing any friction modifier causes the clutch pack in the locking differential to slip and miss engagement. However, though it performs well through any rough surface, it can also cause some unknown sudden problems in your day-to-day life. 73 and the G80 Rear Locker Options. If it is, then you may need to have the system flushed and refilled. Yesterday I noticed after climing a grassy hill that I left a single spin mark/track up the hill. . Apr 23, 2023 · If you put the additive in the G80 locker you are going to have problems. Push a pickup hard enough, even a heavy-duty model Aug 11, 2011 · I have read on a couple Chevy truck forums that this isn't anything to worry about with the G80 locker. If you keep turning, it registers as different wheel speeds and stays locked. Let's just say I had some things to take care of and unfortunately constantly being online was just not in the cards. Since then, I have used synthetic in all my vehciles (99% Jan 31, 2009 · the g80 is notorious for failures. • If endplay is below 0. A limited slip differentials is normally installed in cars. find a different differential, like the detroit true trac, and have one of them installed. The lady at a Chevy dealer parts counter told me I have a 9. Also, drive muddy, sometimes rocky, snow covered forest roads a few times a year. Now that I have the Truetrac I like it better, there is no wheel spin in order to engage. 3 4x4 for a long time, but I want the 3. Jul 30, 2008 · G80 locker problems Jump to Latest 7K views 6 replies 5 participants last post by neelskit Jul 31, 2008 Dec 7, 2018 · G80 is the order code, and has been for decades. Jan 9, 2020 · G80 locker problem. You could feel the truck shudder while turning sharply and hear the inside tire slipping on the wet pavement. 88s-3" body lift-soon to be nv3500 trans – EXCEPTION – If it is a G80 Locking Rear Axle, a C-lock can only be applied on the left hand side if it measures 0. Nov 18, 2014 · My 95 had 158k when I sold it and my 2001 has 109k now and the g80 still works great. Nov 4, 2008 · I have been wanting to do a disc and G80 swap into my 1996 Chevy Extended cab 4. I myself love the G80. In GM-speak, "G80" simply refers to the option for a traction-aiding rear differential. But work exactly the same way. If I stomp on it around a turn on a wet road the truck will get sideways or if I mash the pedal in the snow the rear end will kick out as well. I'm looking at having it replaced and am trying to figure out what to put in. Jan 23, 2014 · 3. A limited slip slips and will not apply full/100% of the engines power to the 1 wheel that has traction. Mar 23, 2009 · We'll start by pointing out that the Locker is a speed sensitive design. May 13, 2018 · This is more for those of us in the northern world, but I would be interested to hear from anyone with a 2WD and the G80 Locking differential concerning how it performs in snowy and icy conditions. So that's my opinion. 0224) endplay or higher. You'll need to figure out what's wrong with your G80 so you can have the appropriate parts on hand. The Eaton G80 Locking Rear Differential. Now it’s time to look at possible solutions to overcome those issues with your G80 locking differential. A fluid flush can often remove debris that is a contributor to clutch chatter. 8,NV4500,4. they're much stronger and more functional. Jan 3, 2013 · ProPickup How-To. Some GM trucks don't have the locking rear diff. By Tom Jackson. How To Test Your G80 Differential And Locker? At times, the efficiency of your car’s G80 differential and locker needs a test. 73 ratios that have the locker. Here are the common G80 locking differential problems! 1. 0 V-8, 4-speed auto, and the locking rear differential (Eaton G80). Jan 1, 2020 · A fluid flush can often solve G80 noise and/or problems. If the G80 works, the wheel should start to spin, then lock up. The Eaton G80 uses clutch disc and that is what wear out in the unit. A locker will. Mar 7, 2015 · First, let me just apologize for my extended hiatus. Joined Feb 9, 2013 Posts 2,858 Reaction score 224 Location tx First Name Jun 16, 2012 · They are made by Eaton Gear and Eaton has been making GM G80 Posi-traction for decades and well as the G80 locker for the trucks. Evidently my locking mechanism attempted to lock while the wheel that had lost traction was spinning over 100 RPM and it became permanently locked. Only show this user It's also nice that it is a true locking diff and not a limited slip. I have had GM G80 axle's dating back to my first new car, a 1966 Impala SS 396. Its like a limited slip that is open until excessive wheel slip triggers it to apply the clutches. Off road Eaton g80 locker failure Dec 16, 2008 · I'm new to the site and love it. I'd go with either a Detroit trutrac for a posi or a Detroit locker for a locking diff. Dec 14, 2024 · 2004 Silverado K2500HD Crew Cab Short Bed 4. The use of any additive in locking Aug 13, 2004 · That quote comes right from GM technical service bulletion dealing with G80 axle problems. Jun 4, 2014 #2 350runner Full Access Member. Your stock LSD had a clutch pack, and was not a locker. 8L Duramax (GDE tuned), RevMax TC, Improved Racing trans t-stat, CX Racing trans cooler, Rokblokz mud flaps, ARE Z-Series shell, DD SS3 Pro amber fogs Dec 23, 2009 · Hey guys, I just bought an 07 Colorado z71 with 40k on it. 5L I5, 3. com Mar 7, 2015 · Once the G80 locks up, it tends to stay locked until you drive or back-up in a straight line. 010”) of endplay on left had side to not damage locker. tbpho bibv evdmlx bzowg jkb iozub voluxce qquwjg enommhl niaos