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  1. The G80 good or bad? - GM Truck Club Forum

    Dec 5, 2012 · Doing a little reading, and there are a lot of people that slam on the G80 saying that they explode all the time. I had a G80 in the 1998 W/T, my 2008 Silverado, and now in my …

  2. G80 Heavy Duty Differential Option - Locker - GM Truck Club Forum

    Nov 25, 2007 · Eaton G80 Locking Rear Differential – as used in the new Chevy/GMC pickups with the G80 heavy duty rear differential option. Drive axle, rear axle, differential: they are all …

  3. G80 locker upgrade - what rear diff do I have? | GM Truck Club …

    Jul 12, 2017 · I just purchased a 2016 Express 3500, and I'd like to add the factory Eaton locker. So far the dealerships I've contacted have been unable to tell me what differential I have. All …

  4. Differential lube for a G80 - GM Truck Club Forum

    Nov 18, 2015 · Rear Axle Additives are Designed for use in Limited Slip Differentials which are Normally Installed in Cars. "All Light Duty Trucks Equipped with RPO G80 Make Use of a …

  5. Rear end swap questions - GM Truck Club Forum

    Jan 23, 2019 · The old G80's were traditional Eaton limited slips A traditional limited slip differential uses clutches that release a wheel once a certain torque has been reached.

  6. G80 RPO Code - GM Truck Club Forum

    Nov 4, 2010 · The optional locking differential (RPO G80) enhances the traction capability of the rear axle by combining the characteristics of a limited-slip differential and the ability of the axle …

  7. What size is my differential? - S-10 Forum

    Jun 28, 2021 · Howdy folks, I am trying to change the fluid in my differential. 'G80' is present in the glove compartment codes, meaning that I have a G80 differential. Attached here is my rear …

  8. STILL confused about differential...stuff - GM Truck Club Forum

    Feb 24, 2015 · Some Light Duty Trucks equipped with Locking Rear Axles (G80) may Exhibit Rear Axle Chatter, especially when turning a corner from a stop. This Condition of Alternate …

  9. G80 Locking Differential - GMC Truck Forum

    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 …

  10. rear diff fluid - GMC Truck Forum

    Dec 12, 2009 · Rear axle additives are designed for use in limited slip differentials which are normally installed in cars. All light duty trucks equipped with RPO G80 make use of a locking …