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differential

  1. Gen1 - 3.73 Ring/Pinon & OEM "Limited Slip" Differential (AZ) -$300

    For Sale
    I pulled my OEM Limited Slip differential and 3.73 gears from my 2007 Colorado, in favor of a 4.10 /G80 set-up. The truck/gears had approximately 20,000mi at the time of the replacement and the gears/differential has been store in my garage since. The differential is in excellent condition with...
  2. For Sale FS: Low Mileage 3.73 Limited Slip Differential

    For Sale
    Hey guys, I sold my '07 Colorado a few years ago now, and still have the original 3.73 open differential in a box in my garage. I pulled this out when I upgraded to a 4.10 g80 locker setup. This differential has about 20,000 miles or so on it, IIRC. I would prefer a local pickup. Right now I...
  3. CV Axle seals installed "too far in"?

    I4/I5 Engine & Drivetrain
    Hey guys. So I've finished changing both front axle seals myself, but I wonder if can they be hammered "too far in"? I think I got a little over-aggressive hammering them in to the point of possibly deforming the metal ring on the backside of the seal itself, and/or damaging the...
  4. New front axle seal, still leaks. What did I do wrong?

    I4/I5 Engine & Drivetrain
    Hey guys, new member. First post. I got a 2009 Colorado LT, Ext.Cab, 4x4, 2.9 4-cyl, automatic, 76k miles, original owner, Inferno Orange. Last weekend, I changed the passenger front diff axle seal because a oily residue had formed around the base of the CV axle and a local shop told me it was...
  5. Wrong Rear Differential ????

    Engines/Performance/Tech Questions
    I ran into quite a a mess of problems trying to change the gear ratio of my 2012 Z71 RWD. The truck came with a 3.73 and I was trying to install a 4.11 ring and pinion. The truck should have a 8.6 inch rear diff according to all ring and pinion manufacturers (Yukon, Motive Gear), however mine is...
  6. After Tire Spins Truck pulls hard

    I4/I5 Engine & Drivetrain
    Hello Guys, I hope this is the right place for this I did a lot of searching to hopefully find similar issues. The problem I'm having is any time one of my tires breaks free and starts to spin while I'm taking a turn, like say I'm leaving a neighborhood and i need to get to speed quickly and i...
  7. Ring and Pinion Replacement/torque specs

    I4/I5 Engine & Drivetrain
    I have been doing some searching and have not been able to find anything on this topic, does anyone know of a how to for replacing the ring and pinion in the rear? I am not sure of the torque specs required. if there is no how to does anyone knows the specs when reassembling the rear? thanks...
  8. 4x4 not engaging!

    I4/I5 Engine & Drivetrain
    So this is my first post, and i'm really looking forward to getting some opinions and advice on my problem. My 4x4 isn't engaging, but my drive shaft is spinning and the differential sounds fine. Took out the actuator to see if it was working properly, and it seems to extend upon engaging the...
  9. For Sale Limited Slip Diff with 3.73 gears -$175

    For Sale
    Hey guys, I'm moving cross country this month and need to lighten the load. Up for grabs is the original limited slip differential (not a G80 Locker but GMs limited slip) with 3.73 gears from my 2007 Colorado, I swapped out the rear for a 4.10 G80 after I lifted it before I traded it in. This...
  10. I call him Mumford.

    New Member Introductions
    I'm from the Frederick Co area of Maryland. For those who don't know Frederick is one of the more rural counties in Maryland. It's about 40 miles north of DC and 40 miles west of Baltimore. I picked up my 07 Colorado 3.7 Crew Cab used about 2 years ago after totaling my old 99 S-10 (plowed the...
  11. Help needed with diff spacers?

    Lifting
    Hey guys! I'm working on getting a set of spacers, and figured I would drop the bolts out of the front diff mounts, and wait for the spacers, and the new half shaft to come... or so I thought. The Problem: I started loosening the bolts, and one appears to have a nut inside the boxed frame...
  12. Eaton G80 locker questions

    I4/I5 Engine & Drivetrain
    I am so tired of the one tire fire on my truck. It seems like Im constantly spinning one wheel helplessly when its muddy or real wet and im pulling my trailer. I have a 2007 3.7 with 3.73 gears. I want to get the G80. If the seach function on this site would work i might not have had to...
  13. Has anyone swapped out the rear axle???

    I4/I5 Engine & Drivetrain
    I am considering swapping out the rear axle for something with 4.10s that I can get an aftermarket locker in. Has anyone tried this and found an axle that fits fairly well? I would prefer to keep the 6 lug pattern but so far it looks like my best options are going to be a 5 lug since I don't...
  14. H3 E Locker???

    I4/I5 Engine & Drivetrain
    Hello everyone I am new here but I didn't see this one addressed anywhere, sorry if this is a duplicate. I know the H3 has the same platform and comes with an elocker in both the front and the rear. From what I have been able to find the H3 also uses the AAM 800 rear end, although it is a...
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