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  1. GM Powertrain
    I have a 2004 Chevy Astro van 2WD 4.3L with a 4L60E automatic transmission and something is seriously wrong, but I have yet to figure it out. I definitely need some help. I usually do all my own repairs and I am very mechanically inclined, but this has me stumped. I even consulted a friend...
  2. Chevy Suburban Forum (GMC Yukon XL)
    Truxperts, Took the 'burban (100K mi) to mechanic because front end would make low whining and cause notable drag when put in 4WD (whining and drag continues in neutral while coasting, but stops as soon as 2WD is selected). Mech called and said, "front diff has come to pieces. Had oil in it, so...
  3. Other GM Cars
    currently i have: 2014 6.2 silverado 4x4 with 3.42 dif on 35x12.50r22 wheels dif case has 12 bolts. what gear ratio would be recommended to upgrade. 3.73? 4.10?
  4. GM Powertrain
    I have a 3500 4x4 crew cab and the rear diff went out. It has a 4.10 ratio. I am looking for information on a replacement unit. My truck is a SRW. I have located a unit from a 2015 and wondering if anyone knows if it would fit. I understand that my model of DIFF may be the same as in other...
  5. Member Introductions
    I am new to this forum. Not new to Chevys. I have driven and owned and worked on many of them over half a century. I currently have three OBS pickups, one of them is my parts truck. On the 93 GMC Sierra SLE stepside, I have rebuilt the engine (5.7 V8), the transmission, brake system, air...
1-5 of 5 Results