Need to replace rear differential

2006 GMC YUKON
220,000 MILES • 6.0L • V8 • 4WD • AUTOMATIC
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RONNYT
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Want to buy re-manufactured complete rear end, but not sure what is OE? Has ten bolt cover. Please help
Oct 30, 2017 at 4:56 AM
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PATENTED_REPAIR_PRO
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GM 8.6".
Oct 30, 2017 at 5:13 AM
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PATENTED_REPAIR_PRO
  • ✓Experienced Mechanic
  • 1,853 POSTS
If you find your rpo codes, usually found in the glove box on a sticker, the rpo code GT4 is a 3.73 gear ratio. Standard open differential, 4.10 gear ratio. Standard open differential (Opt GT5), 3.73 w/LSD (positraction) (Opt GT4), 4.10 w/LSD (positraction) (Opt GT5).
Oct 30, 2017 at 5:18 AM
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