Quote:
Originally Posted by Captainfab
To my knowledge, the Trailblazer SS's all have 9.5" 14 bolt differentials. I believe those are the only Trailblazers with V8's.
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The 5.3 TRailblazer/Envoys ALL had an 8.6 rearend. Pretty much all the 4.2 powered ones were the 8", which is still a good rearend. Some EXT models had the 8.6 also. The 8" is a small step up from the 7.5/7.6. It has quite a bit more meat around the center section. I suspect it uses the same 28 spline shafts as the 7.5/7.6.
The only posis for the 8" are the oem G80 and the Eaton/Detroit Truetrac.