What size of ring gear was used in the Corporate 10bolts on S10s. I know about the 7.5in size, but were there any other sizes used in these rear ends on the s10. If there were any different sizes, what years were they and what S truck were they used on(ie blazer, syclone, etc).
Yes they do have another 10 bolt. Has the 8.5 ring gear. Full size use this one as well as the ZR2 and anything else that had higher horsepower. But not sure exacly the years. Also know those carriers are NOT switchable, the axle housing is different. I thought the smaller one had a 7 5/8 ring gear. Im looking for a new axle because of this. Probably going with a D44. Im looking for bulletproof off-road.
Thought of a 9" but I lose about an 1 1/2 inch clearence for that much more durrability compaired to a d44. I think the d44 will do just fine and has a wide availability of parts like the 9". but my mind is not 100% made up yet. More research !!!!
My 89 S-15 Jimmy has a 7 5/8 ring gear. But the Detroit 7.5" C-LOcker fits it.
My gears are 342:1 with a 28 spline axel. GM also made a 26 Spline axle; the only way to know the difference is to pull it and count the splines.
All pre 88's used the 7.5". Starting in 88 with the 4.3, they moved to the 7 5/8". I haven't heard anything definate on this, but I think the 88 and later 2.8 still used the 7.5. The ZR2 uses the 8.5" I heard somewhere that the high output 4.3 and 5 speed also used the 8.5, but I haven't found any info on that.