alright I'm currently on a different forum in a debate with someone over rear toyota axles. I'm currently working on a 2 wheel drive Chevy LUV with a 327 in it. I want to upgrade the rear to a 8" yota rear. I figure with 1 5/16 axles and a 8" ring gear, factory 4.10s and a wide aftermarket selection I cant go wrong. This guy seems to disagree. I have been in the offroad world for 15 years now and seen the abuse toyota rears can withstand. One of his complaints is that the gear set will blow up with any substantial hp. Now of course I wouldn't run 600 hp and a decnt size slick to a favctory setup but I dont see why the stock toyota 8" wouldn't hold up to 400-4500 hp and a 28x12 slick. What I'm curious over is what the diameter of the stock 4.10 pinion shaft (79-85) is along with the stock v-6 4.10 pinion shaft diameter. Does anybody know of a link with actual torque ratings for stock axle shafts, gear sets, etc. Once again, Im talking rear axles only, not front, thanks

Not sure on the pinion shaft diameters between the 4 and 6 cyls, but, the stock axle shafts can withstand 7100 to 7400 lb/ft of torque. Chromo upgraded shafts (~$250 /pr) can withstand 8300.
Hope this helps.

Yes it does thank you very much. I just want to back my debate with facts. and ys know what, If end up proving myself wrong, oh well. for any chance do you have a link stating that? or showing a chart?

Cryo treat the ring and pinion for extra strength.

The V6 pinion vs. the 4 cyl pinion shaft are very much the same....I don't think you will find any appreciable strength gain in going to a V6 r/p.
The V6 carrier with the larger carrier bearings might offer some strength increase.
Best gain in strength is a good qual r/p and a good install. Good installers are hard to find it seems.
ZUK

if you are going to go through all the trouble to install a toyota rear,,why don't you just use a ford 9inch,,you will never blow that with a little 327,,even if it hooks

agree....not going to beat the ford 9" rear.