What is the strongest front and rear toyota based diff? I think the strongest rear axle is out of the fj80 and I heard the new 4runners have an 8" front diff. What about the strongest cvs? I know the tundra ones are a lot beefier. What do you guys think?

 

FJ80 front and rear probobly because its a v6 or any other rear diff out of a v6?, i dontknow for sure

 

well I still want IFS front, so can't use the fj80 front

 

fj80 has a 9.25" rear end or something like that. and no cruiser ever came with a V6, most had inline 6 engines

 

LC80 uses a 8" reverse cut high pinion front and a 9 1/2" rear.
I think those are the strongest toyota makes, except for maybe the LC100 series. I had one of those rear axle's a few months back and the ring gear was a tad larger than my LC80.

 

Tundra CV's are definitely NOT beefier. The inner joint is simply a different design, but they share the same front diff and exactly the same weak point (the breakage point) as the 1st gen Tacos and 3rd gen 4Runners -- the weak, small diameter of the axle shafts at both ends, which is about only 1.1". That's small.

 

what about the lc100 cvs? they any beefier?

 

even if you could get beefier axles the jack shaft is still weak, and I totally agree with Jeff the Tundra axles aren't any stronger.......

 

just learning here, which part is the jack shaft?