Diff questions (1 Viewer)

[cruiseroutfit]

Maybe you have to grind it for an aftermarket locked carrier, but not for the factory locker. 529 Sierra Gear install But in your scenario, with an aftermarket locker, I can see why you might be wary of grinding the frigging tooth, that's kind of scary. Probably sounds worse than it is, but damn. Another reason to avoid ARB/Harrops...

Seeing as Toyota doesn't make a c-clip locker, true... nor does Harrop. So neither will require grinding as it's only needed on c-clip retained semi-floats. ARB makes both and their c-clip only version does require grinding. If Harrop or Toyota made a c-clip locker... it too would need grinding which is a non-issue imo.

 

[bjowett]

There are many great parts right from Toyota for this diff. Factory gears include 3.90, 4.10, 4.30, 4.556, 4.875, and there may be a 4.625 hiding somewhere, it's been some years since I searched through it all. Some of the 2nd gen Tundras also use this diff... which gives access to an input flange that will support a 1350 U joint. The Tundra w/ 9.5" also has a great housing to build some custom width HD stock appearing axles. The tubes are nearly 3.5" in OD. I'm using them in my BJ73 project.

 

[HDJdreams]

I'll try and remember to measure when I'm back in town and at the shop. We've got all the 27, 29 and 32 spline pinion shaft variants there. I've also got a ton of 30 spline axle shafts and a couple loose 32 shafts I can measure. Major diameter on the rear shafts is 33mm vs 34.8mm for the 27 vs 32 spline.

Well, both matter but I'll measure the minor

Measurements?

 

[HDJdreams]

What year did Toyota switch from 29 to 32 spline pinions?

 

[bjowett]

I need to double check, but I believe it coincides with the move to the more powerful V8 in the 2006 100 Series.

 

[bjowett]

Looks like 9/2006 and up.