Aftermarket Differential Upgrades?

[l008com]

All of the 'trucks' I've owned in my life have been GM. So I'm curious about Toyota differentials. Is there a standard size or a few specific sizes that all Toyota trucks (including truck based SUVs) use?

Ultimately, if I end up with a new 4Runner, I'd likely be going with the base model, and I'd like to upgrade at least the rear to a Truetrac limited slip.... possibly the front too but upgrading the rear would be much more important.

And another thing, where would I find a shop that can do this kind of upgrade? I'm currently driving an older V8 trailblazer, and back when it wasn't quite so old, I started asking around if anyone does custom rear diff installs.... zero takers, nobody wanted anything to do with that.

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[ryno]

im not sure on what is in these yet, but im sure there will be be aftermarket stuff soon. ill be doing eaton tru tracs and possibly re-gear once its all done

 

[Vincenzo]

OP, not all Toyota axles are created equally. My Tundra had an 11” ring gear

 

[Dinosoar21]

I have the same question. Just bought a totally bare-bones SR5 RWD, and I really want a proper TORSEN differential with a bit better gear ratio. My understanding is that these SR5s come with an electronic LSD feature clamping brakes on the slipping wheel....and the ratio is 3.58. Would like a 3.73 or 3.90 ratio for towing.

I don't know if these are new rear axles, or if Toyota pulled them "off the shelf" from last the last generation and/or same as the longer-standing Tacoma which may have options out there already. Aftermarket options???

 

[alldogsoffroad]

I have the same question. Just bought a totally bare-bones SR5 RWD, and I really want a proper TORSEN differential with a bit better gear ratio. My understanding is that these SR5s come with an electronic LSD feature clamping brakes on the slipping wheel....and the ratio is 3.58. Would like a 3.73 or 3.90 ratio for towing.

I don't know if these are new rear axles, or if Toyota pulled them "off the shelf" from last the last generation and/or same as the longer-standing Tacoma which may have options out there already. Aftermarket options???

When we have time in the shop our plan is to pick up 3.90 gears from a GX460 and see if we can fit them. We are also working on a torsen-style limited slip for the rear. Some international market Prados came with a torsen internationally for the 8.2 rear diff but they're extremely expensive on partsouq etc.

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