posi into non posi carrier?

[Hogback Fabrication]

Carriers, gears and housings are all different almost always. That's why they all have shims.

Having said that, carriers are usually close enough that they don't require a change in shims. Always a good idea to check it, i've had to change backlash once in six or so carrier-only changes.


And not sure between bothering to swap to a posi or spool (welded diff)? I'd figure which one you really want/need first. BIG difference between the two.

 

[Blue85]

Yes, the machining tolerances are pretty good on the gears and also the carriers. The shims are mostly to account for variance between housings. Changing the backlash and carrier preload is pretty easy. With a carrier-only swap, you'll get to skip the worst parts, which are pulling the pinion bearing and starting a new crush sleeve. Since most people don't measure the carrier bearing preload (they just set it "tight"), you don't even need an in-lb gauge, just a dial indicator and some calipers or micrometer.

Even if the pinion depth isn't perfect, it's probably best to leave it alone since the gears have already been running that way for so long. The carrier can't change the pinion depth without being out-of round and then it would have too much run-out to be usable anyway.

 

[nsxxtreme]

I think you'll be fine, I think your backlash will most likely change, because from my experience the carriers aren't consistent enough to have the same backlask with the same shims. But since you have the same gearset and same housing, the pinion depth won't change, you aren't even taking the pinion out I am assuming. And in order for the carrier to effect the pinion depth, that means one of the carriers would have to be machined on a crooked lathe or something. And a lathe is usually pretty consitent as far as runout goes. So if you are just worried about pinion depth, then you're probably fine. But if you are hoping you can just pop it in without changing the carrier shims, you probably won't get that lucky.

No I figured I'd have to set the carrier shims. That was pretty much a given using a new carrier. No reason to pop the old pinion out. I'm really slow with my projects LOL takes me months from when I decide to do something and when it actually gets done. I'll update this post when its complete.

Thanks for all the replies everyone!