AX-15 Rebuild?

[JeepHD]

How hard is it to pull apart an AX-15 for a rebuild, basically new synchros and if anything else looks worn? I have done the old T-150s and T-176s before, just not the newer ones. The tranny really shifts pretty good, just shifts hard when cold.

I have an NV3550 that I had put in in it's place and I ma just not happy with it. Sounds like a lot noise from the front bearing and it pops out of 3rd fairly easily, so I thought I would freshen the AX-15 up a bit and swap it back in.

[4RunnerAdam]

Here's a rebuild on the sister tranny, the R151

http://www.4x4wire.com/toyota/tech/r151f/

If it just shifts hard when cold, I'd try switching over to some synthetic oil like amsoil or redline. I've heard a lot of sucess stories about these oils. I need to change my R150 over too since it does shift hard when cold.

[KargoMaster]

If I had to rebuild one... I would do the NV3550... they seem to be quite a bit stronger, without the known weeknesses of the AX-15... but that's just me.

Gearbox is a gearbox... can't see how it could be dramatically different.

[JeepHD]

Yeah, I don't know why, but I liked shifting the ax-15 better. I know the 3550 is considered the better tranny.

If I had to rebuild one... I would do the NV3550... they seem to be quite a bit stronger, without the known weeknesses of the AX-15... but that's just me.

Gearbox is a gearbox... can't see how it could be dramatically different.

[sarge]

The down side to the 3550 is that the aftermarket has stopped producing parts and the only place to get them now is through the stealership , so the price is going to be way high.