Manual hubs with an ADD front diff help

@BartMaster1234 I have an e locker rear end out of a 97 limited tacoma, im planning on getting the front diff of that tacoma to match the gears but what about the ADD system? could i still use my manual hubs and drive shafts?

 

You’ll need to swap the axle tube/jack shaft on the ADD front differential for the solid manual hub tube from your existing differential. Or you can lock the ADD actuator with a hose clamp.

 

Can you show me what you mean ?

 

The shaft that sticks out from the ADD diff i swap that out with the shaft that sticks out of the diff in my tacoma? And what do you mean lock the ADD with a hose clamp?

 

Oh the right are the axle tubes or jackshafts.

The bottom is a vacuum ADD setup with the vacuum actuator (removed in picture) On the top is the axle tube setup for manual hubs with not actuator. See how it’s a solid tube without provisions for an actuator?

You’ll need to hammer or pry out the ADD gear stub inside the ring gear assembly. Some people can do this with prybars, but I opened the clamshell and hammered it out.

 

I can’t really make out what you’re trying to say. The hose clamp method is a way to lock the ADD actuator in “locked” permanently since you don’t have an ADD system if you want to run manual hubs.

 

do the axels from a 3.58 front diff work on the 4.10 front diff?

 

And would just putting a hose clamp on the actuator shaft work just as well? or would you recommend putting the axel tube from diff to diff?

 

Yes. The CV axles are the same.

Absolutely swap the axle tubes. The manual hub axle tube is simpler and stronger.

 

would it matter if the diff on the 96 tacoma is 3.58 and I sawp the axel tube to the 97 tacoma with 4.10 gears?

 

Makes no difference whatsoever. The only thing that would be different is the ring and pinion gears.

 

What did you hammer out of the ADD diff? And the R36 axel tube has a small spindle but the R26 has a thicker spindle, where dose that fit in or how does that work?

 

You have to remove the ADD gear stub to make the manual axle shaft work.

The ADD gear stub looks like this, and sits inside of the ring gear asssmbly inside of the differential:



If you notice the right end of that gear stub, it’s the same as the end of the manual tube axle shaft. You are eliminating this piece and replacing it with a longer solid axle shaft.

I had to disassemble the clamshell to hammer it out of the ring gear assembly, but some people can attempt to pry it out of the differential through the clamshell via the mating surface.

 

Ohh I see! And thats all that has to be done?

 

Pretty much. The you need to reseal the tube and the clamshell with Orange Toyota FIPG. Available at your local Toyota dealer.

I would put new axle seals while you’re in there. Cheap enough and easy enough.

 

do i order axel seals for 97 tacoma or dose it not matter ?

 

Axle seals for a 1997 Tacoma with Manual Hubs

 

Read this thread, it has all the answers you are looking for.

https://www.tacomaworld.com/threads...or-the-1st-gen-tacoma-3rd-gen-4runner.460180/

 

Is the front differential from a 3.4l diffrent from a 2.7l ?

 

Nope.

You can even use certain 4Runner, Tundra, and Seqouia front differentials.