Could someone in the NH or Mass. area recommend a mechanic who could take a look at a Turbo Diff. I want to have it inspected and to determine if it should be rebuilt. Has about 100K on it and it came from an 86. I assume that it should be freshened up and new clutch packs and bearings and what ever else it may need. Thanks

 

buy a new kaaz diff for $700

you will be much better off

S4 T2 rebuild kits are $$$$$$$$$$$$

 

The last time I looked, the Kaaz diff. was no longer available. Who would have it??

 

OS Giken is the way to go and there are dealers in northern MA. Look into OSG

 

whaaaa

ask jeff @ cipmotorsports.com in CT to order you one

they are available. you MIGHT need different sideshafts though depending on your application

 

parts alone will cost you close to $600 I bet, I just did bearings and seals, did not touch the diff itself, and that ran me over $300 in parts and that was over 3 years ago, god only knows how much the parts are now.

 

Thanks for the info. Anyone know of someone who can actually do the work??

 

I did the work on my rear myself, I only gave it to a shop to set the pinion depth and do the final assembly.

but again I did not do the lsd itself.

Start at local transmission shops, prefer one that might be known for high performance work- a rear is a rear there is no need to look for a mazda specific shop.

 

CIP can do it. Any transmission shop should be able to do it.
You should be able to find something local... a diff is a diff... nothing special about the Mazda one.

If you go OS Giken you will need a certain stub shaft, they have the PN listed on the OSG site... $125 each new or can be had for about $100 used for the set, also need C-Clips from the dealer(cheap)

 

anyone in my area I sugges Freddy Brown in Bayshore- excellent shop and has been around the block for quite some time.

 

I just bought an FD torsen for $200, it swaps right into the TII rear, you can use S4 stub shafts, and you don't have to rebuild it.

it's also a lot better than the clutch type up until about 400 rwhp where they explode

 

Wher can I get a Torsen for $200.00 ??? Thanks

 

ummm... I think your misinformed. Many FD owners switch out the torsen for the S4 clutch pack style diff. It is by far the most "sought after" and most reliable. A few V8 guys run in the low 10's with it consistantly and that is throwing HUGE amounts of torque at it.

 

i am not a torsen fan. they are easy to destroy.

new kaaz is still my vote

 

I got mine in the 3rd gen for sale section.

the torsen explodes at 400 whp... that's why FD owners swap them out. The torsen has a linear engagement, clutch types don't.

 

Thanks to those who commented. I think I'll just get mt s4 style clutch style diff. rebuilt.

 

that's your best bet for the $ .

 

I thought viscous was the same as clutch type?

 

no sir, a viscous doesn't have any clutches on it, it works on the viscosity of the fluid alone. They don't need to be rebuilt because the fuild is what wears down, but they really aren't that great because they react really slowly.

 

YEP!

FYI
If you plan on drifting Viscous will not do the trick.