I've got a chance to get a Truetrac Limited slip unit for my 89 4x4 (V6 w/8") for a pretty reasonable price used. I believe it's this same one offered on Summit:

http://store.summitracing.com/defaul...=egnsearch.asp

Does anyone have any experience using this unit? Is it pretty solid? The guy said it has about 20k miles on it. Anything I need to watch out for? How long should it last me? I plan to buy it now and install it when I regear this winter. Any input or opinons on this unit are welcome.

Thanks.

 

First I'll tell what I've heard: I've never heard one bad word about the Truetrac. They have been popular for years in front axles, even with lots of horsepower (like in a rig with a Detroit locker in the rear) because they work smoothly. The way they work, they should last pretty much forever. I've personally never heard of one broken or worn out.

What I know: I have one. It is smooth and silent. It works. I like it and would buy it again.

I had a TRD limited slip in a past rig (2 of them actually,) and would never go that route again. Finicky to get quiet, required adapting my driving to get it to engage (no biggie) and wore out fairly quickly. (No more lockup or very little anyway after 50k miles or so.)

 

I put a TrueTrac in my 97 supercharged 4Runner. Excellent choice for on road use.

I don't think it would be very good off road since it needs some resistance on both tires for it to do its thing.

I have an ARB in my off road 4Runner.

 

There's not alot of hardcore trails where I live, so I am more concerend about daily driving for wet and snowy conditions during the winters.

Thanks for the input guys!

 

Read this also: http://toyotasurf.asn.au/forum/viewt...?p=52672#52672

I´d like to get one too.

Here you can get it even cheaper than Summit; http://www.drivetrainspecialists.com...duct-2410.html

 

Thanks for the link. That's not a bad price for a new unit!!

 

Buudy has one in front of his 87 and loves it.

They don't make it for my Landcruiser

 

I used to run one:

http://www.4crawler.com/4x4/TrueTrac.shtml

 

I run one in the front and it does very well. The only situation where it struggles is when one front wheel is completely off of the ground and I don't have any forward momentum, like in rock crawling.

 

Practice your brake biasing technique. It takes a while to get the hang of but works quite well if done right.

 

Just remember to be careful with that technique. I was using the e-brake to lock up my old TT. It would seriously lock up like a locker with enough e-brake induced loading. Unfortunately, it broke the TT and twisted my axle housing.

The TT is fine for mild wheeling and mild brake biasing. If you can get 'er to move with that, get the tow strap, it's much cheaper than the carnage.

I loved the TT's on road manners and performance in the snow.

Frank

 

I"ve had one in the front of my truck for years and really like it offroad. I do have manual locking hubs so it's not spinning on the street though. I used to have an Auburn Limited Slip in the back axle and I did not like that. I also felt the Auburn didn't work very well offroad even with using the e-brake. I eventually replaced the Auburn with an ARB locker which is awesome.

 

Yeah, I am working on it. I installed a hand throttle and that helps too.

 

I found the biggest help to brake biasing was getting a second t-case in my 4Runner. I found it took about 75:1 (or higher) crawl ratio to make it work well for me. This gearing was low enough that the engine was not killed with the brake application. That is you had enough engine torque left from climbing the obstacle to "waste" some on the brakes to get the LSD to lock up. I did end up breaking both Birfields (actually the upgraded Marfields) on one hard dry waterfall climb. I was turned pretty sharp and had to really get on the brakes. I did make it up unassisted and did finish the trail and drove home all under my own power.

As I write on the web page above, the TT is fine for general use and an occasional brake tapping off-road, as needed. But if you are going to start running trails that cause you to lift tires or otherwise need to lock up the TT, then some other type of locker might be a better choice. If I were to build up a daily driver/mild off-road truck, I would slap TTs in front and rear in a flash. I have a torque sensing diff like the TT in my VW and I love it. It totally changed the whole personality of the car on and off pavement. Just point the front tires wherever you want to go and punch the throttle!

 

I lost my hookup on the used one sadly So I called Summit and they price matched Drive Train Specialists. I ended up getting it new for $322 shipped. Now, I start to wonder, do I need an install kit or anything special for installing it?

 

You'll need either a mini- or master-install kit for it. Going to be essentially the same as a Soft-Locker install:

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

 

That being the case, it makes much more sense to wait and install it when I have the gears so I am not doing the same thing twice in the rear end. Thanks for the link