what are you doing with the car? just DD/spirited driving?

wavetrac or truetrac personal opinion

 

The car is my daily, but I occasionally give her the beans from time to time.
Thanks for the recommendation.
Are you using the stock differential still or do you have experience with those two you just recommended?

 

Have you tried simply changing the fluid in the rear to a high quality fluid with the proper friction modifier? That alone may just get your differential back to working like it should.

 

I use Torco oil and the friction modifier. But it didn't change anything.

 

I put a kaaz in my first GTO back in 2005 or 2006. Loved it, but sold the car in 2008 after making over over 100 1/8th mile and over 100 1/4 mile passes running mid 6's in the 1/8th and low 10's in the 1/4. That car still had the same kaaz in it issue free a few years ago when was sold again.

My current car has a spool in it and I like it for my purposes. Much cheaper than the other options, but probably not something you would be interested in for your use.

Get the kaaz

 

Thanks for the input Bud.
That show that its a solid unit.
Means also that it can take a lot of launches.
Seeing that I don't drag/race mine much, I feel the Kaaz would be too much of the good for that price.

 

The Kazz is a nice unit but pretty much overkill for your stock GTO, even with a blower in the long term. I ran a stock LSD on my heads/cam/LSA car for several years before going with a Truetrac. I don't really ever take my car to the track though so your experience may vary.

 

Thank you for your input.
And what kind of stress did or are you putting on the differential these days?
Cause the Truetrac is the go to for most people but doesn't have the high HP rating as the Wavetrac.

 

Wavetrac is going to be your lowest maintenance, best warranty, smooth operation, highest hp rated option so it does have a lot going for it.

KAAZ is higher performing unit in racing applications be it drifting, autocross, road racing or drag racing but it has its limits in hp rating. That being said, it does need to be set up properly for particular application to get the most out of it. It also requires oil change once in a while.
You can PM me if you wish to learn more details on KAAZ setup.

I am not going to comment on other options as I haven’t had chance to test it. And there is a reason I didn’t bother testing it in the first place.

Diff conversation with the banned one before doing anything is almost a must. Highly recommended.

 

Thanks for adding to my knowledge.
I did not know that you needed to setup the Kaaz differential.
I had spoken briefly with TheBannedOne to see if I would let him build the unit for me.
But seeing that I live in The Caribbean, it wasn't that convenient and we couldn't reach an agreement.
But he took the time to enlighten me and that I appreciate.

Believe me when I say I am not that reassured letting someone else build it for me seeing all that is required for this unit.
This is where I say, I wished I lived in The States.

I will be contacting you and thanks again.

 

Who is this banned one you speak of and how do you reach him?

 

I'd go with the TrueTrac, it's tried and true for many vehicles. I've got one in my boosted Gibbs and have never had any problems and one sitting on the shelf if the stock diff in my boosted 04 GTO ever goes out. My GTO's diff did single leg on me at one time, but changing the diff fluid cured it so far. FYI..

 

Thank you for your input.
So you drag your cars mostly would you say?
I'm asking to see if in my case I burn rubber, or do elevens and or drifts if its comparable to the stress.

 

I've been happy with my Truetrac. It hasn't seen much strip action, actually only three passes last year, but it has been great handling spirted runs on the street. The rear end is much more controlled than it ever was with the factory LSD once the tires start spinning.

 

+1 for Truetrac. On my second now & will buy a 3rd when it's time.

Kaaz has a great unit for heavily modded &/or track. I had one in my old R35 GT-R.

I would personally avoid a spool/locker on anything other than real 1/8 or 1/4 track car.

 

Hey everyone,

How goes it?

Just finished with the differential.
The 3.71 gears mated to the eaton trutrac has me giggling like a little child.
Best decision in my opinion.

Thanks to everyone for pitching in with there advice.

Time to burn some rubber😎.

Take care,

Marc-Antony

 

+1 Love my Eaton Truetrac