Rear End *wolf whistle*

[mechanixman]

I recently stumbled across an article talking about a Gleason differential.
Here it is:
http://members.rennlist.com/951_racerx/ps84gleason.html

A quick search showed that they came from the factory on late model firebirds, camaros and miatas.
Other names would be a Zexel differential, or a Torsen Diff.

I'm really intrigued by this and I kind of want to see if I can put something like this in my truck. Does anyone have any more info or tips on this type of rear end?

Thanks,

[1project2many]

Trying to build a torquey front driver quickly leads to traction problems. So the front drive guys love these diffs. The first time I read about them was in '88 or '89 when Olds was involved in racing with the then new 2.3 Quad 4 engine. Even then they were thousands of dollars. But it's always fun to dream...

http://www.torsen.com/general/general_faq.htm
http://www.torsen.com/fsae/fsaefaq.htm
http://www.autozine.org/technical_sc...tion_4wd_2.htm

Just search out "torsen differential" and you'll find a ton of stuff.

[Lextech]

I have a DANA 60 with a Detroit Tru-Trac which is a Gleason/Torsen type of diff in my 98 GMC twin turbo truck. It is smooth as silk. Never chatters or pops---Because it can't. Turns corners just like an open (One Legger) rear end and ALWAYS leaves two black streaks that are the same length. I am VERY happy with mine.

Jeff

[mechanixman]

Alright, thanks guys

So can you take a type 2 Torsen chunk (pumpkin) out of an early 2000's camaro, and drop it in say a gm 10 or 12 bolt housing? In other words, what's the best system to get the right strength (eventually, I want it to handle 600 horses), and size to fit my truck.

[Highsider]

I wanta buy a "wolf whistle" !
I seem to remember them on rods in the sixties...or my mind invented the memory.

That and a 45-rpm in-car record player.

[mechanixman]

http://www.honestcharley.com/hot-rod...le-vacuum.html

http://forums.aaca.org/f119/arc-2500...er-283309.html

[Highsider]

Originally Posted by mechanixman

http://www.honestcharley.com/hot-rod...le-vacuum.html

http://forums.aaca.org/f119/arc-2500...er-283309.html

Bingo!

[1project2many]

I used to borrow a one ton Dodge equipped with a wolf whistle. With enough practice you could almost make it sing.

As far as the diff... most F car axles after 81 were 7.5 or 7.625 ring gears which aren't interchangeable with other GM differentials. The Dana 60 is a very strong axle and the one to use when nothing else holds up. Reliability, though, depends a lot on how you drive and the weight of the vehicle so a smaller diff like a Ford 9" or car 12 bolt may also work.

[mechanixman]

Originally Posted by Lextech

I have a DANA 60 with a Detroit Tru-Trac which is a Gleason/Torsen type of diff in my 98 GMC twin turbo truck. It is smooth as silk. Never chatters or pops---Because it can't. Turns corners just like an open (One Legger) rear end and ALWAYS leaves two black streaks that are the same length. I am VERY happy with mine.

Jeff

Did you have to narrow it? Which dana 60 did you use?
I'm asking because I found a dana 60 for 60 bucks. It has the full floating, 8 lug axle, so it will look (kinda) stock. If I could make that work, that'd be great!

Thanks,

[Lextech]

Mine is actually an M60. Which is the Moser version of the Dana 60. It is a custom built housing.

Jeff