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-   -   What in the world? What differential do I have. 2000 Saleen S-281 SC (https://saleenforums.soec.org/showthread.php?t=22761)

SaleenDion 02-28-2020 10:08 AM

What in the world? What differential do I have. 2000 Saleen S-281 SC
 
1 Attachment(s)
As the title says, just bought a 2000 Saleen S-281 and cannot for the life of me figure out what differential I'm looking at?

Also, did Saleen ever do 4:10 gears on special request?

Dave 02-28-2020 10:22 AM

If there are a bunch of gears inside it is probably a Torsen-style differential. Saleen offered a Torsen rear as an option.

What is your vehicle model year and Saleen serial number?

SaleenDion 02-28-2020 10:26 AM

Quote:

Originally Posted by Dave (Post 149471)
If there are a bunch of gears inside it is probably a Torsen-style differential. Saleen offered a Torsen rear as an option.

What is your vehicle model year and Saleen serial number?

It is a 2000 Saleen S-281 SC, Number 907

Dave 02-28-2020 10:33 AM

00-0907 does not appear to be a vehicle that received the differential option from Saleen.

Keep in mind, the early New Edge era S281 Supercharged models had their rear gears swapped at Saleen. Ford made the 3.27:1 rear gears standard for the New Edge GT. During these 1999/ 2000 S281 conversions, Saleen installed 3.08:1 gears in the Supercharged cars. For either gas mileage/ emissions, or for both.

Owners swapping rear gears was not uncommon back-in-the-day.

SaleenDion 02-28-2020 10:35 AM

Quote:

Originally Posted by Dave (Post 149473)
00-0907 does not appear to be a vehicle that received the differential option from Saleen.

Keep in mind, the early New Edge era S281 Supercharged models had their rear gears swapped at Saleen. Ford made the 3.27:1 rear gears standard for the New Edge GT. During these 1999/ 2000 S281 conversions, Saleen installed 3.08:1 gears in the Supercharged cars. For either gas mileage/ emissions, or for both.

Owners swapping rear gears was not uncommon back-in-the-day.

Have you ever seen a differential like this? I can't find anything that looks like it.

Dave 02-28-2020 10:41 AM

I am not familiar with "hard parts."


There are a few different "styles" of locking / limited slip rear differentials.

Ford "Traction Lok" is a clutch style diff and fairly common.

Torsen-style have gear packs that handle the power transfer to the axles.

You also have ratchet and spool-type diffs that positively lock the axles together.

jcar302 02-28-2020 05:06 PM

I've never seen one with a smooth rounded shape like that.
How many spline axles?

SaleenDion 02-28-2020 06:47 PM

Quote:

Originally Posted by jcar302 (Post 149476)
I've never seen one with a smooth rounded shape like that.
How many spline axles?

31 spline. I know right? I've never seen that before either

jcar302 02-29-2020 12:06 PM

Scroll down half way.
Is that it?
https://www.jalopyjournal.com/forum/...arrier.980369/

DarkStallion 03-02-2020 12:06 PM

differential carrier
 
It looks like the one I have in my car which is 31 spline. I actually put 3.73's in my car over a year ago maybe 2. My window sticker says I have the "maxgrip" differential. As to what the actual brand is...tough call. Even the guy who worked on my gears said he was surprised to see it and it was unusual, but did mention it looks similar to what they put in jeeps and hydrolock. Can't speak to that as I don't know jeeps. This was a while back so can't really recall, but safe to say it is the Saleen "maxgrip." Order your window sticker to see what that says as an option.

SaleenDion 03-02-2020 02:06 PM

Quote:

Originally Posted by DarkStallion (Post 149490)
It looks like the one I have in my car which is 31 spline. I actually put 3.73's in my car over a year ago maybe 2. My window sticker says I have the "maxgrip" differential. As to what the actual brand is...tough call. Even the guy who worked on my gears said he was surprised to see it and it was unusual, but did mention it looks similar to what they put in jeeps and hydrolock. Can't speak to that as I don't know jeeps. This was a while back so can't really recall, but safe to say it is the Saleen "maxgrip." Order your window sticker to see what that says as an option.

Thank you!! Yes that's what it is...
Now, how do I find info for this thing??
Where do I get parts? How much friction modifier do I sue for a fluid change, etc.?

DarkStallion 03-04-2020 03:15 PM

maxgrip
 
When I had my gears done, I just used the Ford Motorcraft modifier and diff fluid. The weight is more of a personal choice, but I went standard just don't overfill. Also, for clutch packs or to rebuild your differential not sure what goes in there, as I just added ring and pinion. Should be standard stuff though but hard to say. A good mechanic should be able to find what you need when you need it. Just take care of it should be good for a while. Make sure the caps are torqued down and locktite is a good idea. Ok good luck.


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