Anyone Help me Find a 3.91 2006 Limited Slip Rear Differential?

No they don’t…long story… I also had them check for stamping anywhere on the gears or housing and there’s nothing that says 3.91.
So as long as there is no factory LSD with some other ratio exists it’s safe to assume it’s a 3.91. It’s a steal of a deal at $200…so I’m willing to take my chances..

 

Contact>>>>
http://yotayard.com/
www.yodajims.com

 

Thanks, I’ll do that if this diff I found just now doesn’t work out. Just need to confirm that all LSD were 3.91 ratio

 

Thread

https://www.tundras.com/threads/whats-in-your-rear-end.42904/

 

I read through that, other than the TRD lsd which I’m fairly sure this is not, it didn’t provide me with anymore info on if the 3.91 is the only LSD option from factory.

 

No, the LSD was not just offered with 3.91 gears. 04 DCs have 4.10 gears and LSD.

Source: my truck.

 

Shoot. Well let’s hope this diff I bought is indeed a 3.91. Lol…

 

You're just going to buy a used completely assembled one and toss it in?

Before you put it in, count the number of teeth on the ring gear then divide that by the number of teeth on the pinion gear.

 

Yes. I found a steal for one from a shop had one laying around. It was $200 plus shipping. So, worth the gamble I suppose.

 

Here are pics of said diff....looks clean... just hope its the right ratio!

 

The difference between 2wd, 4wd and RC/AC/DC is potentially the pinion flange.

I'm using a 04 DC 4.10 LSD rear end in my 05 2wd AC rear diff. I did swap to a solid pinion spacer and put a new pinion seal in, when I swapped the flange.


If you do not know how to swap pinion seals/flanges without messing the preload up, do NOT do it yourself.

 

Wonder if that’s because it’s an 04? The only ones with 4.10?

so I did find some marking, on the photo above, you can see “3.90” stamped on the main ring gear. So I think we’re good..

 

The sequoia has the thick flange, all the truck 3rd members have a thin flange.

 

Yep. I got that one specifically for the 4.10's.

 

you can always count the teeth on the ring and pinion and divide them to give you the ratio if its not marked

 

I have a 3.91 limited slip diff in CA collecting dust.

 

This is a 2 ½ year old thread. I'm pretty sure he found a solution by now.

 

Want. What kind of shape is it in? Assuming this is just the 3rd member?

 

I is in good shape it has around 150000 on it I put in one with 4.10 and a lunch box locker in it. Ring gear looks good no major ware .

 

Shame we are so far apart