What's the difference between the S829 A, B, D etc ?

 

Me too, actually.
Friction modifier is only needed for the limited slip, so no, you don't need it.

 

 

He most likely is suggesting the upgrade to an LS - since I'm going to the trouble of the swap.
Hence the suggestion of the S829.

 

Wouldn't waste money purchasing the same rear end. Put a LS in it for sure.

Not sure if your 4x4, you're avoiding that question. Being in Canada, I'd want at the very least a LS rear gear.

 

Yeah, that's what I'd do, too. I just don't know these codes.

 

BTW- You'll need friction Modifier for that ^^^..

Lol

 

... And may I suggest: The next time you have questions particular to a problem like this, it would be better to start a thread specifically about that (and let the "thinkers" in on it if you wish). Doing so will give more visibility to other forum members to contribute or learn.

 

Me neither, -wasn't a parts dealer in a previous life I guess.