My transmission housing got busted open running over a rock (Ran over a rockslide I didn't notice on the road). The gear oil leaked out and who knows what is going on inside the transmission.

What transmissions will bolt-in easily? I hear the LSJ version will work, but I noticed there are differences in the the axleshafts. Mine had the OPT G85 with the LSD. Getting an exact replacement is a huge PITA since they're uncommon and all of the ones online are like 2K miles away from me.

What will need to be done to make a transmission from the 05-07 work? Also, will a clutch for the 05-07 work if I swapped in a transmission from that model?

I understand that the one I have is the MU3 and the MU2 is "just a difference in gearing". But is it really a simple bolt-on swap?

 

 

Thank you so much! I will look for the LSJ G85 LSD then

 

Also, are the mounts the same or different? I really want to do an upgrade to them since I had crazy wheel hop.

 

Just buy aftermarket rotated mount. Lnf Mount is better than the lsj.

 

Lsd diffs cost significantly more than non lsd.

 

Yeah I'm willing to shell out for the LSD. I live in a very rainy climate, so I want all the grip I can get. I've also gotten used to it, so a couple hundred dollars isn't too much for a nice addition.

I just really want to make sure I get the right parts. I am going to buy a new clutch kit and flywheel, as taking out the trans was a PITA and I am going to get as much done as possible while it's out.

What clutch should I get if I'm using the transmission from the LSJ engines? Will I need anything else (different starter, shift cables, axles etc...)
Thanks again!

 

Flywheel bolts, flywheel-luk from rock auto works from what I've heard, or a factory replacement from ZZP, gmpp clutch upgrade from crate engine depot, 2 quarts of factory fluid. Install new axel seals if it's a used trans, and you should be good. These parts are good ones for the money and will last a fairly long time.

 

BMW 8spd manual with a FMSR custom 3.0 ecotec