Neil, you do know i have a 3.64 and or a 3.90 diff that is a bolt in and the Wavetrac also fits into the new case i have
just for information the 3.64 is used where the 3.90 is new, for a limited straight bolt in same for the srt6 but i or u have to replace the rear 1/2 of the drive shaft as the yoke is the same as the limited. I now have the rear installed into 3 srt-6 using 1/2 driveshaft
from a srt6 and the rear 1/2 is from a limited ,,,,,,,, jim