trans and tcase question???

[MUDDER TRUCKER]

is the bolt pattern for a 4l80 and a 4l60 the same? and are there diff spline counts for each? because im looking for a pass drop tcase for my 4l80,heard there are some from 88-90 burban 241s that bolt up to the 4l60,but i want it to fit my 80, im doing a solid axle swap on my hoe!

 

[Onebadsuv]

is the bolt pattern for a 4l80 and a 4l60 the same? and are there diff spline counts for each? because im looking for a pass drop tcase for my 4l80,heard there are some from 88-90 burban 241s that bolt up to the 4l60,but i want it to fit my 80, im doing a solid axle swap on my hoe!

Bellhousing bolt patterns for GM small block and BB are same . 4L80 Has higher spline count . You can use the transfer case behind a 4L60 - just need to upgrade in/out shaft to match 4L80 ... only difference in tcases.