Originally Posted by
Verndog
Actually the TC5 and TC6 diffs are interchangeable IIRC, so I see no reason why the gear diff wouldn't fit the TC5.
Depending on axle engagement the TC6 diffs should be backwards compatible as long as you use bearing shims...
The TC5 diffs however are too wide to fit a TC6. I tried turning down the bearing shoulders until they were dangerously thin and still could not fit a TC5 spool into a TC6...