Benefits of locked center diff

[simplechamp]

I would rebuild the center diff, fix whatever is causing the drive issues, and try some very heavy oil (50k or 100k) before locking the diff completely. If it still unloads too much for your liking then look at locking the diff.

Depending on what truggy you have you may be able to get the GTP locked spool to work with a bit of shimming.