Originally Posted by NC Steve
I bought a pintara diff with 4:11 gears which I am attempting to fit to my Fairlane. I have started pulling apart the pintara diff and have run into a little problem of not being able to undo the crownwheel bolts. I know they are left hand thread but with my rattle gun on its highest torque setting I still can't get them undone. Any Ideas??
Put the whole hemisphere onto an axle so that its supported at a workable height and attach the axle to a tyre so it can't move while you or a friend is standing on the tyre... then get either a 3ft long breaker bar or a normal ratchet with 3ft of pipe over the handle to make it super long. they should come off OK then.
Failing that get a decent quality spanner and a small sledge hammer, should come off eventually. But watch the ring gear when you tap it off, its a long way to fall onto a solid surface if its not supported properly.