Outer Limits 4x4 Board

Gday guys

Ive got a 75series that i recently converted to 12ht, it is causing me some greif with popping out of 4wd.

I have replaced
both engine mounts
gearbox mount
washered the detent spring on the side of the transfer for extra tension.

so if it is in 4wd hi and i hit a bump it will pop into 2wd hi and if i am in 4wd low it will bump into 2wd lo

Any advice is greatly appreciated, before i swap transfers :( also can the transfer be unbolted while mounted in the vehicle or is it gearbox/transfer out jobby?

cheers lads!

I'm not too sure what's causing your problem but yes, the transfer can be replaced while the gearbox is still in the vehicle.

the selector could be hitting the body and poping it out thats what mine was doing make sure all body mounts at tight