I have just replaced my output shaft bearing and oil seal on my 90s transfer box (original LT230) and fitted a double joint prop because the original one was goosed. The output flange had a fair amount of up and down play and also I have been getting a whine in 4th & 5th low revs and assumed this was related to the bearing. The seal is constantly leaking too. Anyway, after fitting the prop back on I tried moving the prop up and down again and the play was still there (coming from I think, inside the box) is it something that can be shimmed up with the box still in situ? Any help would be great, thanks.