Transfer gears me think

Expensive day out there Adam.

Drop the transfer case off the back of the gearbox and dig your way into the centre diff, as it is most likely you have broken the cross pin in the centre diff.

As far as the back end goes, a complete axle assembly change over would be the quickest way to fix that one, just make sure that you have extra supports under your bus when you are working under it.

As I said before, if you send me, by personal message on this forum, your contact details and then also the serial number off the rear of the transfer box, I can then rouse up any parts you find are needed, ones that won't cost a fortune that is, it will help by sending the VIN as well.
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Center diff in the foot of the Tcase is shot if you're lucky the hi low gears are binding if you're not.

Adam, Arthur is your man! (good one Arthur:)) try and take this opportunity to upgrade to 24 spline axles too. He should have some lying about, if not, get him to ask Graeme.

Same with TC parts, If he hasn't got any i have a complete case from a 1985/6 you can have for freight costs if you need one.

JC