Outer Limits 4x4 Board

While I was out playing in the mud yesterday my rig started to jump from H4 to H2. does this mean the gears in the transfer case are knackered I know the front bearings are fairly stuffed and a rebuild is in the line but the basic kits don't have new gears any thoughts would be appreciated as I'm also looking a a marks adapters overdriven kit maybe this would be the way to go

What model is the 40?

Could be interference with the floor pan and the shift lever.

Could be worn dog clutch teeth.

The parts that control 2/4wd are separate from the gears.

I wouldnt use the Marks parts, havent heard anything good about the gears.. If you want OD, fit larger tyres.

its a 47 troopie and this is the first time I have had this problem it usally gets stuck in h4 and needs to reverse 6" to shift it back at the end of the day.... any one else heard anything about the marks adapter gears......am going to fit 33's regadrless