I Do This For The Glory
Join Date: Dec 1999
Location: Nobleboro, Maine
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Re: Can\'t make 3rd gear
Yes, if you have the other gears, it sounds like the 3rd gear synchro may be out of alignment. Either that or the shifting rod in the tranny is bound up. My SR-4 had a synchro that was shot, then I realigned it one day while shifting without the clutch (sounded like the tranny let go, shook the whole jeep), and it was back. Then another gear left in very small pieces, but that's another story.
To check which one it is, remove the tranny cover and the top of the tranny where the shifer goes. Cycle the shifter with it off the jeep to make sure the shift rails aren't bound. There are some interlock pins that can come loose and bind things up well. If it cycles well, you know it's the synchros.
I have the manual on that tranny and can scan it if you'd like. It shows the exploded diagrams of everything along with assembly/disassembly procedures.
Winter Harbor, Maine
'81 CJ-8 Scrambled, It's a Jeep, Chevy, IHC kinda thing!
'88.5 Zuki, 7" Lift, Locked, Swamped, Rolled, and just generally broken in right!