[AussieinNC]

Originally Posted by AllGoNoShow

Previous owner put a supposedly rebuilt M20 in my 1968 C10 with a Hurst Competition Plus 4-Speed Shifter. Have only driven it probably 20-30 miles and during a somewhat spirited 3rd to 2nd downshift, the tranny got stuck in 2nd gear (with the gear shift lever stuck in the neutral position).

I was able to nurse it home in 2nd and removed the shifter hump to take a look at things. I just messed with the gear shift levers and it suddenly freed itself up. I adjusted the shifter using the "alignment hole" per Hurst instructions (using a 1/4 drill bit), and am still having issues. It appears the 1-2 shift lever wasn't fully clicking into the neutral position (it would be close but was still hanging up somewhat, preventing a shift over into the 3-4 gate). Was able to adjust that rod a little shorter and address that issue, but now, randomly, it appears that on the 2nd to 3rd shift, the 3rd-4th shifter rod is binding and it either takes a ton of effort to slam it into 3rd gear or it will free up if you go into 4th gear from 2nd instead of 3rd. It only binds like this 1 out of 6-8 times of going through the gears (I'm doing this all with the engine not running at this point).

I popped the rods off the shifter and it seems the 1-2 and 3-4 shift lever rods on the actual transmission take excessive effort to get to click into position. I'm wondering if I should be pulling the side cover and inspecting the shifter forks- can you adjust these at all to free them up? What should I be looking for?

Any tips would be helpful.

Nick

What viscosity oil do you have in the trans?

Too heavy and the synchros bind up and prevent shifts...