You definitely have a clutch problem, either the linkage or the clutch itself. If you let the engine catch up with the transmission you can shift without the clutch but it needs to be fixed.

 

Haven't had time and weather cooperating enough to test out the truck. It's being parked till spring as I don't have quite enough faith in it this winter to drive it with the Bias Ply still on it and I'd like to do dry road testing to make sure everything is up to par before I really test it. Will try to give updates but it may be a while. As of now I'm fairly certain my lockout spring is screwed up and I'm accidentally going into R instead of 3rd. But thatnks everyone for the suggestions!

 

OMG still has tires that our Bias~~~ Ply Lordly lord man, I would not be out on any roads with any fast traffic.

But winter will make them bumpy until they warn up a little.

May be it's saver being cold then hot as, I know tires are at there weakest in hot weather.

Hell we've lived through the days of old skool Bias Ply Tires with tubes in them from almost day one of the vehicles for sure may be before early teens + having the tube tires. So got for a save drive then fewer vehicles on the road. But old Bias Ply Tires of today must be just old weather cracked from the ozone & the sun.
Orijch

 

The truck got stuck in the grass at my house with an inch of snow on the ground LOL but that's just a bad mixture of old tires, open diff and no weight in the bed. Only weight that was in it was my new temporary steel rims

 

I hardly use the clutch when moving too. Doesn't really help much to use it.

 

UPDATE: 3rd is no longer grinding. Took er for a spin around the neighborhood again and I found out I was trying to shift into Reverse. I wasn't thinking about it when I decided to shift and went over too far. But it's still disappointing how slow I have to be going to shift back into 2nd. Talk about no engine braking

 

Any down shifting you must give the engine some RPMs to get it back into gear just like the old motorcycles were. Oh these trucks our old like old skool!
Orich