I replaced the stock three speed manual in my 67 a-body with an untried four speed, "It oughta just bolt in". Trans came with oldish Hurst shifter. Problem is sometimes I have second gear, upshift or downshift, and sometimes won't go into second. Everything else works ok. Does anyone with experience in this area have a feeling of whether this transmission is junk? It seems strange that it sometimes goes into gear and sometimes not.

Check your shifter rods for stripped threads. My friends son was having the same problem with his Cuda and would not hold adjustment. Just a thought..........

I think you're right to think shifter, Romeo Furio. I took the car out today, and found I can always get it into second if I shift into fourth and then over into second. Shifter is old, but threads on adjusters are not the problem, since I had to torch them to get the cams to adjust out to the right position, so that everything is in neutral when a pin is in all the line-up holes.

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/6 '67 Barracuda convertible, electronic ignition, 4-OD, street cam, SBP KH discs, 3.55 SG 7.25" 1" t-bars. Bilstein.
340 '67 fastback, Doug Nash 5-speed.
1988 Toyota pickup work truck

sounds like synchronizers are bad...

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65 Coronet, 4 bbl, .060 over, mild cam.
66 Valiant, Black, 3spd, Hyperpak, headers.
works in progress...

That's what I'm afraid of.

OK transmission has been pulled. Now should I monkey around with this myself or is this a job best left to a "qualified repair shop" as the repair manual suggests. How much should I expect to pay for a rebuild? Or is a junkyard replacement the way to go? Opinions welcome.