1964 plymouth valiant Slant six to 340

Thanks for your reply,

Yes the whole suspension will be new. I ordered a whole QA1 front and back with dual adjustable shocks, sway bars and leaf springs. Also got a SSBC USA disc brake kit
nice! that should be a really lovely set up.

Thank you all for your responses.

I did forget to mention that the car will be a 4 speed I have a 64 A833 that Iam currently rebuilding. As far as the driveshaft I have been looking at the QA1 carbon fiber drive shaft. If you know of another brand that is not as expensive that would help
as mentioned above, here is where you're going to run into problems with the ball & trunnion output.

so, you either convert the 4spd to standard output and then run a typical yoke OR you'll need to build a shaft with a conversion joint and a B&T eliminator. which exists, somewhere.

when i did mine ages ago in the 64 dart i wound up using an E-series ford van joint and having the shaft built locally-- i had also swapped the rear to an 8.25 at the time. so in collaboration with the drive shaft shop and some careful measuring on my part i only spent an arm instead of an arm and a leg. so it was mostly painless.

this may be a moot point, but have you looked into summit yet? they have driveshafts and something there may work, or at least get you part of the way there and then you could be on track to have some work done locally. but again, it's highly dependent on what your output is.