I have a '76 heavy 3/4 ton, D 200, 2 wheel drive.
I was thinking of an A-833 overdrive or maybe a 518.
However a member mentioned the NV4500.
My truck has a 318 with the granny gear 4-speed with I believe 3:55 rear gears.
What I am wondering is, would the 4500 be a better match and what are the pluses and minuses?
Is the 4500 easier to find and what sort of prices are they going for?
Will I need the hydraulic clutch or can I use the one I have.
What about the Bell-housing?
How long is the 4500, could I use the original 2 piece drive shaft or should I use the one from the donor truck.
Will I need something made?
I do use the truck for hauling on occasion, so I assume the heavy duty unit would probably be my best bet.
I would like to get the RPMs down at cruise,
and better mileage wouldn't hurt.
Kinda long, but I know this is the place to get answers.
Thanks to all for any help.