OVERDRIVE
 

Hi' i'm new to this stuff so bare with me. I have a few old mopars 65 Belvedere with 440 and 4 speed also 64 fury convertible thats not done. My love is the belvedere. I'm looking for some info it's 3:90 gears and runs about 3200 rpms at 55. I'd like to put an overdrive in it. I looked at TKO 5 speeds but heard they don't like to shift over 6 grand not that I do it all the time but I do and if I'm going to spend $3000 on a trans it should do that. Also looked at gearvender about same price and I like the gear spliter. I have heard the 833-A is the best trans you can get. I would appreciate any info thak's

Welcome!

I've used this Richmond 5 speed with a 440 no prob .... on the higher $$$ side but a really tuff gearbox

http://www.jegs.com/i/Richmond-Gear/...oductId=773418

but doesn't the richmond not have an overdrive?

1st 2.89 or 3.33, 2nd 1.89, 3rd 1.31, 4th 1.00, 5th .77

But would the Richmond fit with out altering the floor ?

I had to on the A body it went into but only because it was an auto to start with, yours I don't honestly know

... or change your rear gear to a 3.73 or 3.55, still get a good launch and drop the rpm at 55 - fraction of the cost that a new trans is going to be

Welcome! I have a 67 Belvedere GTX clone with the A833 4 speed. There are two flavors, the 18 spline shaft and the 23 spline shaft. The 18 spline is the more stout of the two. I also thought about an overdrive trans, but just could not spend that much money, so I got rid of the 3:91 gears and went to 3:55 which is working out fine for me at less than a third of the cost of an OD trans.

I have the 23 spline it's seamed to hold up. I had broke a lot of things two 8 3/4 and a drive shaft. I know a lot of people arn't going to like this but I put a ford 9 inch in and that held up. I wanted the dana but I had the 9 inch. anyways you are probably wright with the gears. I just think it would be nice to have the best of both wolds.

nothing wrong with the 9" John use them myself .... got 1 for sale right now
40” wide, 5:13/spool, 33 spline axles..... lol want it

Welcome to the forum.....