OVERDRIVE TRANSMISSION
 

I just took my 68 Fury to its first out of town show and its very first trip on the freeway.
Now, I know I'm used to driving stuff with o/d trannies but it seems that the old Plymouth is haivng to rev a little too much to get to the 60 mph mark.
Is there a MoPar 4spd o/d transmission that will swap into my Fury and replace the T/F behind the existing 318 ..............and what vehicle(s) should I be on the look out for as donors to get the easiest fit??

Cheers.
Terry.

what are you running in rpm are you running at 60 mph. also what is the gears in the rearend?

here is a rundown on how to swap a a-518
http://www.transmissioncenter.net/SwapInformation.htm

Imma check that out too, I'd love to have one more gear :)

I haven't put a tach on the car to be honest but I'd have to guess I'm in the 3500 range.
3500 doesn't sound like a lot but when my Mustang turns about 1900-2100 at 55-60mph, it sounds like the Fury needs TWO more gears.
The rear is the stocker which I'm guessing will be in the 3.23 range.
Bearing in mind I have a much taller tire with my 20 inch rims which replaced the stock 14 inchers, I was expecting a few less revs and an overdrive effect from this alone as the tires are about 3 inches taller.
I'm not sure I wanna be changing rearend gears since it's not as easy as doing those in the 9-inch on my racecar and I don't wanna get into a rebuild on my 40 year old rear axle.
I'll check out that swap link though............

id say 3500 with that tall of tire is a bit lower that 3.23.. just a guess.. if your rear is a 8-3/4 its just as easy as a ford 9 inch.. both my 66 sport furys had 2.73s (open)in them. they both were the wide (A) 318. i switched it out to a 440/727 with 3.94 rear and im pushing 3600 @ 60mph but with 225/60/15........but i do know what you are saying my 05 dakota is around 1600 at 60.. with the factory 17 inch tire