3sp manual transmission differences

[Jess Luvs 2Romp]

I have a 73, and sadly, i have to rip apart the tranny on my own cuz i'm broke as a jeep ;D but anyway, i found this site http://www.greatnorthern.net/~fearme/tech/tech.html

it's for a 68 3spd manual.. will it be the same for my 73?

thanks, Jess

 

[DownhillManiac99]

I think there were only two manual 3 speed trannys. The first was the RAT which had a (from 1st to 3rd) 3.41, 1.86 and 1.00 gear ratio. Second was the RAN which had 2.99, 1.75 and 1.00 ratio's.

 

[Jess Luvs 2Romp]

are they the same basic mechanical design inside? that's all i'm really concered about... i don't wanna tear into and find extra or missing parts.

 

[don parris]

the rat is about 1/2 longer than the ran but will work if you use the whole trans the gears are a little different due to the gear ratio also the syncros are different the rat is a little stronger trans

 

[wildbill]

;D ;D ;D If you use the trans and adapter it will work. All V8's will work just the use the adapter that comes with the trans you are useing good luck. %) %) %) Bill %)

 

[jbeyer]

are you going to rebuild yours? it may be easier to just buy another for 25 bucks. they are all over the place and really cheap. thats why ive got 3 myself.

 

[OldieTwoShoes]

i'm broke as a jeep

best simile EVER!!!!!!!!

 

[Skuzzlebutt]

The diagrams in the '68 manual are good for both the RAT and RAN versions of the model 3.03 transmission.
The gear ratios mentioned earlier are actually the differences between the 6 and the 8 cyl versions. The RANs that came with the 289s ahd the same ratios (2.99 1st) as the RATs that came with 302s. The versions that came with 6 cyl engines had the lower 3.41 1st.

 

[mtkawboy]

Will the Econoline RAT version work in the bronco if you change the tailshaft? I can pick one of them up locally and rebuild it if it will. The second gear synchro is going in my 68 289.

 

[Bart]

A long time back (1970s) I pulled a 200 ci six out of a 67 Ranchero and put in a healthy 390!!! The input shalf of the 3.03 (RAT) needed to be ground down some to bolt up to the bell housing, but the darn thing stood up to the 390. The spider gears didn't but the trans did. And you'll have a better first gear ratio.

 

[don parris]

The diagrams in the '68 manual are good for both the RAT and RAN versions of the model 3.03 transmission.
The gear ratios mentioned earlier are actually the differences between the 6 and the 8 cyl versions. The RANs that came with the 289s ahd the same ratios (2.99 1st) as the RATs that came with 302s. The versions that came with 6 cyl engines had the lower 3.41 1st.

the rat trans that came in pickups and broncos all had the3.41 first gear the ran usualy came in cars and light duty vans and had the2.99 gear I rebuilt my 77 just this summer and put in new input gear and cluster gear and it is 3.41