Ford truck question

Ellis Kinney · Mar 22, 2012

To get on topic I have three Farmall M tractors. Now for the question. 1981 Ford, 300 inch, F-100.Three speed plus O/D transmission. Ford used two transmissions that are similar, The Aluminum case SROD three speed plus O/D, and the Aluminum case RTS three speed plus O/D. I know that I have the aluminum case so that eliminates the other transmissions. How do I know which one is in my truck? Maybe someone out there used to work for Ford and can answer my question. Thanks in advance. Ellis

BCnT · Mar 22, 2012

look on the drivers side door post...should be a data tag with codes for different components...the code under trans will be the one you need...any ford dealer should be able to tell you exactly what trans your truck came with if you give them code number.

Janicholson · Mar 22, 2012

Door plate information would be easiest. Then a call to the service manager.

Jim

wisbaker · Mar 22, 2012

The VIN number should also tell you if you can track down a Ford decoder for that model year. If you still have the door tag/conformation sticker the trans code is their- a Ford Dealer or online sources will identify. Remember this truck is 30 years old it might of been swapped so once you think you know what you have you might still need to crawl under it and verify.

Ellis Kinney · Mar 22, 2012

Thanks for the comments, why didn't I think of that. Ellis

Brian G. NY · Mar 22, 2012

I have a 3 spd top loader tranny that came out of a "78 F-150 short box truck.
It is cast iron and looks a lot like your
typical top loader 4 speed. I have the shifter as well and the linkage is external similar to a straight top-loader 4-speed.
I thought (but you know what thought did) that the trucks all used the cast iron version.
My son"s "83 (early) GT Mustang had the aluminum 4 speed O.D. with the integral shifter.
He "blew" that one and put a straight top loader 4-speed out of a "71 Torino in it"s place.

GVSII · Mar 22, 2012

(quoted from post at 09:28:37 03/22/12) To get on topic I have three Farmall M tractors. Now for the question. 1981 Ford, 300 inch, F-100.Three speed plus O/D transmission. Ford used two transmissions that are similar, The Aluminum case SROD three speed plus O/D, and the Aluminum case RTS three speed plus O/D. I know that I have the aluminum case so that eliminates the other transmissions. How do I know which one is in my truck? Maybe someone out there used to work for Ford and can answer my question. Thanks in advance. Ellis

Seems to me(could be all wrong) that the RTS has an external linkage,SROD dosen't.

wisbaker · Mar 22, 2012

SROD single rail overdrive- if you have no external linkage that's the item.

Ford truck question

Ellis Kinney

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BCnT

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Janicholson

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wisbaker

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Ellis Kinney

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Brian G. NY

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GVSII

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wisbaker

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