Transmission choices?
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Senior User
Joined: Jul 2007
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Transmission choices?
I just got my 300 finished and running good but it is time for the transmission. I have been thinking of rebuilding it. It is a 3 speed manual, use to be on the tree but have it converted to floor. It is in a 1975 ford F100 shortbed 2wd. It is mostly a weekend cruise around truck, I have to run super and gas mileage is really not an issue. I was wondering what the best transmission would be for my set up. I want to keep it a manual. Maybe more of a cruising transmission. I would like to put a 4 speed in but, I think all the truck ones are granny gear first. I really dont know that much about the transmisssions and compatiability. I think my rear end is 3.23 or something of the such. any information would and could help thanks
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Joined: Apr 2004
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"Cruising"? As in driving around the highschool, or driving long distances?
If you reconsider an automatic:
C4
C6
AOD (has OD)
Manual:
The 4 speed granny low truck transmissions.
The 4 speed OD transmissions used late '70s to mid '80s. (4th is OD)
The 5 speed OD Mazda transmission used '87 and up behind the 300 in half tons. (uh, requires hydraulic clutch...)
The 5 speed OD ZF HD trans used '87 and up in 3/4s and up. (same juice clutch issue)
The 4 speed toploader performance trans from the mid '60s to early '70s. First will be a little tall, (2.78) but the gears are close and they shift real purdy....
The 5 speed OD T5 trans from a V8 Mustang. Requires adaptor or different bell.
Domestic Truck Tranny Guide
David Kee Toploader Transmissions, Inc.
Modern Driveline - T5 / TREMEC TKO Transmission Conversion - 5 speed & 6 speed solutions to swap your Ford Mustang, Falcon, Cobra, Hotrod into Overdrive! Performance Parts
TCI - Ford AOD, AODE and 4R70W
Shop around....
If you reconsider an automatic:
C4
C6
AOD (has OD)
Manual:
The 4 speed granny low truck transmissions.
The 4 speed OD transmissions used late '70s to mid '80s. (4th is OD)
The 5 speed OD Mazda transmission used '87 and up behind the 300 in half tons. (uh, requires hydraulic clutch...)
The 5 speed OD ZF HD trans used '87 and up in 3/4s and up. (same juice clutch issue)
The 4 speed toploader performance trans from the mid '60s to early '70s. First will be a little tall, (2.78) but the gears are close and they shift real purdy....
The 5 speed OD T5 trans from a V8 Mustang. Requires adaptor or different bell.
Domestic Truck Tranny Guide
David Kee Toploader Transmissions, Inc.
Modern Driveline - T5 / TREMEC TKO Transmission Conversion - 5 speed & 6 speed solutions to swap your Ford Mustang, Falcon, Cobra, Hotrod into Overdrive! Performance Parts
TCI - Ford AOD, AODE and 4R70W
Shop around....
Thread Starter
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Senior User
Joined: Jul 2007
Posts: 105
Likes: 1
I guess cruising wasnt the right word, sorry. probably more for performance. I actually would like a taller first gear.The way I feel is my first gear right now is a little low, second is perfect and 3rd seems to tall. It works but I guess I thought I would ask on here before rebuilding the 3 speed. thanks
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