This is topic Tranny swap in forum Tech Talk at Northern California Ford Owners  .


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Posted by SUMO (Member # 8553) on :
 
I got a 1973 f100 with a 4 speed manual and I wanna swap it out to a 5 or 6 speed. So my question is what are my options for trannys?
 

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Posted by Blow_U_In_Reverse (Member # 12298) on :
 
Depends on your budget.. cheapest option is t5 swap..
 

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Posted by SUMO (Member # 8553) on :
 
So the T5 will hold up just fine? The truck has a 360
 

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Posted by Blow_U_In_Reverse (Member # 12298) on :
 
0o shit didnt realize u had a 360.. yes a t5 should be fine still as long as the motor is fairly stock but it wont be a very big improvement compared to the 4 speed besides that extra gear.. You will need an aftermarket bellhousing and matching clutch armwith most 5 speed & 6 speed transmissions, and if you're going to spend the money on aftermarket bellhousing and stuff then i would just look into a tko.. but once again, it all just depends on the budget.. i think theres a company that also makes parts to swap a t56 into there.. ive been doing research on the same topic for my dads f100..
 

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Posted by Blow_U_In_Reverse (Member # 12298) on :
 
One thing to keep in mind is fitment in the tunnel and shifter location.. you might need to take a hammer to the tunnel and move the shifter hole down a couple inches.. specially if you decide to go with a t56 or 3350/tko..
 

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Posted by SUMO (Member # 8553) on :
 
Ok thanks for the info. Pm if you find the website for the t56 swap
 

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Posted by Blow_U_In_Reverse (Member # 12298) on :
 
Dont remember the exact company but it was on Jegs.. they have all the stuff for swapping a tko, t5, t56, 3550, etc..

[ 2015-05-21, 06:35 PM: Message edited by: Blow_U_In_Reverse ]
 

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Posted by wilit (Member # 3367) on :
 
I don't think a T5 from a Mustang will work. The shifter sits at the end of the tailshaft and will put the shifter under the seat. Your truck probably has a NP435 or T18 4 speed with the shifter in the middle of the case body. You probably want to look for an M5R2 out of an 80's-90's F150/Bronco. Or a T5 out of an S10 would probably work, but you'd either have to swap the input shaft to a 10 spline or change your clutch to a 26 spline.

Here's an M5R2


Chevy S10 T5


EDIT: Shit, you have an FE motor. Forget the M5R2.

[ 2015-05-21, 08:29 PM: Message edited by: wilit ]
 

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Posted by Blow_U_In_Reverse (Member # 12298) on :
 

quote:

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Originally posted by wilit:
I don't think a T5 from a Mustang will work. The shifter sits at the end of the tailshaft and will put the shifter under the seat. Your truck probably has a NP435 or T18 4 speed with the shifter in the middle of the case body. You probably want to look for an M5R2 out of an 80's-90's F150/Bronco. Or a T5 out of an S10 would probably work, but you'd either have to swap the input shaft to a 10 spline or change your clutch to a 26 spline.

Here's an M5R2


Chevy S10 T5


EDIT: Shit, you have an FE motor. Forget the M5R2.

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quote:

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Originally posted by Blow_U_In_Reverse:

quote:

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Originally posted by wilit:
I don't think a T5 from a Mustang will work. The shifter sits at the end of the tailshaft and will put the shifter under the seat. Your truck probably has a NP435 or T18 4 speed with the shifter in the middle of the case body. You probably want to look for an M5R2 out of an 80's-90's F150/Bronco. Or a T5 out of an S10 would probably work, but you'd either have to swap the input shaft to a 10 spline or change your clutch to a 26 spline.

Here's an M5R2


Chevy S10 T5


EDIT: Shit, you have an FE motor. Forget the M5R2.

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Hes right.. thats what i meant by the shifter location but didnt get specific because i figured you did your research on that.. even the t56 has to be one from a chevy ls1 or viper..

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Good to know. I didn't know you could relocate the shifter in a T56.


 

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Posted by SUMO (Member # 8553) on :
 
Cool stuff guys thanks for all the advice
 

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