4Spd Tranny Question
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4Spd Tranny Question
I was in the junk yard today and found a 81 F150 with a 300 6 cylinder and a 4 speed transmission. I currently have a 80 F100 with a 351w and 3spd 3.03. I want to know if the 4 speed will fit my bell housing and if this is a good idea. I couldn't get any ID numbers off of the tranny because it was covered in grease. I can say the shifter was mounted closer to the driver and off center to the left and had linkages. I have seen other 4 speeds where the shifter was in the center almost under the dash and didn't use a linkage. Anyone have any input on what tranny I found and if it could work?
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Joined: Nov 2007
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From: Denver Metro Area, CO
How do you know you have a 351W? Ford didn't begin installing those engines in
these trucks until MY1983:
http://web.archive.org/web/200702211...history04.html
If you really have a 351W, it didn't come that way from the factory.
these trucks until MY1983:
http://web.archive.org/web/200702211...history04.html
If you really have a 351W, it didn't come that way from the factory.
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Joined: Nov 2007
Posts: 22,415
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From: Denver Metro Area, CO
OK, cool.
I have no idea what tranny you found; the Borg Warner T18 is what's commonly referred to
as a "top loader" and there are no shifter linkages, the gear shift is inserted directly into the
top of the transmission. I think it's the New Process NP208 that's the other common
4-speed during that time but I don't know much about it, I'd have to look in the book. You
say you found a 4-speed with a shifter linkage, dunno what that is....
Regardless, I think all transmissions share the same orientation of the attaching bolts &
spline counts, allowing any tranny to mate up to any bell housing. It'd sure be nice if the
bell-housing-to-engine oreintations were all the same....
I have no idea what tranny you found; the Borg Warner T18 is what's commonly referred to
as a "top loader" and there are no shifter linkages, the gear shift is inserted directly into the
top of the transmission. I think it's the New Process NP208 that's the other common
4-speed during that time but I don't know much about it, I'd have to look in the book. You
say you found a 4-speed with a shifter linkage, dunno what that is....
Regardless, I think all transmissions share the same orientation of the attaching bolts &
spline counts, allowing any tranny to mate up to any bell housing. It'd sure be nice if the
bell-housing-to-engine oreintations were all the same....
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Joined: Aug 2009
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From: Elmma, WA, USA
That is the SROD. It is a 3 speed with overdrive. It is (was) made by Tremec. I have one in my 1980 F150. I get 20-22 mpg.
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Will it fit a bell housing for a 351w? I have heard mixed reviews on that transmission. How good is it?
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From: Denver Metro Area, CO
Moderator
Joined: Nov 2007
Posts: 22,415
Likes: 92
From: Denver Metro Area, CO
You might also search the Clutch/Transmission/Differential/Axle/Transfer Case forum
for "hurst shifter":
https://www.ford-trucks.com/forums/s...archid=1083642
for "hurst shifter":
https://www.ford-trucks.com/forums/s...archid=1083642
