Stock Tranny
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Posting Guru
Joined: Sep 2004
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From: Sapulpa OK
Stock Tranny
I have a '52 F1 with a 3 speed on the column.Can any body tell me the transmission number that Borg Warner, or whoever manufactured this transmission, is? I have searched this forum as well as other sites and draw a blank. I'm looking for the T# as in T5 or T3.
I'm trying to locate an overdrive unit for this truck and I may have to piece it together.
Thanks
I'm trying to locate an overdrive unit for this truck and I may have to piece it together.
Thanks
Fleet Owner
Joined: Jul 2004
Posts: 27,294
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From: NM
Well, strictly speaking it's not a B-W tranny. B-W produced some for Ford, but it was to Ford specs and Ford built most of them.
As far as converting it to OD, you'll need the main shaft from the OD trans and it needs to have the same 1-R spline, which shouldn't be a problem. You'll need to drill (machine) a hole in the rear of the case for the reverse lockout shaft (I think that's what it is).
You might be better off getting a hogshead from a big truck, and using that to mate the entire later-style 3-sp w/OD (without integral half-bellhousing) to that. Most OD trannies are likely to have the Car's smaller diameter input shaft, but changing the clutch disc is a lot easier than trying to cobble together the hybrid OD trans.
The real question is, what are you going to do about the crossmember? An OD solenoid lands right in the middle of the crossmember, and sticks so far out I don't think you can cut the crossmember enough to clear it, and still retain the stock brake/clutch pedals. "BTDT" -- this was my plan until I measured things out.
As far as converting it to OD, you'll need the main shaft from the OD trans and it needs to have the same 1-R spline, which shouldn't be a problem. You'll need to drill (machine) a hole in the rear of the case for the reverse lockout shaft (I think that's what it is).
You might be better off getting a hogshead from a big truck, and using that to mate the entire later-style 3-sp w/OD (without integral half-bellhousing) to that. Most OD trannies are likely to have the Car's smaller diameter input shaft, but changing the clutch disc is a lot easier than trying to cobble together the hybrid OD trans.
The real question is, what are you going to do about the crossmember? An OD solenoid lands right in the middle of the crossmember, and sticks so far out I don't think you can cut the crossmember enough to clear it, and still retain the stock brake/clutch pedals. "BTDT" -- this was my plan until I measured things out.
Cargo Master
Joined: Aug 2010
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From: Houston
You could have a Borg-Warner trans if you have a heavy duty 3 speed. I don't remember if the heavy 3 in '52 was column or floor shift in the F-1s. I think the heavy 3 trans were T-87s but I could be wrong.
You need a '49 to early '51 Mercury trans for overdrive since it has the correct bell housing already and ALBUQ F-1 is completely correct as to why you probably don't want to try it.
You need a '49 to early '51 Mercury trans for overdrive since it has the correct bell housing already and ALBUQ F-1 is completely correct as to why you probably don't want to try it.
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Posting Guru
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From: Sapulpa OK
Thanks Ross and 38coupe. I was trying to get by without having to replace the rear end but as you point out thats probably easier and cleaner than rebuilding the crossmember. My tranny is rebuilt already so I guess thats the way to go, with a later model diff.
Post Fiend
Joined: May 2008
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From: Poway, Ca.
You'll find the rear end change out to a 9" a much easier proposition from both a parts and options standpoint. Look for one with a 3.25 ratio - that generally considered ideal, but your plans for the truck and how you use it may vary.
Cargo Master
Joined: Aug 2010
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From: Houston
ALBUQ F-1, the '49 to mid year '51 Mercury used a stamped steel version of the "ring" cast iron bell housing used in the trucks. The transmission case looks very similar to the 40 to 48 car side shifter transmission (and mid '50 to '52 truck column shifted light duty 3 speed) and uses the same clutch throw out bearing set up.
