correction. now need 3 speed trans @ clutch fork with rod. 1957 88 3 on the tree. chornbeck

 

This is going to be a very difficult find. If/When you do find it, please share with us:
1) The source
2) The part #'s
3) The cost(s)

I am attaching/including some info on the tranny that I have collected. I collected it because my 1960 Olds had a factory stick (9-bolt top cover)

Olds (GM) 3-speed Manual Trans Specs

Either a Dearborn (Ford) or Buick product?
Ford 3.03 RAN/RAT (toploader) - 9-bolt cover
14 page detailed Dearborn Transmission Service Manual
Covers the Three Speed Transmissions used by GM on all the GM cars of the 60's and 70's era.
[http://carburetor-manual.com/dearbor...al-p-310.html]

Type Helical
Drive Rear wheel drive
No. Of Gears 3
Gear Ratios
1st 2.15 to 1
2nd 1.37 to 1
3rd 1 to 1 (Direct)
Reverse 2.28 to 1

Clutch Type Single plate dry disc
Clutch Size 11 inches


MUNCIE TRANSMISSION
The "SM" in the transmission's designation stands for Syncrho-Mesh, in the tradition of other GM gearboxes, though we have heard that it may refer to Stewart - Muncie, a merged transmission division of GM.

Engine Compatibility and Adaptability - GM
As the reader will conclude, the Chevrolet and General Motors SM420 will marry directly to a GM style bellhousing. This includes early (1955-1967) Chevrolet / GMC truck, Chevy car, Buick, Oldsmobile and Pontiac bellhousings.

1956-57 M13 B-0-P H-D 3-speed (6-bolt top cover)

1956-57 Heavy Duty 3-speed Standard Shift Transmission.
* Appears to be it? See http://www.pontiacsafari.com/L1Garag...ions/index.htm

Pontiac installed the Buick heavy duty 3-speed transmission in 1956-57. The heavy-duty trans is easily distinguished by it's large physical size and 6-bolt top cover. On a scale of 1-10, with "7" being a Muncie M22, the Heavy-Duty B-O-P selector is rated as an "8"...
The physical size of the sliding gear is ≈ 1", which is probably too big. The 1956-57 Pontiac H-D three-speed was stronger than any *other 3-speed ever mass *produced, with the exception of the Ford "Top Loader".* This trans is nearly unbreakable, but the large size of the gears with their nearly straight-cut teeth, slows shifting @ rpm. I have used this trans behind a 450" JBP motor that produced 485 hp @ rpms. No problems, since the big stroker's power falls off at 5,100...


1958 and Later Heavy Duty 3-speed Standard Shift Transmission.

The Buick trans was superseded in 1958 by the B-W T85, which is not quite as strong. According to John Sawruk, the noise and/or gear whine of the old Buick brought about it's demise. B-W T85s have 22O helix-cut gears, making them quiet as a mouse. One of the differences between M22s and M20-21s is that the Muncie engineers went back to Buick thinking, removing the high-helix gears. So, if you've ever ridden in a car with an M22, they sound a lot like the old Buick trannies...


M13 B-W T85 H-D 3-speed


Good luck, and report back!

 

Dave, The trans that the OP seeks is a Buick built transmission.
It shares no relation to either Ford or Borg-Warner transmissions.
The complete trans would have to come from a 57 thru 60 Oldsmobile. Because the tailshaft is unique to those models.
Some other component parts including gears and some main cases were shared with the following;
51 thru 64 Oldsmobile
56 and 57 Pontiac
39 thru 60 Buick

 

I have a 3-speed '58 manual trans and also have the clutch fork. Best to call me. John 414-761-3552.

 

Charlie,

The pic is of the tranny that was in my 60 Olds from the factory. Does that make it a Buick tranny? I don't know.

Also, the info in the text of my previous msg does in fact refer to "the Buick heavy duty 3-speed transmission."

 

Yes Dave , that is a Buick built "Roadmaster" transmission.