1963 T-10 Transmission Question

[Mark P.]

The photo on the top is the stamping on a 1963 Borg Warner T-10 transmission. WE2731 translates to W - Warner Gear, E - May, 27 - 27th day, 3 - 1963, 1 - first shift. That is May 27, 1963. That date is late for a T-10 in a 1963 Corvette I have been told. There is no VIN and I think the date stamp is upside down. The photo on the bottom is of another 1963 Corvette T-10 with a VIN. The fonts between the 2 photos look different.

Eckler's has posted this "The Muncie transmission began replacing the Borg-Warner 4-speed transmission on Wednesday, February 6, 1963, when the first Muncie 4 speed transmissions were shipped to the Baltimore Final Assembly Plant for installation into Chevrolet cars. It was thought that the Corvette received the Muncie transmission first, but this has been disproved by Muncie shipping records. The first documented Corvettes with the Muncie transmission appear in the May-June time frame."

The engine stamp pad for the car with the WE2731 transmission has F0603RE for 340hp manual transmission built June 3, 1963. The car build date is June 11, 1963. The WE2731 date works with the engine and car build date.

Japan T-10 1963 Corvette.jpg1963 T-10 Corvette Stamp.jpg


Does the WE2731 transmission look like it was not original for the 63 Corvette it is in since there is no VIN and the font is different ?

Did passenger car T-10's have VINs in 1963 ?

[Rick H.]

Re: 1963 T-10 Transmission Question

My understanding was that Muncie transmissions weren't installed in Corvettes until late in the 1963 production run (May or June 1963), not early Feb 1963 as your Ecklers information states.

[Bruce G.]

Re: 1963 T-10 Transmission Question

My '63 built May 15th has a factory date coded Muncie. Bruce

[Kent S.]

Re: 1963 T-10 Transmission Question

My April 2 '63 has a B-W.

[Mark P.]

Re: 1963 T-10 Transmission Question

Does that seem unlikely that a car built May 15, 1963 has a Muncie and a car built June 11, 1963 has a B-W ? I don't have a 1963 TIMJG to check if a June 11, 1963 car would pass judging with a B-W transmission. I would appreciate someone checking that.

Thank you Rick, Bruce and Kent for your posts.

[Bruce G.]

Re: 1963 T-10 Transmission Question

7th Edition JG "A B-W unit was installed in '63 models up to approximately VIN 15000 and a Muncie unit used for the remainder of 1963 and all of 1964 production. To answer your question regarding a B-W being factory installed on a June built car I can't say.................but who knows as they concluded '63 production what parts were used. Maybe a judge can chime in with comments but I doubt anyone can say with certainty your B-W trans was not factory installed.

[Mark P.]

Re: 1963 T-10 Transmission Question

Thanks Bruce. Since the VIN is 30837S117128 which is 17128 then the car seems too late to still have a BW T-10. Anyone know how a B-W T-10 would be judged in this VIN ?

[Joe L.]

Re: 1963 T-10 Transmission Question

The photo on the top is the stamping on a 1963 Borg Warner T-10 transmission. WE2731 translates to W - Warner Gear, E - May, 27 - 27th day, 3 - 1963, 1 - first shift. That is May 27, 1963. That date is late for a T-10 in a 1963 Corvette I have been told. There is no VIN and I think the date stamp is upside down. The photo on the bottom is of another 1963 Corvette T-10 with a VIN. The fonts between the 2 photos look different.

Eckler's has posted this "The Muncie transmission began replacing the Borg-Warner 4-speed transmission on Wednesday, February 6, 1963, when the first Muncie 4 speed transmissions were shipped to the Baltimore Final Assembly Plant for installation into Chevrolet cars. It was thought that the Corvette received the Muncie transmission first, but this has been disproved by Muncie shipping records. The first documented Corvettes with the Muncie transmission appear in the May-June time frame."

The engine stamp pad for the car with the WE2731 transmission has F0603RE for 340hp manual transmission built June 3, 1963. The car build date is June 11, 1963. The WE2731 date works with the engine and car build date.

[ATTACH=CONFIG]120365[/ATTACH][ATTACH=CONFIG]120366[/ATTACH]


Does the WE2731 transmission look like it was not original for the 63 Corvette it is in since there is no VIN and the font is different ?

Did passenger car T-10's have VINs in 1963 ?

Mark------

The fact that the transmission date "works" for the car's build date is irrelevant in my opinion. With no VIN derivative stamped on the transmission I would opine that this transmission started life as a SERVICE transmission.

The only even slightly plausible explanation for it to have been installed at St. Louis is if the car had a failed transmission before leaving the factory and was fitted with another transmission in heavy repair and "slipped by" without a VIN derivative stamping. Given the date of the transmission, though, I doubt this scenario.

[Mark P.]

Re: 1963 T-10 Transmission Question

Thanks Joe. That makes sense.