decode tranny??

Reply Subscribe

Thread Tools

Search this Thread

Mar 16, 2007 | 07:35 PM

Dean757

Thread Starter

Racer

Joined: Oct 2006

Posts: 489

Likes: 0

From: ormond beach florida

decode tranny??

gm transmission on left side number is 3884685,rt side 3925660, tailshaft 88b28. Just purchased 63 swc. reverse top far left. Lowest gear is bottom left, next lowest gear BOTTOM right ,highest gear = top right of shift pattern. Suspect 3 speed transmission with 4 speed shifter??? or faulty shifter with 4 speed?

Last edited by Dean757; Mar 16, 2007 at 07:38 PM. Reason: correction

Mar 16, 2007 | 08:22 PM

knight37128

Le Mans Master

Joined: Feb 2006

Posts: 6,048

Likes: 5

From: "cutesy" TN

http://www.5speeds.com/muncie2.htm

88b28 : Should be P8B28
P = Muncie
8 = 1968
B = February
28 = 28th (second to last day of the month) [Leap year]

Mar 16, 2007 | 09:56 PM

Dean757

Thread Starter

Racer

Joined: Oct 2006

Posts: 489

Likes: 0

From: ormond beach florida

Quote:

Originally Posted by knight37128

http://www.5speeds.com/muncie2.htm

88b28 : Should be P8B28
P = Muncie
8 = 1968
B = February
28 = 28th (second to last day of the month) [Leap year]

Thanks, any idea if it is a 3 speed or 4 speed with bad shifter/

Mar 17, 2007 | 08:10 PM

JohnZ

Team Owner

Joined: Oct 2000

Posts: 38,897

Likes: 1,926

From: Washington Michigan

Quote:

Originally Posted by Dean757

Thanks, any idea if it is a 3 speed or 4 speed with bad shifter/

It's a Muncie 4-speed, and either the linkage or the shifter (or both) are screwed up. It SHOULD look like the photo below.

Attached Images

Mar 17, 2007 | 10:12 PM

Dean757

Thread Starter

Racer

Joined: Oct 2006

Posts: 489

Likes: 0

From: ormond beach florida

Quote:

Originally Posted by JohnZ

It's a Muncie 4-speed, and either the linkage or the shifter (or both) are screwed up. It SHOULD look like the photo below.

Thanks. It has indy embossed on the side of the shift lever. I plan on purchasing a new shifter before I remove the old one. What brand of shifter do you recommend? Dean

Mar 17, 2007 | 10:39 PM

knight37128

Le Mans Master

Joined: Feb 2006

Posts: 6,048

Likes: 5

From: "cutesy" TN

Quote:

Originally Posted by Dean757

Thanks. It has indy embossed on the side of the shift lever. I plan on purchasing a new shifter before I remove the old one. What brand of shifter do you recommend? Dean

Hard to beat the factory shifter.

Mar 17, 2007 | 10:42 PM

Don SSDD

Racer

Joined: Jan 2005

Posts: 384

Likes: 0

From: Nova Scotia

Indy is a name on a Hurst shifter, a very good one if not completely shot. Check it out and see if the rods etc are hooked up correctly.
Does it have the 2 bolt mounting for the shifter handle- you can change it to a repro Corvette style. The Indy is a short straight shift handle.

Don

Mar 18, 2007 | 09:43 AM

Dean757

Thread Starter

Racer

Joined: Oct 2006

Posts: 489

Likes: 0

From: ormond beach florida

muncie 4 speed /shifter problem

Thanks guys. Now I know it is a 1968 muncie 4spd. When it was on the lift for the oil change, the mechanic shimmed the transmission mount due to rubber mount deteriorated allowing linkage to contact frame. He thought that would fix problem. I never paid attention to connections on the shifter arms. I will get it back on a lift and verify. Concern now is : Are all 4 gears good. Or the rods bent/ shifter gates bad. Seems strange that it ended up with functional shift pattern as described. Previous owner info not available.