Opel GT Forum banner
1 - 8 of 8 Posts

· Registered
Joined
·
5 Posts
Discussion Starter · #1 ·
The tranny is jammed on my '69 GT (1.9l). Damage is to the spline end of the main drive. Any one with experience in repair or know where I can buy 1 (new or used)?

If push comes to shove, I'd be in the market for a complete transmission.

Wayne
Lancaster, PA
 

· Banned
Joined
·
3,910 Posts
Did somebody say tranny? I would like you to have a different tranny for your car almost as much as you would. I still have more good trannys than I want or need. PM me or Email and I can hook you up with a good one. I suppose I could pull a main shaft too. Tell me exactly which shaft is messed up, input, output, counter or part of the gear cluster.
 

· Registered
Joined
·
5 Posts
Discussion Starter · #3 ·
need main drive for 69 -70 GT

thanks for the reply, Grant. I haven't figured out how this Forum response system works so would you please email me at [email protected] so I can find out what you have. my home phone is 717 569 1415 if you want to call me collect.

Wayne Murphy
Lancaster, PA
 

· Registered
Joined
·
6,344 Posts
Wayne, a quick and dirty way to send a PM or e-mail to a person is to click on the poster's underlined name at the top left of the thread. A popup window will come up with several options to send a message to that person. HTH.

Ron
 

· Über Moderator
Joined
·
6,785 Posts
Wayne said:
The tranny is jammed on my '69 GT (1.9l). Damage is to the spline end of the main drive. Any one with experience in repair or know where I can buy 1 (new or used)? If push comes to shove, I'd be in the market for a complete transmission.
Wayne
Lancaster, PA
As a warning, some of the internal pieces on early (pre-'71) CIH transmissions are quite different from the later (1971 to 1975) models. I ran into this when I re-built Kat's '71 GT tranny, and had hoped to use the internals from a spare '70 tranny she had. On her '71 tranny, the pilot bearing had piled up, which in turn piled up the front main tranny bearing, which in turn piled up the inner needle bearing, where the input shaft and main shaft run together inside the tranny case. Well, one caused the other which caused the other. Anyway, I was able to use the old style input shaft (the one that sticks out the front of the transmission and is driven by the clutch disk) in the newer style housing, but the main shaft is unique. Mainly it's the speedo gear that is different, as well as the 1st-2nd gear synchro.

And it's not so simple as to just swap the transmissions. Although they are essentially the same (aside from the key internal pieces I just mentioned), the speedo drives are on different sides, and the early model uses a right angle gear reduction drive. So the later speedo cable won't reach the early speedo drive. It might work the other way, but something tells me the speedometer ratios are also different.

HTH
 

· Banned
Joined
·
3,910 Posts
Please correct me if I'm wrong again. I believe the early tranny speedo drive was pinned in place and the later used a bolt and small metal keeper.
 

· Über Moderator
Joined
·
6,785 Posts
nobody said:
Please correct me if I'm wrong again. I believe the early tranny speedo drive was pinned in place and the later used a bolt and small metal keeper.
Yes, that is also true. But the worm gear on the main shaft that the speedo drive runs on is also totally different between the early and later versions. The early model uses a metal gear, and the later a plastic gear, but they are NOT interchangeable. Nor can the tail shaft housings from one version be used with the other version's main shaft (if you want a functioning speedometer)
 

· Administrator
Joined
·
10,467 Posts
Wayne - The Carlisle Import show is next week. (Carlisle is a couple of towns away from Lancaster for you non-PA folks) There will be a bunch of Opels there. I'll look to see if the spare trans I have is the early one or not.
 
1 - 8 of 8 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top