I'm rebuilding my T56 (first time inside a tranny), I started on it the other day. The only road block I've hit so far is how the hell do you get the dowel pins outta the guide on the main gear selector shaft? You know that little metal piece that follows the guide plate. . . Anyone know how to get that dowel out?

 

Anyone

 

If I understand what you are talking about, I used a small punch and hammer to hammer it out. You will be able to retrieve it once the tranny is completely disassembled. What are you rebuilding on it? Do you have any manuals? I would HIGHLY recommend the specific GM manual for your car. If you cannot find one the next best thing is the .pdf file that is online. I used both manuals to assist me on my first endeavor at repairing my grooved input shaft. Which reminds me. Make sure you replace the pilot bushhing in the crankshaft while your tranny is out especially if it is the roller type because they are more prone to failure (as mine did).

Here is the .pdf link.

Good luck and take your time. Email me if you have any questions.

 

I have the GM Tech Manual. . . All it says is "remove" doesn't say how or use what tools. . . I can't punch it out. The guide is solid metal, it only can come out the same way it was pushed in. . .

Heres a picture of the lil SOB. . .

http://stealthz.com/dowel.jpg

I always do that anytime I take the tranny out. . . But FYI, I don't use a bushing, I order the OEM bearing instead. Just my .02 but I would think the bearing would be better suited for a rotating shaft instead of just a hunk of metal

 

Yes that is the one I thought you were talking about. Just use a small punch or screwdriver and tap it hrough. You will think that it is gone for good, but when you pull the case off the rod will stay in place with the adapter plate. Make sense????

I would also think that the roller style would be better. As a matter of fact that is what I used until it failed on me and cut a groove into the input shaft causing it to vibrate. My thought is that the roller type has quite a few more parts that can fail as opposed to the solid bushing type. On the otherhand, as long as you replace it and are careful pushing the input shaft back into it, you should be fine.

Good luck

What are you trying to repair on the tranny?