New (and novice) here. Need to put 83 Berlinetta on road as daily after parking 20+ years ago with tranny issues. 350,000+ miles on original engine and (I hope/should be) tranny, original clutch replaced at about 300,000 miles.
have tranny tag with following numbers:
14053647
13-52-028 20573

Please help:
​​​​​​1. How to see if original tranny match to engine?
2. What rebuild kit should I get? (Specifications and recommendations)
3. Any other advice on general?

Thanks in advance.

 

We can't tell you what kit you need without looking. inside the trans. I could but a seal and bearing kit and new synchronizers, that is the normal wear items. But at that many miles who know what else is out of spec. You may need shifting forks or rings. If the gears themselves are worn then the gear box may not be worth fixing. Gears are very expensive but the big cost is always the counter gear. It is easy to tie up 2k rebuilding a clapped out manual trans and get it back to GM specs. That is just in parts.

You have heard the term number matching. There should be a partial Vin number along with a model number on your trans. The 1983 was the first year for the T-5 it is by far the weakest of the t5 line. If someone put something from 86 up in there is would be an upgrade.

 

I hope it is original tranny to car. I'm second owner and first did not change anything, so I got it perfectly stock. A shop, when they went to fill transmission fluid, pulled the wrong bolt and dropped the linkage. They supposedly sent it out to be put back together. It never felt the same and I always suspected they swapped tranny, but never confirmed. If that's the case, I don't know. Thanks. Looks like I need to send it out and not try this on my own. Hopefully I can find someone who still does this.

 

Finding someone that knows his way around a T5 should not be an issue. It is one of the most popular manual transmission ever made. GM used it through 2002 in the camaro, ford used it through 2010 on the mustang and I don't know Jeeps but it may still be used in jeeps today. There were some upgrades in the later 80's but those where more about "better parts" then a redesign. Just find a trans shop that does manuals they will most likely have a t5 expert.

Just a FYI on a 83 non-Z28 with 350,000 miles numbers matching or non-numbers matching is not going to matter value wise. On a 83 Z28 with 12,000 miles on it, it will make a difference because a car collector could be involved. I have been dealing in camaro's and other chevy classics for almost 40 years, I would not spend an extra $20 to keep that car numbers matching. In fact with that many miles on it I would even advertise it and say transmission was upgrade to a world class T5. In this case having documentation of rebuild or replacement on any major component would help the value of the car.

 

Thank you. I was thinking having it stock is just so I know what is there and what kind of driving wear there is on it... If I sell it, it will be for parts. I will do more shopping around to find an expert for rebuild. It has been difficult as all the shops say they don't work on cars this old, which is why I am looking to do work with family and friends and was seeking as much info as possible. Everything we do is a battle cause rarely do stock parts listed actually fit and I know it's stock... Apparently, they had a variety of options on what feels like everything for this and I have to be very precise with actual part numbers. Again tha ks for the response!

 

Any transmission shop should be able to go through that trans,I think it was also used in S10 pickups.