Good news! I got a transmission, and I paid a total of $0.00 for it. w00t. The only problem is I don't know anything about it. From what I have been able to read and whatnot it is a Borg Super T-10.

http://www.dellanave.com/corvette/la...10_640x480.JPG http://www.dellanave.com/corvette/la...11_640x480.JPG

All the numbers I can find on it are as follows:
13-04-066-903

2CL544561

WH412

MLTS819

FpC4

How can I find out what ratios are in this trans? Will my stock shifter (that was found in the back seat of the car) bolt right up to this tranny? (I assume it will, but as long as you guys are around, I don't rely on assumptions ;)

Thanks!

 

The pics won't come up for me. The server appears to be down - I get 100% loss when I ping it.

 

Yep, no pics for me, either :(

I am pretty sure your stock shifter will bolt up to a Super T-10 though

They are identical to Muncies (with little differences by year and wide/close ratio).

AC

 

Sorry about the pics. It appears the wall wart for my network hub blew up. I took it apart and it was all black inside, arced across a cap and a resistor. I guess I'm lucky to still have a roof over my head.

Thanks for the replies

 

I don't know anything about the trans, but the pics are working now. ttt. :D

 

David,
It does look like a Super T-10 NOW count the rings on the mainshaft and report back.You WILL have to remove the side cover and look at specific things to see if you got a "good deal" or a "boat anchor" ..redvetracr

 

redvetracr,
I called my uncle to have him look at the trans (which is why I am not 100% sure) and he said there are "2 rings on the splines on the input shaft" Does this make sense? If so, what do the 2 rings mean?

Thanks!

 

ddn,
It`s a close ratio 2.43 1.61 1.23 1.0. In my opinion a "close ratio" is the BEST one to have.I use a "modified" version in my vintage racer ...redvetracr

 

Wow. Assuming it is in good condition, somebody gave you a tranny worth 1000+ dollars.

Some Super T10 links -
http://www.richmondgear.com/cat/supert10.html
http://www.richmondgear.com/cat/supert10expl.html
http://www.richmondgear.com/cat/supert102.html


(Richmond now owns the T10 design)


[Modified by 45ACP, 8:18 PM 8/15/2001]

 

45ACP,
NOT $1000 BUT a few hundred. That is if it`s "good"

 

redvetracr,
No doubt close ratio is awesome. You should see how close the gears on my R1 are =) About 1000RPM difference at same MPH for each gear...but then it also revs to 12,000. BTW, you have a gorgeous car.

45ACP,
The story's a bit longer, but it wasn't so simple as someone just "giving me a ST-10". In fact, it's the least he owes me. Thanks for the links!

redvetracr - The trans has been rebuilt as you can probably tell from the pics, so I'm not totally sure if what's inside matches the case numbers etc. What exactly told you what ratio it was? Couldn't be only the rings? I can take the cover off this weekend and look in more detail and count teeth etc. I will also take more pics, seems to me if it's been rebuilt it should be pretty good. I think I'm going to hock the 2 stock shifters I have now on eBay and see if I can come close enough to buy myself a Hurst

Thanks so much for the replies everyone, I love this place.

 

You got a rebuilt close ratio Super T-10 for free? (even if the other party owed you big time) That's awesome.

In any case, that's the exact same tranny (2.43 first gear) that I'm running in my 68 camaro. Unless you enjoy changing clutches every 3-4 months make sure you don't run any gears lower than a 3.55, 3.36 may be cutting it close. I ran that tranny with a 2.56 rear gear set up when I first installed it.

It was like trying to take off out of the pits with an indy car. I was changing clutches ALL the time, good thing I had a lifetime clutch from checker. I now have a Ford 9" with 3.73 gears and a Centerforce clutch and wow that made a difference.

As far as the shifter is concerned I *think* it will bolt right up. I converted my camaro from an automatic, so I just ended up using a hurst competition plus shifter. The Muncie and the BW supposedly share the same dimensions, but have a different mainshaft design. I know for a fact you can use the same synchros and sliders in the Super T-10.

When I was in AZ I saw an M-20 and a Super T-10 side by side disassembled, the only real difference I could tell was that the gears were cut at different angles and had a slightly different shape, the one's on the ST-10 were "sharper" for lack of a better word. the splines for the reverse gear on the mainshaft are helical on the muncie whereas on the ST-10 they're straight. The Case design for the Super T-10 is a little stronger than the Muncies, but other than that they should drop right in.

Are you converting from an auto or just replacing yours?

 

Muncie synchros and sliders are NOT the same as a Super T-10, and depending which muncie you shifter fits it might not work,sure it will bolt up BUT the levers may be wrong if they are the Muncie type that takes bolts instead of nuts.You may also need a new clutch disc as many older Muncies are coarse spline and your super is fine, and if your muncie has a small output shaft your trans yoke won`t work your Super is a large yoke.
...redvetracr

 

Steve,
I'm not converting or replacing, I am building my '68 (check my sig) from scratch basically. I get my 454 probably tomorrow, and as far as I know I won't be getting a clutch, so I will need one.

The more I think about it, the more I am convinced that I should sell the 2 stock shifters I have (one complete, one missing some linkages and the mount bracket) and buy a Hurst. I want a Hurst

The Hurst Comp Plus that is designated as for the '68 Corvette with the installation kit they have listed should bolt right up right? I'm sorry if these are really dumb questions, but I'd rather ask now than screw up later.

Thanks!

 

You're right, I double checked and the T-10 and the muncie share the same slider, not the Super T-10. The part number of the sliders I put in my M-21 was T10-15. Here's a parts page that confirms that. I got the torque lock sliders, which supposedly hang onto the gear when you're decellerating.

I knew the muncie shared sliders with something, I just remembered wrong, thank you for correcting me.
http://www.dandltransmission.com/partscat.htm

DDN: If you have the large fine spline output shaft, thank your lucky stars. The 27 spline output yoke for mine cost about 200 bucks. Tony's Corvette Shop in MD only wanted 50 bucks for the large yoke, which has the same spline count (31) as a TH-400.

--
Steve