L-82kid

I got home form school tonight and pulled the tranny out. The main case is cracked in half on both sides, the side cover is in two pieces, the midplate has a chunk missing from it, and the tail housing is cracked. I opened the trans up and found 1st gear missing teeth because a peice of the midplate broke off and destroyed the counter shaft gear and 1st gear. The input shaft (4th), 2nd, and 3rd seem fine.


Motorhead you are correct, the case cant handle the torque.

I'll post some pictures up. but Right Now I'm going back to garage to swap in another super t10. I had another trans in good shape so I'm swapping it in just to get the car running again. I'm going to keep my street tires on with this one around town for now. The clutch and pilot bushing seem fine so I'm leaving them installed until I upgrade the trans. I've had the trans in and out so often Its becoming as routine as an oil change. lol

Bud2

At least it seems your dad did a good job on the diff! Now if he could only bullet proof the trans....

Bud.

elle88

I'm Italian...
also Masiero has moved to china manufaturing? are you sure? Heresy!!!

I have a M21 and recently bought the Autogear M21Y OD gearset ( made in Italy written on the boxes) and the steel midplate.
my car is intended for road racing or so...I hope the new tranny will be strong enough for my purpose ( downshifting puts lot of stress on the transmission, it's always my main concern)

morganjd

In June auto gear had the last container on the water to the USA, they did not know what was on the load, but they had no second gears to build the m22 wide ratio. Auto gear will not tell you that as they are the big importer, the other importer into the us is on the west coast. I believe that he has moved his operation to china. If someone knows otherwise, I would like to know. Either way the gears are real nice, pretty quiet too

johnmb

There's ALWAYS a "next weakest link"

L-82kid

Heres some pictures of the broken trans. I swapped in a good used one I had in the garage. I went for test drive today and it seems ok for normal driving.

Solid LT1

REAL Super T-10's have cast iron maincases and 9310 high nickle gears. The GM "super T-10" isn't so "super". My buddy has a 2.88 1st gear real Super T-10 for sale, $975 would buy it, pretty decent price. Shipping would be form 94538 Zip Code, about 110lbs of weight. IM me if you want a REAL "Super T-10".

BB72

I believe the steel case ones came in Z-28's, correct me if I'm wrong.

Lester B

I bet your dad is giving you the 'I told you so'
You still planning to run it at the weekend or going to wait until you get the new trans?

Lester

Solid LT1

NO! only nodular iron Super T-10s were sold in aftermarket. All GM late not-so super T-10s (only had improved synchronizers and little stronger gears than original T-10 4speed) had aluminum cases. Maybe 3rd Gen Camaros had iron main cases, that I don't know but good 9310 gears only in aftermarket Super T-10s from mid 70's through early 80's. I know Camaros had saginaw 4 speed with iron case and I think a few late C3 Vettes also, pure junk behind anything over 200HP (fine for your Corvair, Monza, or Vega but not much else.)

mysixtynine

I'm surprised your not running a scatter shield? After seeing this I think you should put something over that clutch that will allow you to keep your feet in the event the clutch lets go.

68/70Vette

in addition to the TK600's, I think a Richmond 5 speed may be a good choice. The Richmonds sell in the high 2000's to maybe $3200.

If you want to play, you gotta pay. I've never seen a actual TK600, only pictures. But I have a Richmond and when I set the Richmond next to the stock Muncie, the Muncie looks pretty puny.


I buoght my first Richmond back in the late 1970's, when they were called Doug Nash 5 speeds. (Richmond later bought out Doug Nash). I bought the Doug Nash because I threw a power shift in a 69 Coupe that had an L88 clone engine. The L88 shredded off all the teeth of the Muncie input shaft. I still have the input shaft today, I use it to align the clutch whenever I'm doing a clutch install.

After I installed the Doug Nash, the next time I did a power shift, I wiped out a 1/2 axle u-joint. Since then I've cooled off on trying to spin rear wheels. I've never yet spun the wheels on my 68 powered with a hot-cam ZZ4.

Ray Y

OUCH!!

I agree with my69's post, get a good scatter shield before it's too late. I've got a QuickTime SFI rated unit for insurance.

L-82kid

I decided to bring the vette to the track tomorrow anyway. My buddy is towing it on the trailer so I wont be stuck if it breaks. I'm not going to try and launch the car crazy hard, just going to have fun and make a few passes.

L-82kid

i'm def going to buy a scatter shield this winter. I have to upgrade the trans away so I'll do a new clutch and scater shield then as well.

L-82kid

We loaded the car up late friday night at 12AM, got up at 530am this morning, drove 90miles to the track, and the track decided to close because of track conditions!!! I made it all the way to the rest stop right before track exit and heard the bad news from other racers. There was alot of pissed off racers at the rest stop and we saw a bunch of other race cars on trailers on the way there and back. It was in the 40s with a few clouds, but by 11am it was sunny and in the 50s. I dont know why they closed or why they didnt post it on their webpage!

The track closes next weekend until april. Now I have a 5gallon bin of 110 oct race gas. We never got the car off the trailer wasted 4hours of driving. There was 12 of us and 5 of my buddy's cars racing plus a whole other group with a few 9-8sec cars from another shop in my town. Everyone was pretty mad, I spent 50 bucks for race gas and 60bucks for fuel for the truck. 110 dollars wasted! The only fun thing all day was when my buddy laid down a big smoking burnout out of the rest stop.

Lester B

Bet you are well gutted, probably more than if you had toasted another transmission.....

morganjd

The race gas will keep if it is unopened and still sealed

68sting

I have a Richmond 5spd and knocked 2nd gear out last year. I'm running drag radials with around 600ftlbs of torque..

bmans vette

Back in 1971 I bought one of the first cast iron versions of the Super T-10 for my 67 Camaro after blowing up the "aluminum case" 4 spd that came in it.
Awesome transmission with a 2.54 first and 4.11 gears in the rear.
My vette build is waiting for the TKO as I would like the overdrive feature for trips.

Bman