aight im in the process of puttin in my t56 well everything was going smooth until i was puttin in my flywheel and the hole in the middle is to small. i don't know what to do, the guy i got everything from took it all from his 97 camaro. i have a 2 piece main seal if that helps....and to top it off i gotta chop my driveshaft like 3 freakin inchs....is there anyone out there that has had this problem or might be able to point me in the right direction.

thanks

Yes.

You have a stock T-56 flywheel, which is designed to go on a 1-piece rear main seal crank (86 up); but you have a 2-piece rear main seal setup (85 back). BTDT.

You need the special flywheel forged in the fiery furnaces of Hell by 10,000 year old gnomes fron pure singlesourceum. Prepare for some sticker shock. http://store.summitracing.com/defaul...&Ntt=ctf700107

Any drive shaft from a 83-01 F car with a 700, T-5, T-56, or 4L60E, will fit your setup. Don't cut on your drive shaft; somebody will pay you as much for that one in its unmolested state, as it will cost you to get a near new aluminum one with vibration damping, out of a LS1 car.

Ouch!!! that's a heck of a price tag for the flywheel!

HOLY SMAKERALS...im gonna have to sell the tranny just to pay for the flywheel...lol thanks for the quick answer if u guys by chance know of a cheaper place to get this bad boy im all ear or eyes lol

u da man RB thanks

aaaahhhh I guess you're gonna have to just sell me the t56
lol

If I knew of a cheaper place I wouldn't have posted the one that I did.

I think there's one or 2 other mfrs that make one like it, but I don't think any of them cost any less.

It's not a cheap part, no matter what. It never came as a stock configuration, so there's no junkyard part you can get, or stock replacement part; it's gotta be a specially made aftermarket thing, made specifically for that transmission in that particular swap-over application.

That's the same flywheel that I used; except of course I didn't pay that much for it. So I know it will work.

Centerforce 700107 is what I used in my swap. Big bucks, but it's the only way to make that tranny work with that motor.

How big is that flywheel? How heavy is it?

153 tooth 12.8" and 35.2lb according to CF's website.

I used a billet steel flywheel from Mcleod for a 400 and had it neutral balanced...that's another option.....however, it's still pricey.

aight went ahead and ordered it...better get here soon i need my baby back on the road.

once again thanks RB, didn't try and doubt u just thought someone might have seen it cheaper...anyway thanks again.

peace

Another option that is available is to re-machine the stock LT-1 flywheel to bolt up to a 2-piece rear main crank. That's the way I ended up going with my T-56 install mostly because the flywheel came with the tranny and bellhousing and had already been re-machined. So far I have had no trouble with it. Others on the board have frowned on the idea of enlarging the center hole in the flywheel and re-drilling the bolt holes, but I've talked to several very experienced mechanics and they see no major problem with using a re-drilled flywheel. I've had mine up to 6500 rpm a few times and it hasn't come apart or even produced any strange vibrations, so I'm not worried about it. If I hadn't already had the redrilled flywheel I probably would have spent the cash on the aftermarket one, but what I've got seems to work just fine and cost a fraction of the aftermarket unit. Anyway, I just want people to know that it is possible to re-machine and use a stock LT-1 flywheel to work with an older style block Good luck with the rest of the install, it'll all be worth it when you get done!!!!

-Paul

BTW...like the others said, your driveshaft should be fine. Mine was the stock unit from my car (originally equipped with a T-5) and it bolted right up and has given me no problems whatsoever!!!!

Any idea what a stock flywheel would do, if it did let go??

Hint: Measure the distance between your right foot and the flywheel.

That's why modifying one is not wise IMO.

You voiced the same concern in a couple other posts where I referenced altering the flywheel. I appreciate the concern and it is a valid one. If I were building an all out drag machine I would certainly not run a modified flywheel. I wouldn't run a stock flywheel even if it wasn't modified. All I'm trying to do is tell people that there is an alternative to spending $400 on a flywheel, and that I've had good luck with it. As I said in my first post in this thread, I spoke with several experienced people before I installed the flywheel (and also after I installed it) because I had concerns about it myself. Nobody I spoke with seemed to think that it would be a problem. They did not think that the modifications required for adapting the flywheel would weaken it or make it an unsafe setup. If you have the $$ to put into the aftermarket flywheel, GO FOR IT!!!!!! If I were doing it over again I would probably do the same, but the option is there for the modification, it was free to me, I used it, It's worked fine and I don't think it's too dangerous. I'm not trying to put people in danger by suggesting it, I just want them to know that it's a feasable option, that's all

-Paul