Well, I'm still trying to deal with the driveshaft problem on my conversion. The T2 driveshaft is much large then the NA and it won't bolt onto the NA flange thats on the rear end. For those who have done this kind of swap, what did you do? My choices are to put a T2 rear end(I don't wanna do that yet!), have the NA a T2 driveshafts taken to drivetrain shop and cut the yoke off the NA one and weld and balance it onto the T2 one, or I can redrill holes in the offset of the ones that are already on the flange...I'm gonna go w/ the 3rd option for right now, but I'm affraid it won't be very strong and I won't be able to get into higher RPM w/out the driveshaft braking or the flange splitting...any suggestions are appreciated!

i believe drilling the holes is the easiest method

I heard that an automatic driveshaft will do the job.

Ok, I've done this before.





The guy at the driveshop told me the very same thing. It will make the flange weak because the holes will intrude into the welded part. IT will make hard also to put the bolts on right..









[b]This is what I recommended over option 3. This is what the driveshaft guy actually recommended because it will be safer. At the time I was doing a different conversion. I had a n/a trans connecting to TII diff. The driveshaft shop happen to have a flange for a TII so I got lucky. The job was expensive. I had to spend around $200 to have it cut and welded back and balance, and it came with a serviceable universal joint.[B]







IF option 2 cost you almost $200 dollars to do, I would rather have you get a TII diff with the halfshaft. The TII diff is more stonger for high hp and torque, so are the half shaft. I do recommend this the best option if you are going to spend a lot of money getting the driveshaft modified. It will save you time later on.



Well that's my 2 cents.



C

I heard that an automatic driveshaft will do the job.[/quote]

I've also heard that since it has the macthing yolk and flange but I think same length form the trans to the diff is different. I think the auto is much shorter or longer so the driveshaft would have to modified.



C

Well, for now I'm doing the drilling just because I don't have a drivetrain shop around here that I've spoken too..I know there is one about an hour from me, so I'm gonna call them tom and ask about it. If I drill the holes, I know I'll have to keep the RPM down and the torque shifts :( How high do you think I'll go...and how dangerous is this...whats the chance of it braking if I were to..oh say downshift into 3rd at 60? lol

I heard that an automatic driveshaft will do the job.[/quote]

I've also heard that since it has the macthing yolk and flange but I think same length form the trans to the diff is different. I think the auto is much shorter or longer so the driveshaft would have to modified.



C[/quote]

I never measured anything. I would just get the TII driveshaft and rear end. That's what I did.

I heard that an automatic driveshaft will do the job.[/quote]

I've also heard that since it has the macthing yolk and flange but I think same length form the trans to the diff is different. I think the auto is much shorter or longer so the driveshaft would have to modified.



C[/quote]

I never measured anything. I would just get the TII driveshaft and rear end. That's what I did.[/quote]

I would double on that with 13BAce.



Any inperfections on the drilling, like being off center could be damaging to u, the car or diff. LIke having the assembly out of balance that it would vibrate so bad that it could make something break and have a driveshaft up your ass or flip the car.https://www.nopistons.com/forums/pub...O_DIR



You have to becareful if you take the flange off the diff to not overtighten and follow the torque specifications.



C

I heard that an automatic driveshaft will do the job.[/quote]

I've also heard that since it has the macthing yolk and flange but I think same length form the trans to the diff is different. I think the auto is much shorter or longer so the driveshaft would have to modified.



C[/quote]

I never measured anything. I would just get the TII driveshaft and rear end. That's what I did.[/quote]

I would double on that with 13BAce.



Any inperfections on the drilling, like being off center could be damaging to u, the car or diff. LIke having the assembly out of balance that it would vibrate so bad that it could make something break and have a driveshaft up your ass or flip the car.https://www.nopistons.com/forums/pub...O_DIR#>/11.gif



You have to becareful if you take the flange off the diff to not overtighten and follow the torque specifications.



C[/quote]

Yeah, I would be wary of drilling because of the balancing issues. Sometimes the driveshafts don't like to come off of the differential. That's a pain in the you know what.

I don't know if it is true or not, but I've heard that you can use a automatic drive shaft and it'll bolt up to a NA rear end, and a turbo tranny. Anyone else heard this? Is it true? How much hp can the NA rear end handle before you start breaking things?