Driveshaft Problems

[Calin]

I have currently bought a 1992 3000GT VR4 and the u joints on the driveshaft are worn out. I found out that the joints are nonmarketable so you can'y buy them. So Im in need of a new drive shaft. The stock is a 3 piece shaft but the aftermarket ones are either 1 or 2 piece. I think its time to upgrade to a carbon fiber. However I dont know which to go with (1or 2 piece) and what are the advantages over one to the other. Please help e out with advice and recomandations. The more the better.

Thanks

Caln

[defgh1]

PST estimates 10-15% of the cars that get the one piece CF Shaft will have problems with vibration at high speed. To date they have had no reports of vibration problems with their 2 piece CF Shaft. The one piece is a little cheaper and lighter than the two piece. I have the one piece and have had no vibration problems.

Doug H

[njrbd]

Hey I have a drive shaft from a 98 vr4 with 92,000 miles and its in perfect cond.
350$ + shipping OBO

[defgh1]

6 speed Drive shaft will not fit a 5 speed! He has a 92 VR4.

Doug H

[Calin]

Hey thanks Doug I appreciate th advice.

I also have a nother question for anyone that could help me out. For a couple of months now MY 1992 VR4 misfires at times. For example sometimes it starts off fine and then I turn it of and try to start it up again and it misfires and at times dies. Sometimes it revs so low almost at 0 rmp and feels like its gonna die. Even if i give it gas it still doesnt feel the same. so when i rev it at times lest say i rev it to 3000rmp and let off the gas it will come down to about 1000rpm for a few seconds then goes down to about 700. Can anyone help me out?

thanks

calin

[Apache]

What speeds has PST observed there being vibration at for the one-piece? Just curious since I'm looking at upgrading to a CFDS sometime soon and would like to know.

Also, there were problems with vibration when PST first released the two-piece shafts. Read about it somewhere on Stealth316. They've since redesigned the two-piece one with longer input shafts to alleviate this problem. Or so I've heard.

[defgh1]

Originally Posted by Calin

Hey thanks Doug I appreciate th advice.

I also have a nother question for anyone that could help me out. For a couple of months now MY 1992 VR4 misfires at times. For example sometimes it starts off fine and then I turn it of and try to start it up again and it misfires and at times dies. Sometimes it revs so low almost at 0 rmp and feels like its gonna die. Even if i give it gas it still doesnt feel the same. so when i rev it at times lest say i rev it to 3000rmp and let off the gas it will come down to about 1000rpm for a few seconds then goes down to about 700. Can anyone help me out?

thanks

calin

Check here: http://www.stealth316.com/2-isc-iac.htm

Doug H

[defgh1]

Originally Posted by Apache

What speeds has PST observed there being vibration at for the one-piece? Just curious since I'm looking at upgrading to a CFDS sometime soon and would like to know.

Also, there were problems with vibration when PST first released the two-piece shafts. Read about it somewhere on Stealth316. They've since redesigned the two-piece one with longer input shafts to alleviate this problem. Or so I've heard.

It varies with each car. Some have experienced problems at 60 mph others at 100+! Many time the vibration can be eliminated by rotating the position of the flange on the rear differential. In other cases some need to upgrade to the two piece.

I have not heard of any problems with the 2 piece shaft.

Doug H

[Apache]

http://www.supercar-engineering.com/.../Mods/TT/CFDS/

Erik Gross was one of the first to document the vibration problems with the 2-Piece setup. As I said before though, PST has since fixed this problem (at least to my knowledge).

And thanks for the info on the one-piece system. But does there seem to be a trend to the vibrations? (ie. 5-Speed or 6-Speed, build-date, brackets or braces on the transfer case, aftermarket rear LSD) I'd like to get the 1-piece since that would obviously be lighter and put more power through to the wheels, but I'm not going that route if it'll just end up killing my car.

[Calin]

Thanks guy for the help. I might just play it safe and go with the 2 piece for the extra $200. I will also take the car for a tune up and a general check because since I got the car last summer I didn't do a maintenance on it yet. Im hoping that should clear more or less some of the problems.

I have noticed quite a lot of things wrong with the car and from what I hear they are quite prone to problems. For example my rear spoiler is not working and I dont know whether the Tour/Sport is working because the lights don't come on on the dash. Also the radiator light in constantly on but I got it checked and it was fine. I was told it is more then likely some sort of sensor issue.

Calin