1 Piece Tailshaft Opinions

[BHDave]

Hi guys,

I'll be swapping to an rb25 gear box shortly and i am considering a one piece tail shaft seeing as i will need to get a custom front half done anyway.

I know all about drive shaft angles and such, but as far as i can see the stock 2 piece shaft looks to run pretty straight. I suppose the other concern is the 200k old centre bearing carrier deflecting under load as my rb25 is putting out 280odd rwkw with lots of midrange pull.

Is there any feedback on one piece shafts in gtst's, i have found giant's comments on the one piece carbon vs 2 piece stocker in a gtr, but not much on gtst's which are a touch longer.

anyone?

cheers

Dave

[Bl4cK32]

I run a 1 piece alloy one in my 32 gtst. It goes from the nismo gt pro diff to my rb25 box.

As u said its a straight line, so no need to worry about angles. No where near as bad as say commonwhores.

Mines great, weighs fark all (u can pick it up with 1 hand), and have had no problems at all with vibrations, or noise.

Anyone who knocks em hasnt had a properly balanced shaft in their car.

[BHDave]

Hmm, you make an interesting point about an alloy shaft. I hadn't even considered that to be honest. May have to make some inquiries in that direction.

cheers

[r33_racer]

not just commonwhores....any car with a live rear end suffers the same fate.

Out of curiosity...how much does an ally tailshaft cost roughly?

[Beer Baron]

UAS in sydney sell 1 piece alloy shafts for skylines. cost is around $500 from memory. quite good value I think and much lighter than stock.

[Bl4cK32]

lol

the pic they show looks the same as the gtr one

Mine has the 4 bolt on the end to go to the diff, but the rb25det slip yoke attached to the other end..oh and mines painted black...

[r33_racer]

is there some sort of hp/torque rating on them?

[Bl4cK32]

is there one on the std?

[r33_racer]

yeh...about 320rwkws and 280wide slicks and a 4k launch at morgan park off the grid snapped all the unis and spat it out......so yeh there is a rating normally. The hardy spicer one we got made had a rating in torque, however i cant remember it.

[Bl4cK32]

that would be the unis fault then, not the actual tailshaft itself U can beef the unis up as well i remember reading somewhere

[R31Nismoid]

Who does custom ones Ally or otherwise? Anyone have a link i can checkout?

Being i'm putting mine back in the near future... and i think i have an R33 shaft which is 2 piece in mine, i could go a 1 piece easy enough.

So getting it done now wont hurt, plus lighter is certianly handy!

Last thing i need is to find another weak link

[Bl4cK32]

only ones i know of -

http://www.hardyspicer.com.au/driveline_products.asp

the usual google results -

http://www.msdriveshafts.com.au/

http://www.truckline.com.au/

Edited February 9, 2007 by Bl4cK32

[r33_racer]

Yeh the new tailshaft had beefed up unis, one size under what supercars use i believe, gotta be nongreasable, solid core unis, not hollow greasable ones. But i think the actual tubes inbetween are rated also, depending on wall thickness and diameter. In our case the tubes didnt distort from the initial shock, only from hitting the ground after it was spat out.

[BHDave]

Thanks for all the info.

It's handy to know that hardy spicer will do alloy ones as i had one done for my rx7 by them years ago and was probably going to go back there again for a quote atleast. Some of the prices i've gotten from places close to work for a regular old steel one are over double what i paid for the last one.

[Bl4cK32]

In our case the tubes didnt distort from the initial shock, only from hitting the ground after it was spat out.

Saftey loop goes a long way with a single piece

I remember someone had truck unis installed in their line, as they were much stronger than the upgraded items they had origionally...?

[r33_racer]

funny thing was we have two safety loops, one for each half...magically somehow both halves got past them without even touching them....weird.

Must have been light truck uni's cause you wouldnt fit any out of any prime mover...kenworth, mack and so on. Just too big.