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Tailshaft Length For 25 Box In R32

XXXI
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XXXI Enthusiast

XXXI

Posted
Posted

Have done a search and didn't find a definite answer.

I am wondering what the length is or even just shortened/lengthened for RB25 gearbox into R32 (specifically 4door, if there's a difference?)

I realise I need a 25 yoke for the tailshaft but can anyone give me anymore info regarding the conversion? As I've read a few contradictory threads about it.

Cheers

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GTSBoy Grand Master

GTSBoy

Posted
Posted

You don't even need to know. Just front up to any decent tailshaft place. You possibly won't even need to tell them what you want. If you hand them a full R32 tailshaft and the front half of an RB25 one, they'll already know what you want and just do it. They will have done it 3 times that week already, even if you arrive on a Monday.

  • 3 weeks later...
XXXI Enthusiast

XXXI

Posted
  • Author
Posted

Sorry to say but you are wrong. Rang up hardy spicer today and apparently they don't keep records and guess what it's a Monday also.

Anyone with any useful information that could help me out?

R32Abuser Mentor

R32Abuser

Posted
Posted (edited)

His point wasnt that there is an exact length for every car and that they would be able to rattle it off to you.

Each car (depending on how the box is sitting in the car) will need some slight adjustment. Sure there might be a ballpark length, but do you really want to get it farbicated to this length to find its too short/long?

As GTSBoy said, take the whole lot to a tailshaft/driveshaft place (Hardy Spicer is an example) and get them to do the work for you based of how the assembly is sitting in your car.

Edited by R32Abuser
GTSBoy Grand Master

GTSBoy

Posted
Posted

Sorry to say but you are wrong. Rang up hardy spicer today and apparently they don't keep records and guess what it's a Monday also.

Anyone with any useful information that could help me out?

Spicers are a bit random. I did say "any decent tailshaft place". I don't think we got Spicers to do mine. You could take your tailshaft bits to FoursNMore at Pooraka and get Brenton to sort it out for you. His story about how mine got done reads EXACTLY as I wrote in my first post. We took measurements of distance from gearbox extension to centre bearing bolt holes, he took the parts to the tailshaft place, guy at the counter gave the "oh, another RB25 into R32" shrug and went away and did it.

The only problem we had is that the tailshaft joints in Adelaide are sometimes so busy that you can't get anything done for weeks at a time.

XXXI Enthusiast

XXXI

Posted
  • Author
Posted

Got basically the same story from Adelaide Tailshaft Services aswel that they only make them up if you provide measurements, didn't think it would vary from car to car so much and assumed they kept records also. Will have to measure it all up once gearbox is in it seems.

Anyone able to shed any light on what clutch master/crossmember to use? Always find more hurdles with modifying cars it seems ;)

GTSBoy Grand Master

GTSBoy

Posted
Posted

Same clutch master is fine. Trans crossmember is harder. There are three types, marked A, B and C. They are mix-matched across various cars depending on which gearbox is in there. For example, the R32 auto uses a different one to the R32 manual. I can't remember which is which and I'm not going to try sliding under my car to tell you which one I've got in there!!! If you get hold of one of each, you should just be able to throw it in the car on the day.

XXXI Enthusiast

XXXI

Posted
  • Author
Posted

Clutch slave sorry, makes sense R32 one doesn't bolt up to R33 bellhousing so will need an R33 unit obviously.

I have an A and C, apparently it's different converting auto to manual or manual 20 box to 25 box so guess there is no definite answer but hopefully one of the two I have bolt up

GTSBoy Grand Master

GTSBoy

Posted
Posted

I went from R32 auto to manual and had to change crossmember. Then RB25 box transplant and had to change crossmember. I have a strong suspicion that I have the same type under there now as when it was RB20 auto. If that helps. Won't help if yours is a manual body.

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