front diff driveshaft question

[Mike Rainbird]

Mike,

Its me not reading the post properly, I thought peeps were talking about 2WD rears. its been a while since I saw a 4WD rear shaft..lol....I cant understand why you bought a whole shaft as the 100mm joints are available seperate from Raceparts...

http://www.raceparts-direct.com/prod...ints+%26+Boots

The bare shaft itself is the part that will need manufacturing by someone like DOME or Doughty, the joints are available for whatever application...

One of the cars I used to look after years ago (with i'm nearly sure the R & D front diff used the Audi 100 Outer C.V's)

Because a drive-shaft complete was half the price of a pair of the new ones and readily available . However, I have saved this site, as it is good to know. Regarding the shafts, that is probably where Bara got them from LOL.

[ian sibbert]

Did I understand this correctly: you can use a audi 100 outer joint on a standard shaft and hub, and it's stronger?

Tore,

No i think i may have mislead you pal, I was refering to mike and wenny...some the escorts we've see in rallies that arn't 100% built to a spec used modified front diffs such as the R & D mike has, they were a cheaper option than say a 7 1/2" FFD or an Xtrac, some of the rally lads mated the R & D to Group A gravel hubs with the larger bearings and drive train, one of these cars had custom length drive shafts, used 100mm inner CV's and had an Audi outer CV...the outer CV info for mainly meant for Wenny if he is using the Grp'a' hubs on his new car....

Bare shafts can be made to any length with spline configuration to accept competition joints, all of which are readily available (at a price of course) lol

[jacko996]

Hi Ian

Can I bring this subject up again.

Shafts & Inners I think I am sorted on, but the outers, as Wenny has had to do I am stuck on. Is the Audi 100 outers a better choice for strength etc?

Cheers Dave

[steveboyslim]

Hi Ian

Can I bring this subject up again.

Shafts & Inners I think I am sorted on, but the outers, as Wenny has had to do I am stuck on. Is the Audi 100 outers a better choice for strength etc?

Cheers Dave

When i was sorting the shafts on my car I talked to Ian, but we could not identify what Audi outer cv fitted.
What drive flanges and which upright,s are you using ?

Steve

[jacko996]

R&D diff flanges
going to use 4x4 cosworth rears or GKN ones for the inners

GPa uprights using modyfied standard stub axles on the bigger bearings

[steveboyslim]

R&D diff flanges
going to use 4x4 cosworth rears or GKN ones for the inners

GPa uprights using modyfied standard stub axles on the bigger bearings

Sorry I ment outer drive flanges.
If using standard 4x4 with sleves to take transit bearing then you can only use the ford type with the same spline size/length.
If using steel motorsport flanges you will need motorsport outer cv's as they use a larger diameter spline through the drive flange as the standard shear.
The motorsport (tarmac) cv's, 100mm lobro's and standard front driveshafts all have the same spline (driveshaft).
If you are using a rear driveshaft on the front to suit 108mm inner lobros you may not have the correct spline for the outer cv's and custom shafts will be needed.
As an example of prices a pair of hollow front shafts nearly £800 per pair (mine were longer and equal length) motorsport outer cv's £900 per pair, £120 each for the lobros with the boots, £300 each for the drive flanges, plus you will need motorsport wheel studs/nuts (I had flanges which I had broached to the correct spline).

Steve

[jacko996]

Hi Steve

Custom shafts will be ordered, so what would be the best / strongest outer joint to run with the sleeved stub axles?
cheers Dave

[ian sibbert]

Dave,

The audi outer was used by a few people I think DOME might have had a hand in doing it...

Pal of mine Bob Green used the audi outers onto a R & D front diff..



The outer drive flanges were IIRC early sierra group A which had a smaller spline pattern and were compatible with the audi outer cv...

I would imagine you're using a later drive flange and as such you'll need some grp 'a' outer joints...as Steve will tell you it's getting harder to find good joints we have both had to bite the bullet and get new ones off Dewitts..

Ian

[escosgaz]

Hi Steve

Custom shafts will be ordered, so what would be the best / strongest outer joint to run with the sleeved stub axles?
cheers Dave

Dave im still in debate wether to go rwd, hope to make mind up by weekend and if i do il order new box monday, was also thinking of keepn my 4x4 stuff incase wanted to change back but im more than sure if i did go rwd i wudnt wana swap back so wud probs sell my shafts, tryd to ring you the other nite m8.

[jacko996]

Dave,

The audi outer was used by a few people I think DOME might have had a hand in doing it...

Pal of mine Bob Green used the audi outers onto a R & D front diff..

http://img.photobucket.com/albums/v4...r/BobGreen.jpg

The outer drive flanges were IIRC early sierra group A which had a smaller spline pattern and were compatible with the audi outer cv...

I would imagine you're using a later drive flange and as such you'll need some grp 'a' outer joints...as Steve will tell you it's getting harder to find good joints we have both had to bite the bullet and get new ones off Dewitts..

Ian

Thanks Ian, cant believe how complicated these shafts could be !!

Dave im still in debate wether to go rwd, hope to make mind up by weekend and if i do il order new box monday, was also thinking of keepn my 4x4 stuff incase wanted to change back but im more than sure if i did go rwd i wudnt wana swap back so wud probs sell my shafts, tryd to ring you the other nite m8.

es sorry Gaz, had my head under the car as usual

I am out on the roud in 15mins give me a call then for a chat

[steveboyslim]

Hi Steve

Custom shafts will be ordered, so what would be the best / strongest outer joint to run with the sleeved stub axles?
cheers Dave

The weakest part will be the standard size spline which you will be using with the sleeved drive flanges.
The only way to strenghten would be to use motorsport outer cv's with the correct steel drive flanges, which are readly available (at a cost)
If you use Audi outer cv's, if you can identiy which to use, drive flanges with the correct spline will need to be sourced/made.

Steve

[jacko996]

Its not the splines I've been having trouble with, it's been the outer joints continuously destroying themselves

[ian sibbert]

Are you breaking the cages Dave???

[jacko996]

Yes Ian

[steveboyslim]

Have you checked the plunge on the inner lobro from full compression to full droop ?

Steve