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Thread: D2 Diff into a RRC

  1. #11
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    Quote Originally Posted by Slunnie View Post
    If you want to run 30spline, then it is worth investigating if a Longfield 30spline star will go into it rather than broaching. Then you would need to look at the diff end also and if there is enough material to broach, then to do that also. Its important to have consistent diameter for the full length of the axle so that the forces are spread evenly through the shaft, so not a 1.31" axle with a 1.24" end on it and the other way around gives you no advantage. What I would do, is leave the CV alone, leave the diff alone and have 300M axles made and you will probably end up with a similar result to a 4340 axle in strength but with better shock force absorbtion which might help protect the driveline (ie the Rover CW/P). It'll also save you a lot of time, money and fabrication. For the rear, same.

    If Ashcroft/HTE etc don't/wont/cant do the axles in 300M then just go direct to the manufacturer who do deal with the public.
    RCV Off-Road Performance Products - CV Joints, Axle Kits, Tools

    Re Panhard/Draglinks, its not about the availability or adjustability, it's more about the matching fit and the links being similar so when the suspension cycles that the steering doesn't turn despite the steering wheel not turning - this is due to the axle moving on a different arc due to panhard location when compared to the steering which also needs to move on a matching arc. If you're fabricating already then you can also fix this at the same time.
    Agreed with longfields, seems like a better option..on the diff side i hav it on good authority the ashcrofts can be broached to 30spline safely.

    Running Ashcroft CW&P pegged on front and tom woods driveshaft, ATB Centee, Strong Auto so no probs there holding loads..


    Rear is 35spline already as disussed in another thread.

    Noted re panhards and links

  2. #12
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    Quote Originally Posted by loanrangie View Post
    Since the D2 uses hub units you would have to use the D2 housings so using RRC stud pattern is out of the question.
    What i am asking is can either the D2 front hub unit be converted to RRC stud patern or the rear RRC hub be converted to D2 stub pattern?

  3. #13
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    Quote Originally Posted by blackrangie View Post
    Rear is 35spline already as disussed in another thread.
    Off topic, have you already done this? Rangie housing, Ashcroft centre and 35spline 1.5" axles? I was under the impression the diffs didnt have the space and the hubs not the capacity for a 1.5" axle, but hats off to you if you've done it!
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  4. #14
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    Quote Originally Posted by Slunnie View Post
    Off topic, have you already done this? Rangie housing, Ashcroft centre and 35spline 1.5" axles? I was under the impression the diffs didnt have the space and the hubs not the capacity for a 1.5" axle, but hats off to you if you've done it!
    Cheers, it was not easy but worth it, and not possible without LRA anf some other great suppliers.

    Rear is:

    Truhi9 with the competition spec 35spline ARB RD99CE

    LRA Rover9 housing (these are available to order)
    TruHi9 Diff
    ARB Competion Strength RD99CE selectable locker
    Custom 35spline Hi Tough Axles
    Arnolds(ex jac mac) Custom hubs and Spindles to suit 35spline
    Custom 10 Bolt Hi Tough 35 spline Drive Flanges
    Put together by Les Richmond Automotive, LRA

    End result is a bulletproof rearend, propshaft is up out of harms way and we only loose 15mm clearance over a stock rover housing, giving maximum pumpkin clearance with 35's

    Would love to get the front up to similar spec, hence wanting to run D2 Housing with biggest axles we can fit.

  5. #15
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    Ahhhh ok. Awesome setup. Whole different ball game to what I thought you were doing.

    Still the same, except I think 30/30 300M axles and Long/Ashcroft CV's still the strongest axles/CV's you will get in there. I still really don't think there is an advantage to changing to a D2 housing. I'm not sure what broaching of the diff costs, but speaking to Daniel Bonegard (ARB locker/compressor engineer), you can just swap out the side gears as the update they did a few years ago now moved to common components. I would bet this will leave your CW/P by far as being the weakest link.
    Cheers
    Slunnie


    ~ Discovery II Td5 ~ Discovery 3dr V8 ~ Series IIa 6cyl ute ~ Series II V8 ute ~

  6. #16
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    Quote Originally Posted by blackrangie View Post
    What i am asking is can either the D2 front hub unit be converted to RRC stud patern or the rear RRC hub be converted to D2 stub pattern?

    Not without a lot of fabrication , d2 hubs are too small for the 6.5" pcd.

    Sent from my GT-I9300 using AULRO mobile app
    MY08 TDV6 SE D3- permagrin ooh yeah
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  7. #17
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    Quote Originally Posted by Slunnie View Post
    Ahhhh ok. Awesome setup. Whole different ball game to what I thought you were doing.

    Still the same, except I think 30/30 300M axles and Long/Ashcroft CV's still the strongest axles/CV's you will get in there. I still really don't think there is an advantage to changing to a D2 housing. I'm not sure what broaching of the diff costs, but speaking to Daniel Bonegard (ARB locker/compressor engineer), you can just swap out the side gears as the update they did a few years ago now moved to common components. I would bet this will leave your CW/P by far as being the weakest link.
    I have just heard that the Ashcroft does nt have enough meat to broach to 30spline from Dave himself..So the ARB does?

  8. #18
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    Quote Originally Posted by loanrangie View Post
    Not without a lot of fabrication , d2 hubs are too small for the 6.5" pcd.

    Sent from my GT-I9300 using AULRO mobile app
    Define a lot of fabrication and note what we had to do to get 35spline in the back, ha

  9. #19
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    On the question of RRC to D2 pattern, if the vehicle is a comp vehicle you can get adaptors in the UK which change the RRC pattern to D2/d3 pattern.
    I have 2 on my camper trailer.
    This will also reduce the increase in track to about 20MM due to the D2 wheels having more inward offset than RRC wheels.

    Regards Philip A

  10. #20
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    Quote Originally Posted by PhilipA View Post
    On the question of RRC to D2 pattern, if the vehicle is a comp vehicle you can get adaptors in the UK which change the RRC pattern to D2/d3 pattern.
    I have 2 on my camper trailer.
    This will also reduce the increase in track to about 20MM due to the D2 wheels having more inward offset than RRC wheels.

    Regards Philip A
    Thought about that but would need to be engineerable as everything else is on the truck.

    Sent from my SM-G920I using AULRO mobile app

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