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Thread: Sticky : how to AWD a mk1 caddy using ‘4Motion Haldex running gear’, for beginners.

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  1. #1
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    Sticky : how to AWD a mk1 caddy using ‘4Motion Haldex running gear’, for beginners.

    First of buy or make a spit, I’ve made mine with dimensions from Rupert

    1D4DE3E7-1AF0-4ADC-A6D6-8DE91DDAE5D6.jpg

  2. #2
    Thought you already had one from before?

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    Quote Originally Posted by Al View Post
    Thought you already had one from before?
    Nah, I sold that after I done all the bodywork about 5 years ago.

  4. #4
    Crack on then, we're waiting

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    Get it all sandblasted to remove a zillion years of rust16FA4F91-80E4-45FA-9434-C76AC999DB08.jpg

  6. #6
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    Purchase a complete mk1 4motion/ Quattro( however you want to perceive it) running gear

    27CC339C-9118-4C32-B6C8-E1E1CC851B88.jpg
    Last edited by Elroy; 03-10-2018 at 02:48 PM.

  7. #7
    How are you going to narrow the track without upsetting the geometry, have you got a plan?

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    Just shorten the tie bars, the driveshafts will need cutting and sleeving anyhow.

  9. #9
    Im not keen on the 4mo rear end if im honest. I have looked at the setup before and shortening and I didn't like it with powernut did his. Im not saying it wont work, im just concerned that it may become a bit skitish because the control arm angles will change when shortened, there is an optimum length and the longer the better as the arc is less (ie. from sagged to compressed the track will change more the shorter the arm).

    Also the trailing arm mount wants to be right where your Caddys sill is, but the exact position will depend on your chosen track. So you will need to shorten the arms first.

    I take it you have ruled out a Syncro rear subframe?

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    I’m going to map things out this weekend, to scale.

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    Quote Originally Posted by Al View Post

    Also the trailing arm mount wants to be right where your Caddys sill is
    Yes, that sits heavy with me. The mounts are plated on to the sill, I’ve a trick up my sleeve for that.

  12. #12
    Quote Originally Posted by Elroy View Post
    Yes, that sits heavy with me. The mounts are plated on to the sill, I’ve a trick up my sleeve for that.
    Have you seen the pics of Harveys setup? He made a jig! But you would need berg arches for that!!

  13. #13
    Years ago (when everyone was hounding me to 4wd my Caddy), I looked at and studied many different options, because, no matter how much I looked at the 4mo setup I knew I would be making to many compromises

    So my Goal was to build a bolt in subframe that would house the Haldex and keep the spring & damper contained within that unit (ie. not having to punch your way through the bed or rear arches), so it would all effectively bolt in and out and mount to all the Caddys current hardware.

    I looked everywhere at new and old stuff and never found anything that would be 100% suitable from a donor vehicle. The biggest problem being the Caddys narrow track!

    Out of all of what I found, was that the MX5/Eunos/Miata setup ticked a lot of boxes for me except for the struts as its a very square compact unit. But these could be replaced for coilover units and the bottom mount lowered so that you didnt have to go through into the bed area.

    From that I thought I would build my own custom subframe but largely based around the MX5 unit and hubs (which are 4x100 with discs). But alas, that never got off the drawing board!

    But since then a lad on here fitted an MX5 rear end and it looked like it worked out well on all fronts from memory, although it was on airbags. I cannot remember his name but a search should find the build thread.

    Here are some pics I have from when I was looking:

    mx5sub1.JPG

    mx5sub2.jpg

    This is along the lines of what I wanted to build

    mx5sub3.jpg

    The only question would be; will a Haldex fit in the cradle?!!?
    Last edited by Al; 26-09-2018 at 09:49 AM.

  14. #14
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    Quote Originally Posted by Al View Post
    Have you seen the pics of Harveys setup? He made a jig! But you would need berg arches for that!!
    Yes I have, that jig’s a great idea.

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    Thinking of maybe a reinforcement chassis, that’d attach to the new longitudinal braces, that would house the boxes.., that the trailing arms would attach to

    86FBF30D-69F8-4684-AD0E-8CA08FD23DD6.jpg

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    Quote Originally Posted by Al View Post
    mx5sub3.jpg

    The only question would be; will a Haldex fit in the cradle?!!?
    Those machined top arms are interesting

  17. #17
    Quote Originally Posted by 13 View Post
    Those machined top arms are interesting
    OTT perhaps!

    In all honesty, you could choose your hubs/uprights and build from there. It just depends on how much one-off fab work you want to do, modifying a MX5 subframe would be the easiest option

  18. #18
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    I’m using the mk1 platform as it was a bargain and readily available for spares. I have considered about how shortening the tie rods will affect the suspension and performance, I guess time will tell?

  19. #19
    Just throwing things out there;

    What about something like a 924 rear end? Its basically a torsion bar setup with 2 trailing arms, then you could chop up the 4mo subframe to mount the Haldex

    Dont know what the track would be though, but probably easy enough to find out

  20. #20

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