Page 1 of 5 123 ... LastLast
Results 1 to 10 of 44

Thread: Redesigned series shocker mounts.

  1. #1
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,386

    Redesigned series shocker mounts.

    Converted my Series3 Lightweight over to Parabolics recently, it rides terrific but found the articulation is no better than with the cart springs. The standard shockers are limiting the down travel.

    I don't think +50 shockers are the answer as they will bottom out unless you lower the bump stops, so you dont really gain anything.

    So I'm installing P38 Front Shockers , front & rear .

    They are 3" longer compressed and 5" longer extended than the standard 88" front shockers. The top mount needs to be raised 3" and will result in 2" more down travel.

    Also mounting the shocker pivot fore-aft instead of left-right will prevent the binding of the bushings from limiting articulation.




    .

  2. #2
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,386
    New bottom spring plate made from 10mm and the upper mount from 6mm




    Original shocker mount needs to be cut off , the new bracket is welded to it so that its still supported through to the other side of the chassis rail.







  3. #3
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,386
    The rear mounts will be thus , on the inside off the springs , with the pins pointing rearward. Top of the shockers will be mounted above the diff like a FJ40 . I have no exhaust so its just wasted space at the moment.




    Ive edited this picture of a similar setup to what I propose. Being mounted inside the chassis will allow greater articulation for the same length shocker if it was mounted inn the original position outside the chassis.

  4. #4
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,077
    GB
    Having not played with parabolics, do they cycle the shackle like “normal” leafs do
    With your upper eye orientation, is there a risk of the damper colliding with your upper bracket as the shackle tilts backward and fishplate moves rearward?

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  5. #5
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,386
    Quote Originally Posted by roverrescue View Post
    GB
    Having not played with parabolics, do they cycle the shackle like “normal” leafs do
    With your upper eye orientation, is there a risk of the damper colliding with your upper bracket as the shackle tilts backward and fishplate moves rearward?

    S
    Good point. I don't want to lift the vehicle from standard, it has short civvy shackles . The bottom of the shocker will move rearward about 35mm on full bump , theres 10mm clearance at the top where there will be no movement. the sides of the upper bracket taper toward the chassis as the shocker cants out toward the bottom. I don't think it will touch but if it does I can adjust the two 15mm spacers I have each side of the top mount and change to 10mm front 20mm at the rear. Or I could just remove the top cover of the shocker if its a problem. I'll definitely monitor it .

    This is the rear but you can see the shackle angles parked on a 'ramp' , front is not going to cycle as much due to shorter spring length. note left rear shock is fully extended and keeping the wheel off the ground.


  6. #6
    Join Date
    Dec 2006
    Location
    Harper Creek
    Posts
    3,077
    35mm on bump
    Seems like you’ve accounted and measured it!
    The top bush should cope fine with that angular misalignment!

    I like the rear setup

    Looks like fun, do you have your own plasma table and pressbrake?

    S
    '95 130 dual cab fender (gone to a better universe)
    '10 130 dual cab fender (getting to know it's neurons)

  7. #7
    Join Date
    Jul 2011
    Location
    Yarrawonga, Vic
    Posts
    5,386
    Quote Originally Posted by roverrescue View Post
    35mm on bump
    Seems like you’ve accounted and measured it!
    The top bush should cope fine with that angular misalignment!

    I like the rear setup

    Looks like fun, do you have your own plasma table and pressbrake?

    S
    I went out and put the car up on diagonal ramps just to be sure , theres a good bit of clearance between the shock tube and bracket with the axle on the bump stop. So all good .

    I have a cheapy handheld plasma which I rarely use, I took my CAD files to the local engineer they do a good job for not much more than the steel would cost me.

  8. #8
    Join Date
    Apr 2011
    Location
    Wandong,Victoria,Australia
    Posts
    2,265
    I often look at other 4WD’s when sitting at traffic lights (I do that a fair bit on my daily commute). I have always wondered - why do some 4WD’s have one shock mounted in front of the rear axle and one mounted behind.

    But others have both shocks mounted either in front of the rear axke or behind the rear axle??

    Thoughts?
    54 Series 1 86
    60 Series 2 88
    61 Series 2 109
    76 2 Door Range Rover
    78 101 Forward Control
    83 Stage 1 V8
    88 Perentie FFR
    90 4 Door Range Rover
    93 Discovery 1 200 Tdi
    98 Freelander 1

  9. #9
    Join Date
    Jan 1970
    Location
    Central West NSW
    Posts
    22,796
    Not just four wheel drives, and my understanding is it is to damp the twisting of the axle, especially an issue where there is rubber isolation between the spring and the axle or where the springs are relatively soft compared to available torque.
    John

    JDNSW
    1986 110 County 3.9 diesel
    1970 2a 109 2.25 petrol

  10. #10
    Join Date
    Apr 2011
    Location
    Wandong,Victoria,Australia
    Posts
    2,265
    I had thought that it had something to do with the axle twisting. Thanks John.
    54 Series 1 86
    60 Series 2 88
    61 Series 2 109
    76 2 Door Range Rover
    78 101 Forward Control
    83 Stage 1 V8
    88 Perentie FFR
    90 4 Door Range Rover
    93 Discovery 1 200 Tdi
    98 Freelander 1

Page 1 of 5 123 ... LastLast

Tags for this Thread

Bookmarks

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Search AULRO.com ONLY!
Search All the Web!