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Lengthening rangie trailing arms - Updated!
Posted: Tue Jul 01, 2003 10:17 pm
by Damo
I'm getting to the business end of the rear suspension on my zook and now want to lengthen the trailing arms.
Initially I was going to sleeve them but anyone I have talked to so far has told me just to cut the arm, get the same diameter tube and weld them together just butted up.
This doesn't seem like it would be too strong to me but as a few people have told me it should work fine i'm having 2nd thoughts.
What have y'all done in this situation???
Posted: Wed Jul 02, 2003 7:43 am
by HSV Rangie
Thats the bootie fab way.
I use 40*20 dom tube for my rear links.
Regards
Michael.
Posted: Wed Jul 02, 2003 10:19 am
by Damo
Are they built from scratch?
I dont want to start from a clean slate, I want to extend the ones I have.
Posted: Wed Jul 02, 2003 10:56 am
by HSV Rangie
Yep made from scratch.
If you dont want to start from blank, then you are left with reusing the existing components.
Go with your origonal option.
Michael.
Posted: Wed Jul 02, 2003 7:49 pm
by Bush65
Get some hollow bar or seamless pipe that is a neat fit over the outside of the body of your existing arms.
Cut the arms in half, near the mid point.
Cut the hollow bar/seamless pipe to suit the new length of the trailing arm. Shape both ends like a vee ie <======> (or >======< ) with rounded points - square cut ends are worse for fatigue.
Slip the halves of the old trailing arm into the hollow bar/seamless pipe. Align the ends, adust the overall length and weld the parts together.
Posted: Wed Jul 02, 2003 8:25 pm
by Damo
Yeah, I am leaning toward the sleeve idea. I have measured the arms with a vernier and they're 30mm OD. Is there something available in 30mm ID with about 2 or 3mm wall?
Posted: Wed Jul 02, 2003 8:58 pm
by Strange Rover
also check out the thread
http://www.outerlimits4x4.com/PHP_Modules/phpBB2/viewtopic.php?t=2049&highlight=arms
about lengthing the arms - basically the same as whats being said here.
Sam
Posted: Fri Jul 04, 2003 6:57 pm
by Bush65
Damo wrote:Yeah, I am leaning toward the sleeve idea. I have measured the arms with a vernier and they're 30mm OD. Is there something available in 30mm ID with about 2 or 3mm wall?
38 od x 4 wt cold drawn seamless tubing
45 od x 32 id hollow bar
42.2 od x 4.85 wt (DN32 schedule 180) seamless pipe
Posted: Sun Jul 06, 2003 6:45 am
by Damo
Bush65 wrote:38 od x 4 wt cold drawn seamless tubing
45 od x 32 id hollow bar
42.2 od x 4.85 wt (DN32 schedule 180) seamless pipe
Thanks Bush65!!! I'll try track down some 38 od x 4 wt CDS and give that a go.
Lengthening trailing arms
Posted: Mon Jul 07, 2003 10:07 pm
by The Lifter
I used 30mm I.D.10mm wall thickness hydraulic tube on mine 2 years ago and haven't had any problems.
Posted: Thu Jul 17, 2003 11:41 am
by Damo
Damo wrote:Bush65 wrote:38 od x 4 wt cold drawn seamless tubing
45 od x 32 id hollow bar
42.2 od x 4.85 wt (DN32 schedule 180) seamless pipe
Thanks Bush65!!! I'll try track down some 38 od x 4 wt CDS and give that a go.
Found the CDS tube in the correct dimensions. Problem is I can only get it in a 6.1m length. Anyone want to buy some tube to sleeve their arms? $15/meter, 4 meters available, u pay freight. BTW, 6.1m length is costin me $100.
OR if anyone has a couple of meters of this stuff around are they willing to part with it???
Posted: Wed Sep 03, 2003 12:34 pm
by Damo