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rear A frame sus designs (i wanna make one)

Posted: Wed May 24, 2006 12:49 am
by SiKiD_01
i've just spent about an hour looking for peoples' designs and pics of rear A frames, and havent found much. there were a few pics here and there, but no close ups, or good ones that i can see clearly.

so, if any one has any pics, could they please post up for me.

Q's:

what joint/bush is more common for the 3rd joint (A frame to diff) a heim/rose joint? (like a tie rod end?) or just a normal rubber bush?

what size heim joint would be good? or more commonly used?

what bushes to use for the chassis end of the A frame?

what size tubing for the frame? OD, ID, wall thickness? and would this also be the same as the lower tailing arms?

i am going to make this for the rear of my vitara, and i might be moving the diff back 1" if 33"s clear the back corners. otherwise i will leave it as is, and replace just the stock upper A arm. (i have popped 2 ball joints out)

i saw the 4wdMonthly article on Sam's SAS vit, and he has a hein joint fixed on the diff end (welded). would the heim joint allow enough angle when twisting up?

i think i'm leaning more towards 3 bushes, but a full rotating diff end bush, something similar to the swivel end of a TREG hitch on a trailer. and for the bushes, i was thinking about the nissan GQ lower trailing arm bushes. something like this:

Image
Image
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this would be awesome, and no doubt it is, but i just cant afford it. so i'm going to make my own, only not as good or detailed.

i'm sort of more against the use of a heim joint, or re-buildable sphereracle bushes mainly beacause i drive a lot of water, mud, and heaps of dust.

any help would be great, thanks.

Posted: Wed May 24, 2006 1:26 am
by bazooked
i bought my coil kit of sam @ overkill, all the ends use nissan patrol bushes. if ya gonna be still doin alot of road driving i would highly recomend them and they flex alot aswell.

Posted: Wed May 24, 2006 8:02 am
by Bad JuJu
Look at a coiled Landrover/Rangerover/Disco Im sure they have this in the rear and they can flex..
Also A SWB might cave a good set of measurements you can start from (similar wheelbase??)

Posted: Wed May 24, 2006 9:50 am
by Klappers
Search is your friend
I have lots of photos of the A frame rear end that i use to have.... I will try to find the link. The A frame was stright from a Rangie :) All the hard work was already done...

http://www.outerlimits4x4.com/PHP_Modul ... hp?t=64598

Posted: Wed May 24, 2006 11:40 am
by SiKiD_01
a lot of pics aren't working atm.

is 30mm OD tube with 4mm wall thickness strong enough? can i use this on the A frame and the lower trailing arms? or should i use something a bit bigger?

i was planning on using the above tube for the A frame, and if i could, i would make new lower trailing arms. i just dont want to buy a length of everything.

thanks

Posted: Wed May 24, 2006 12:03 pm
by nicbeer
Look at Mud4bs in the forsale section.

Nic