Has anyone replaced all the trailing arm bushes (8) on an lc/lj torana.
They look arkward as they are pressed through the sides of the arms.
Any tips would be good
LC GTR rear suspension bushes
Started by
_gtr161s_
, Apr 14 2006 06:12 PM
13 replies to this topic
#2
_rorym_
_rorym_
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Posted 14 April 2006 - 09:11 PM
Doing mine now...lots of WD40 and a big hammer and pipe or socket.
R
R
#3
Toranamat69
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Posted 14 April 2006 - 10:36 PM
I made up some of these - the cut in half bits are to stop the arm from crushing as you press the bushes in as they will definately do. They go between the U channel around the bush as you press them in.
I used a press with these bits of cut up pipe but if you don't have one, you can either belt them in with a hammer or weld end plates onto these pipes and use 1/2" threaded rod with some nuts if you don't want to damage paint etc.
If you are in Brissy, you can even borrow these ones if they are boomerangs.
M@
Edit: If you weld the plates on the end of these and use the threaded rod as I describe above, it is the perfect tool for doing the ones in the diff housing too.
I used a press with these bits of cut up pipe but if you don't have one, you can either belt them in with a hammer or weld end plates onto these pipes and use 1/2" threaded rod with some nuts if you don't want to damage paint etc.
If you are in Brissy, you can even borrow these ones if they are boomerangs.
M@
Edit: If you weld the plates on the end of these and use the threaded rod as I describe above, it is the perfect tool for doing the ones in the diff housing too.
Edited by Toranamat69, 14 April 2006 - 10:40 PM.
#4
_gtr161s_
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Posted 15 April 2006 - 03:51 PM
Good tips, ive have access to a press, i came to the same idea with the half pipes but its always better when you know its tried and tested. Thanks
#5
_gtr161s_
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Posted 08 June 2006 - 07:39 AM
thought i'd add an update to the bushes, made the tools to pull them out, dead easy to remove, dont know why i never did it before.
Every rear suspension ive seen on the lc/lj's had out of shape rear bushes.
Its going to feel like new in the rear end!!
Every rear suspension ive seen on the lc/lj's had out of shape rear bushes.
Its going to feel like new in the rear end!!
#6
makka
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Posted 08 June 2006 - 04:49 PM
I hope your not replacing them all with urethane ones
#7
_munro_
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Posted 08 June 2006 - 05:18 PM
i found the easiest way to remove is with a slide hammer using a long bolt (to go through bush and a rear shockie washer
you only need to hit once unless it's really tight
tom
you only need to hit once unless it's really tight
tom
#8
superfly_GTR
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Posted 08 June 2006 - 11:05 PM
whats wrong with all urethane? im about to do them all in mine.
Matt
Matt
#9
makka
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Posted 09 June 2006 - 12:14 PM
it will handle better with some rubber in it, I think its the uppers that you use the rubber in or else it binds.
#10
_Oldn64_
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Posted 09 June 2006 - 12:18 PM
Correct Makka. At worst use urethane in teh bottom. but rubber in the top. If you do not the diff will be solid and say hello to uncontrolable rear end.it will handle better with some rubber in it, I think its the uppers that you use the rubber in or else it binds.
Cheers
#11
_gtr161s_
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Posted 09 June 2006 - 03:24 PM
Wont use urethane, find them to be to stiff.
LC's and LJ's were'nt reknown for there comfortable ride so why make them harder.
My LJ back in '87 still had its old holden rubbers and handled beautifully, i tried the urethane option when they were all the rage and found it to stiff and hard.
LC's and LJ's were'nt reknown for there comfortable ride so why make them harder.
My LJ back in '87 still had its old holden rubbers and handled beautifully, i tried the urethane option when they were all the rage and found it to stiff and hard.
#12
Toranamat69
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Posted 09 June 2006 - 04:12 PM
Superfly,
I ran all polyurethane in my rear end and after about 10,000K's the upper front bushes both split right through as the polyurethane cannot flex enough for the range of suspension travel. I can take a photo of them if you want - I stumbled across my old arms last weekend when cleaning up.
It will also effect your handling too (in a negative way) if the bushes do not allow it to move through it's range of travel. The car will be trying to lift the inside rear wheel on a turn.
Compliant rubber bushes are delibrately used for this reason when they originally designed the things.
For a pure drag car, poly would be fine all round.
M@
I ran all polyurethane in my rear end and after about 10,000K's the upper front bushes both split right through as the polyurethane cannot flex enough for the range of suspension travel. I can take a photo of them if you want - I stumbled across my old arms last weekend when cleaning up.
It will also effect your handling too (in a negative way) if the bushes do not allow it to move through it's range of travel. The car will be trying to lift the inside rear wheel on a turn.
Compliant rubber bushes are delibrately used for this reason when they originally designed the things.
For a pure drag car, poly would be fine all round.
M@
#13
_Oldn64_
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Posted 09 June 2006 - 04:50 PM
Execpt for the pure loss of traction that a stiff rear end will cause, Not to mention axle tramp as the diff tries to tear itself out of the car, very similar to the example of the one above. I would not use nolethane or any cheapo product when it comes to suspension. Even my sway bar up teh front only runs harderned rubber in the radius rods. the link D bushes are the standard rubber. Some give is good. It means things do nto bend and have a chance to last.For a pure drag car, poly would be fine all round.
Cheers
#14
_gtr161s_
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Posted 10 June 2006 - 01:34 PM
When i stripped down my lc gtr suspension the only rubbers that had been replaced was the 2 radius ones.
Both were distorted out of shape and wouldnt return to there original form whereas the other original gmh rubbers were worn out but still remained the same shape.
Says alot for urethane type rubbers!
Keep the original feel.
Both were distorted out of shape and wouldnt return to there original form whereas the other original gmh rubbers were worn out but still remained the same shape.
Says alot for urethane type rubbers!
Keep the original feel.
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