Peter Delaney
GT40s Supporter
Hi Guys,
Having now got rid of the rattles from the front suspension (O-Rings added to the sway bar pushrod rose joints- see thread titled "Sperical Joints - Ideas ? "), I have now moved on to try to address the cacaphony coming from the rear.
I'll try the O-Rings, or the rubber cups, but I suspect that the rose joints are still going to create problems, specially as they start to wear a bit. My car is really only for the road, so infinitely variable suspension is just not a big issue - once I get it to a nice compromise, it will be "set & forget".
I seem to remember that Peter Ransom was looking into some options for further use of urethane bushes in the rear end a couple of years ago - has anyone seen or tried such a setup ?
It is a good time for me to look at this - for some reason, I ended up with 3 of the major rear-end rose joints having no grease nipples, so these would need to be replaced & this would therefore be an opportune time to look at quieter alternatives.
Looking at the existing rose joint setup, it strikes me that it wouldn't be too hard to come up with urethane bushed alternatives (& even retain the adjusability by keeping the threaded rod-end concept at the back of the trailing arms, outer joints of the lower a-arm, & inner/outer top arms).
Sure, you would add some compliance to the whole setup, but not all that much with urethane, as opposed to rubber. My guess is that it would be a fairly small price to pay for a smoother, quiter ride in a road car (not forgetting that most GT40 Australia cars are running Vette front suspension with bushes anyway).
Any thoughts, comments, updated info on GT40 Austalia options ?
Kind Regards,
Peter D.
Having now got rid of the rattles from the front suspension (O-Rings added to the sway bar pushrod rose joints- see thread titled "Sperical Joints - Ideas ? "), I have now moved on to try to address the cacaphony coming from the rear.
I'll try the O-Rings, or the rubber cups, but I suspect that the rose joints are still going to create problems, specially as they start to wear a bit. My car is really only for the road, so infinitely variable suspension is just not a big issue - once I get it to a nice compromise, it will be "set & forget".
I seem to remember that Peter Ransom was looking into some options for further use of urethane bushes in the rear end a couple of years ago - has anyone seen or tried such a setup ?
It is a good time for me to look at this - for some reason, I ended up with 3 of the major rear-end rose joints having no grease nipples, so these would need to be replaced & this would therefore be an opportune time to look at quieter alternatives.
Looking at the existing rose joint setup, it strikes me that it wouldn't be too hard to come up with urethane bushed alternatives (& even retain the adjusability by keeping the threaded rod-end concept at the back of the trailing arms, outer joints of the lower a-arm, & inner/outer top arms).
Sure, you would add some compliance to the whole setup, but not all that much with urethane, as opposed to rubber. My guess is that it would be a fairly small price to pay for a smoother, quiter ride in a road car (not forgetting that most GT40 Australia cars are running Vette front suspension with bushes anyway).
Any thoughts, comments, updated info on GT40 Austalia options ?
Kind Regards,
Peter D.