MORE REAR FIBERGLASS SPRING ?????????
Thread Starter
Racer
Joined: Oct 2001
Posts: 412
Likes: 0
From: Monroe North Carolina
MORE REAR FIBERGLASS SPRING ?????????
MY Rear spring is curved in an "S" pattern i dont know if this is normal or not. The spring was installed professionally and the ride hieght is very low.
Also what is this about the half shafts being straight is not good they need to be in an angle what is the truth in this? If i knew how to post pic. i would im still trying to figure iut out. :confused: :confused: :confused:
Also what is this about the half shafts being straight is not good they need to be in an angle what is the truth in this? If i knew how to post pic. i would im still trying to figure iut out. :confused: :confused: :confused:
Race Director
Joined: Nov 1999
Posts: 10,643
Likes: 8
From: Foxfield CO 1970 Convertible
Re: MORE REAR FIBERGLASS SPRING ????????? (Corvettelvr73)
I believe the slight S shape is normal.
Who told you the half shafts were supposed to be at an angle? What angle are they referring to? The half shafts are constantly changing angle as you drive the car....
Who told you the half shafts were supposed to be at an angle? What angle are they referring to? The half shafts are constantly changing angle as you drive the car....
Le Mans Master
Joined: Aug 2000
Posts: 6,273
Likes: 14
From: Austin TX
Re: MORE REAR FIBERGLASS SPRING ????????? (Corvettelvr73)
I have been told by a long time C3er road racer (130mph plus) that the half shafts must be at least 3 degrees down from level for the u joints to work properly. If less than this they bind internally.
I've been running mine horizontal for a couple of years and had no problem.
I've been running mine horizontal for a couple of years and had no problem.
Safety Car
Joined: Mar 2000
Posts: 4,078
Likes: 27
From: Northeast South Dakota
Re: MORE REAR FIBERGLASS SPRING ????????? (flynhi)
The half shaft thing sounds like a load of crap to me. I think they should be close to straight, that leaves some room each way for suspension movement. I would think that the spring would have a slight S shape as the center bends down and the ends bend up, but I don't know for sure. I just installed my glass spring and haven't driven it yet.
-Justin
-Justin
Instructor
Joined: Oct 1999
Posts: 217
Likes: 0
From: Houston TX
Re: MORE REAR FIBERGLASS SPRING ????????? (Dalannex)
I have heard before that U-joints are never supposed to be straight but always installed a few degrees off. I'm building an engine dyno right now for the University of Texas- Austin, and this is one of the problems we are overcoming right now.
Thread Starter
Racer
Joined: Oct 2001
Posts: 412
Likes: 0
From: Monroe North Carolina
Re: MORE REAR FIBERGLASS SPRING ????????? (mastiff)
I am not sure what the spring is ratd at but it came in the Performance Plus suspension kit. Also my halfshafts are angled up not down because the ride hieght is so low. Is this bad? There is some angle to them just the opposite direction.
Guest
Posts: n/a
Re: MORE REAR FIBERGLASS SPRING ????????? (Corvettelvr73)
Is your spring twisted or curved lower at the driver side wheel then up between wheel and rear then down where it connects to rear and then up after rear and down again by passenger side tire? Do you have a heat shield between your exhaust and the spring? The way you lower your rear is with longer bolts. If the diff is lower than the connection at the tire I'd go back to the installer and tell him you want a stronger spring. That is of course that he did install a heat shield and your spring is not just melting.. :eek:
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Thread Starter
Racer
Joined: Oct 2001
Posts: 412
Likes: 0
From: Monroe North Carolina
Re: MORE REAR FIBERGLASS SPRING ????????? (Koz)
My spring is the dual mount type. From the drivers side it curves up then between the 2 mounts it curves down then up like a "U" adn from the 2nd mount to the passengers side it curves down and matches the drivers side. The sides look normal but in the middle the spring looks like there is too much curveage.
Burning Brakes
Joined: Oct 2002
Posts: 1,040
Likes: 109
Re: MORE REAR FIBERGLASS SPRING ????????? (Corvettelvr73)
just finished install of total VBP spring front and rear mine are also curved
looks normal to me
this isn't a steel spring it's going to act different,i don't see a problem
seventy1
looks normal to me
this isn't a steel spring it's going to act different,i don't see a problem
seventy1
Racer
Joined: Oct 2002
Posts: 328
Likes: 0
From: Marlborough MA
Re: MORE REAR FIBERGLASS SPRING ????????? (1971corvette)
I thought the angle for the half-shafts was so the bearings in the U-joints were contantly spinning. If you have the shafts horizontal, the U-joints are stationary unless the suspension goes into jounce or rebound. If the bearings sit in one spot for too long, I guess you could get the rollers "denting" the bearing races.
