1979 right height confusion
Intermediate
Joined: Mar 2006
Posts: 49
Likes: 2
From: Boston MA
Spring Bolts
[QUOTE=Metalhead140;1591833357]My 79 when I bought it, stock gymkhana suspension, rear sitting a bit low due to flogged spring bolt bushes, 255/60r15s on all 4 corners:
And as it sat in January after a complete suspension, brakes, steering and rear end rebuild, at [B]17x9.5 wheels with 255/50r17s on all 4 corners. Just over a coil cut off each front spring, shortened main leaf and 8" spring bolts in the rear.
I have just put 275 50 17 tires on 17 x 9.5 wheels and the rear spring is very close to the inner wheel rim. I have a fiberglass rear spring and what is the standard size spring bolt on the spring. If I could shorten the bolt it would lift the spring away from the inner wheel well.
And as it sat in January after a complete suspension, brakes, steering and rear end rebuild, at [B]17x9.5 wheels with 255/50r17s on all 4 corners. Just over a coil cut off each front spring, shortened main leaf and 8" spring bolts in the rear.
I have just put 275 50 17 tires on 17 x 9.5 wheels and the rear spring is very close to the inner wheel rim. I have a fiberglass rear spring and what is the standard size spring bolt on the spring. If I could shorten the bolt it would lift the spring away from the inner wheel well.
Last edited by 72 Stinger; Mar 27, 2016 at 02:30 PM.
Le Mans Master
Joined: Oct 2010
Posts: 6,936
Likes: 848
From: melbourne florida
2023 C3 of the Year Finalist - Modified
My 79 came from the factory with 255/60-15 tires and so did many others.
I have the 550 front springs with3/4 of a coil cut. I have the 360 pound rear spring. It sits nice and low up front but haven't had any problem.
Years ago an old spring guy told me a good rule of thumb is if you want to lower it say 1 inch cut 1 inch off the total height of the spring. Always worked for me.
I have the 550 front springs with3/4 of a coil cut. I have the 360 pound rear spring. It sits nice and low up front but haven't had any problem.
Years ago an old spring guy told me a good rule of thumb is if you want to lower it say 1 inch cut 1 inch off the total height of the spring. Always worked for me.
Drifting
Joined: Aug 2015
Posts: 1,939
Likes: 477
From: NSW, Australia
C3 of Year Finalist (track prepared) 2019
I have just put 275 50 17 tires on 17 x 9.5 wheels and the rear spring is very close to the inner wheel rim. I have a fiberglass rear spring and what is the standard size spring bolt on the spring. If I could shorten the bolt it would lift the spring away from the inner wheel well.
Thread Starter
Intermediate
Joined: Feb 2015
Posts: 25
Likes: 0
Thank you everyone for your help
I now understand and have mostly corrected my ride height issue. Still waiting on my VB&P 360# rear monos which will complete this process. Front is sitting nicely at 27 inches and when my new rear spring comes I should be able to drop the rear to my desired height. Probably between 1 to 1 1/2 inch drop.
Attached is how it sits right now without the new rear mono spring.
Thanks again for your help.
Kevin
Attached is how it sits right now without the new rear mono spring.
Thanks again for your help.
Kevin
