Alignment help (pic's)
Thread Starter
Instructor
Joined: May 2013
Posts: 158
Likes: 1
From: Ct
Le Mans Master
Joined: Oct 2010
Posts: 6,952
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From: melbourne florida
2023 C3 of the Year Finalist - Modified
i think you mean ZL1 not ZR1, you would need to contact VBP for that information.
i can tell you i put the 550# springs on the front and 360 # composite rear spring with QA1 shocks and there isn't a big difference it is a huge difference. but i must say one of my old springs was broken in two, and i didn't know it until we took them out.i'm sure that is a factor.
VBP will get you all the information you will need. they are good at what they do.
i can tell you i put the 550# springs on the front and 360 # composite rear spring with QA1 shocks and there isn't a big difference it is a huge difference. but i must say one of my old springs was broken in two, and i didn't know it until we took them out.i'm sure that is a factor.
VBP will get you all the information you will need. they are good at what they do.
Race Director
Joined: Sep 1999
Posts: 11,361
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From: Plano TX
Keep the springs matched.
Thread Starter
Instructor
Joined: May 2013
Posts: 158
Likes: 1
From: Ct
i think you mean ZL1 not ZR1, you would need to contact VBP for that information.
i can tell you i put the 550# springs on the front and 360 # composite rear spring with QA1 shocks and there isn't a big difference it is a huge difference. but i must say one of my old springs was broken in two, and i didn't know it until we took them out.i'm sure that is a factor.
VBP will get you all the information you will need. they are good at what they do.
i can tell you i put the 550# springs on the front and 360 # composite rear spring with QA1 shocks and there isn't a big difference it is a huge difference. but i must say one of my old springs was broken in two, and i didn't know it until we took them out.i'm sure that is a factor.
VBP will get you all the information you will need. they are good at what they do.
Actually it's ZR1 & 2, very cool. Check em out
Did it make a huge diff in handling or ride?
Zwede,
I thought so. If you go with HD all around should the frnt sw. bar be upgraded as well as adding the correct size to the rear? OR should I break down and replace the rear with a 9 leaf. It has to come out either way.. to replace the spring or the spacer.. What do you think?
Thread Starter
Instructor
Joined: May 2013
Posts: 158
Likes: 1
From: Ct
I just hope when I remove the bolts I haven't cracked the housing as some say it's a possibility.
Thanks for all your help.
I'll post when complete
Thread Starter
Instructor
Joined: May 2013
Posts: 158
Likes: 1
From: Ct
Thanks, It's a decision I have to make. On the other hand I've been driving this car for 31 years and 29K with this spring. I have no complaints about the ride.
I just hope when I remove the bolts I haven't cracked the housing as some say it's a possibility.
Thanks for all your help.
I'll post when complete
I just hope when I remove the bolts I haven't cracked the housing as some say it's a possibility.
Thanks for all your help.
I'll post when complete
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Advanced
Joined: Sep 2013
Posts: 53
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From: Pflugerville Texas
OK, geez.. I thought I solved the incorrect ride height in the rear. I still need help. What is the correct length of the rear spring hanger bolts? I can't find the answer anywhere though I did come across an offsite that alluded that 6 in was correct. Even the selling vendors say standard or extended length. After reading many threads on CF my assumption was 8 in. was standard. IS IT???????
I had the same ride height issue in the rear, I got the 8" bolts and dropped it down. I told myself it was because I don't have a spare and haven't looked any farther into it.
Thread Starter
Instructor
Joined: May 2013
Posts: 158
Likes: 1
From: Ct
I never thought of a spare. I'm sparless myself though I probably have 6 to 8 gallons of fuel on board. The ride height was determined with much less. .. maybe 1 to 2 gallons, I forgot what the AIM stated. Do you have a 7 or 9 leaf spring?
Maybe I'll start a new thread with a photo of the assembled rear titled . . Suspension Guru's "Guess what's wrong with this picture".
Thanks for the 6 inch answer.
Would you know the length of the 4 bolts that hold the spring to diff.. I believe I have the correct TRW's... My concerns is that only 5/8 +- of thread is engaged into the housing at full tourque. I noticed this during disassemble. Rule of thumb is 1.5 times the diameter of the screw/bolt for full holding power.
Last edited by PeteL46; Jul 21, 2014 at 01:25 PM.