I wanna buy a new fiberglass spring from them to get rid of my trw spring.
I´m thinking about the 330 or 340 lbs (whatever) spring, because that would be the best match for my 550 front coils.
But then again I remember guys who bought the 300 lbs in combo with the 550 and they were pretty happy with it.

The point is that the rear of my car is much to high right now with that damn TRW spring, and some say that the 300 lbs VBP spring will give a lower ride than the 340 lbs.
Considering that the arc of the spring should change from 300 to 340 lbs ride height should stay the same, but most of us know the maga long thread about TRW - and I want to hear some experiences before buying another, maybe useless, spring.

Spring rate is not so important to me. If you look at the original spring rate of the ghymkana package the rear spring wasn´t that hard at all - at least I remember something like that...
Whatever - I use big swaybars anyway

Curious to hear your experiences
As always, Markus

 

Markus one of the things that helps the handling of any car is the ability to allow the tires to follow the road. If a car has springs that are too stiff, they can cause the tires to bounce and actually leave the raod surface. Your best grip is going to be when all tires are firmly planted on the road so this is less than ideal.

That being said, you want springs that allow the cars suspension to use it's travel without bottoming out. The way you can decrease body lean is through the use of bigger swaybars. This will allow the suspension to move freely up & down and give a softer ride on a smooth road surface. On an irregular road surface, your suspension will feel much stiffer as the car tries and twist the larger swaybars. A good way to demonstrat this is to go over train tracks both straight & then from an angle, you'll feel the difference as you cross over them.

I believe my VBP street & slalom kit came with 550lb front coil springs with a 360lb composite resr spring. I liked the idea of buying a suspension package that someone else has been able to do the research and put together what works together. In your case, you can match components for similar results

As far as lowering the rear car height, VBP also offers longer bolts for the ends of the leaf spring which allows you the custom tailor the height to your preferences

www.vbandp.com

 

i've run 460 front springs and 330 lb rear spring from vbp since 96, no problems. ride height is normal. i have a L-48 350 in my 79, and the 330 spring is fine. sometiimes it gets a little bouncy and the car really squats under hard dead take off, i have only a front stabilizer bar in mine, nothing in the rear.

 

Ditto Gary 79, only in my '72 convert......

say this though, I tried going back to a steel spring due to some comments on this forum, waste of time....

HUGE improvement....

maybe with I had Bilsteins instead of KYB's on there...but that's life...hate spending 100 bux/shock seems extreme to me..

GENE

 

markus - I would try longer bolts to lower the rear.

I had 340 or 360 rears and I had way to much rear squat drag racing with slicks. It's been so long ago that i can't remember if I had Rear Smart Struts or not at the time. So I went back to 420+ lbs steel

 

Markus,
I have the TRW 340# spring and had to use longer bolts (10" if my memory is right) to get the rear end down. The TRW springs have much more arch than the VB&P units. I am using the 340# rear with 460# coils and it rides fine.

 

Markus,
Your profile indicates that you have a 6 link IRS. If this means a guldstrand setup, you should install a steel spring per guldstrand's recommendation.
If this means a do it yourself setup with upper strut rods and no clips on diff yokes, a fiberglass spring should be fine.
I have used 3 VB springs over the years (315, 340 and a shortened 340 estimated at 365lbs) and a single 315 TRW. I ran it with OE front springs, 460 fronts and now the VB front transverse spring set at about 450.
I kept going back to the TRW for ride quality. I could not get a balance between front and rear that would not bounce and/or oscillate with the VBs.
Although the TRW requires longer bolts which can cause some tire sidewall interference, it has given me the best combo of ride quality and performance. With 17" tires, smart struts and proper stabars, my 71 383 vert performs very well.

 

If you are unsure of what spring to get, then try the dual mount. It is alittle more expensive but very nice. You can pick 4 different spring rates. It probably take 20 minutes to switch from 1 springrate to another.

 

Markus,

Interested in selling the TRW spring (if you do go with the VBP spring)? I want the VBP sring, but dont think it will be in the budget until next year. In the mean time, I was thinking of a stock steel spring, but a used glass spring would be great!

Anything would be better than my 25 year old flat spring that lets my exhaust scrape on every freeway dip!!! YIKES!

~Kevin

 

Thanks for all your comments, guys
I am sorry for writing back so late, but I´m really busy the moment, planning to build a house :O)

My 6-link is a self made construction, maybe I´ll buy the dual mount spring, although the setup indicates that spring movement on one side will affect the other side of the spring as well, cause the mounting points seem to be able to rotate during the compression of the spring.
Nevertheless I hope to finish my car soon, need the time for more important things at the moment ;o)

Thanks again
Markus

 

I have 2 TRW springs that I will sell cheap. One I tried on my car and the other a friend gave me. I'll give you fair warning though, they will raise the rear about 3".

 

Kid: which spring did you end up going with? I'm still not very happy with the ride height vs tire clearance tradeoff with my TRW spring.

 

Kid Vette-

I just sent you a PM regarding your TRW springs...
I need SOMETHING! Did the rear differential fluid change this weekend and got a really good look at just how bad my spring is... no arch to it at all! On a plus side, my rear end is even with my front- and I just dropped the front 2"!!!!

~Kevin

 

Markus

I have the VBP 330 and love it... definitely a ride improvement and tracks the corners much better... As though the tires are keeping contact much more consistently now.

 

So true . I don't think I could ever do
away with a dual mount set up. I love the hell out
of it Exspensive, but well worth it