[hastobecool]

I've decided to go with coil overs on my 31 ford and 9 inch rears, now I'm trying to decide on the correct size as in length and weight, any one have suggestions for me or can tell me how to figure it ?? thanks

[OneMoreTime]

Speedway motors has a chart for the spring rates and their catalog can be very informative..

Sam

[The Flyin Wop]

Also Welder Series.com has a catolog and they make all sorts of brakets that can help you with setup and at what angle to weld the lower coilover mounts.
CW is the guys name,he's also on u-tube.Good guys to talk to.Prices are very good,and he gladlyt takes your call for info.
On my site theflyinwop.com, I have posted with pictures of my 9 inch setup with coil overs centered on the rear, and I talk about angles there.Just go to my archives.If you like or dislike what you see,leave me a comment on the site.
Good luck,
Paisano

[Irelands child]

As Sam said above, Speedway's chart (actually it's AFCO) works well. You do have to dig in for it though.

This is what I'm using on my '31 roadster with a '32 style gas tank - 10" rear springs AFCO CR23200 which are 200 pound rated but actually 188 pounds @13 mounting angle to the 9" rear end. They seem to be about perfect for my car. It originally had super heavy variable ratio springs supplied by TCI - and it rode like a farm wagon

[cboy]

Originally Posted by OneMoreTime

Speedway motors has a chart for the spring rates and their catalog can be very informative..

For an even more accurate spring rate, you can call Speedway's tech/sales and they will walk you through the process. Might even be able to email their tech guys in place of calling...very helpful in my experience. Keep in mind, however, that it is best if you have pinpointed the front and rear weight of the car before you contact them. Yes, you can guesstimate, but if you are off too far it can really mess up your spring rates and be the difference between a firm, sweet ride and a box of bricks.

[hastobecool]

Hey guys, thanks for all the help