|
Post by mongoose on Aug 28, 2010 6:34:17 GMT -5
What's the factory ride height and tire size for a '65 Cutlass convertible? Where are the measurements taken from?
Years ago I cut the front and rear springs to get the ride height and rake I wanted, but now I want to improve the front end geometry by using 2" drop spindles and then order a set of springs that will provide the same height I have today.
|
|
|
Post by mongoose on Aug 31, 2010 7:35:17 GMT -5
Anyone?
|
|
|
Post by bubbasz1 on Aug 31, 2010 10:32:27 GMT -5
Don't know if that is written down in any of the books. Will have to do some exploring which might take some time.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Aug 31, 2010 11:33:33 GMT -5
my hardtop sat 24" to the front fender lip and 22-3/4" to the rear fender lip with the factory suspension.
|
|
|
Post by mongoose on Aug 31, 2010 12:52:13 GMT -5
ok... Thanks all for whatever information you find. I figured at least a few of you have totally restored cars, and if nothing else you would have or could take measurements off your car. I looked through the '65 Assembly Manual, but didn't find any reference to ride height. Worse case I can use the fender lip heights provided by OldSpeed, but the front fenders are off the car (and what better time to do some suspension work!) so I was hoping for some clearance measurements at the frame... like at the points under the firewall and in front of the rear wheel housing (like maybe below the body mounts?). Geez... now I'm being particular on the information I'm looking for!
|
|
|
Post by bubbasz1 on Aug 31, 2010 13:03:52 GMT -5
I don't know what kind of information you might receive that actually is correct/ or not correct, whose to say. They all will vary with what options the car has plus some members have incorrect springs in their vehicles because they didn't like the way they sat from the factory. Personally I think your liable to get a large variance in ride heights, should be interesting to see.
|
|
|
Post by BR[] on Aug 31, 2010 15:02:59 GMT -5
Not to sound stupid, BUT why lower the front 2" with the spindles and the want longer springs to get it back to the original ride height? ?? Eaton spring can tell you exactly what the car came with and give you a spring that will raise it exactly to the height you want.
Eaton Detroit Spring 1555 Michigan Ave. Detroit, MI 48216 (313) 963-7047 (313) 963-7047 (fax) Leaf and coil springs for all models
|
|
|
Post by mongoose on Sept 1, 2010 4:23:15 GMT -5
BRO... I think you're missing for what I'm going for here. At one point years ago I had adjusted the ride height by cutting the springs. I really like the ride height it has now, but the result also makes the car very difficult to get proper alignment, and the upper control arms require so many shims that I have issues with the control arms crushing into the headers.
So my thought is to use drop spindles and (hopefully) close to a factory height spring so that I can replicate the ride height I've got and remove the alignment issues.
And I also know that its better to get a spring made for a certain ride height instead of cutting coils. So I'm trying to figure out what the "stock" starting point is, so that I can seek out springs made to give me the drop I want without having to cut any coils.
Am I over-engineering this?
But you raise a good point. Perhaps I can call Eaton (or some other spring manufacturer) and tell them how high I want the car to sit front and rear, and they can recommend the springs to make that happen, with me having to worry about how much drop I'm looking for.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Sept 1, 2010 7:49:46 GMT -5
I don't know what kind of information you might receive that actually is correct/ or not correct, whose to say. They all will vary with what options the car has plus some members have incorrect springs in their vehicles because they didn't like the way they sat from the factory. Personally I think your liable to get a large variance in ride heights, should be interesting to see. i am not saying that my car is what it was the day it left factory, i am just saying it had the stock suspension and i measured the height of the fender lips. dont take it for gospel, but maybe it can be used as a referance.
|
|
|
Post by bubbasz1 on Sept 1, 2010 19:16:08 GMT -5
Well, just as a FYI I picked up a set of springs today for the front end of the vert, should be about a 1/2 inch higher than a standard spring for ride height. We'll see in a couple of years when it gets some weight on it. Sad how the old ballpark is gone, at least they could cut the weeds down. (BTW Eaton Spring is across the street from what used to be Tiger Stadium)
|
|
|
Post by Big Mike on Sept 2, 2010 0:17:07 GMT -5
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Sept 2, 2010 11:30:52 GMT -5
the thing of it is though, there is always going to a +/- on the height. there are so many factors that could change it... no matter what we figure it should be for that car, it is going to be whatever it ends up for each particular car, be it higher or lower. plus it is going to squat with time just from the springs seating and then starting to wear out. ballpark is the best anyone can do.
|
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on Jul 28, 2020 6:33:44 GMT -5
my hardtop sat 24" to the front fender lip and 22-3/4" to the rear fender lip with the factory suspension. When you mention Fender Lip, do you mean the lip along the wheel well with the chrome? Thanks! I realize this is a really old thread, but my dad just had new springs installed because the car was lowered at some point. The replacement springs were the wrong size. Now just trying to figure how to get it back to factory ride heigth. Thanks for the help.
|
|
|
Post by joepadavano on Jul 28, 2020 8:16:36 GMT -5
The "Carrying Height" dimensions and specific measurement locations are shown in the 1965 Chassis Service Manual, page 9-108, figure 9-113. There's no ambiguity. Measurements are taken at the bottom of the rockers on the flat parts, which is very repeatable. Fender lip openings vary depending on how the fenders are shimmed. The CSM also details exactly how the car is to be loaded so the measurement is repeatable.
|
|
|
Post by island65cruiser on Jul 28, 2020 17:57:41 GMT -5
BRO already answered the question. Eaton Spring has the answer, they have stock, heavy duty, and 1" increased ride height springs for our cars. They made the OEM springs. Why not go to the source?
|
|
|
Post by mongoose on Aug 5, 2020 18:30:24 GMT -5
Damn... this IS an old thread, and I started the damn thing.
|
|