Rear driver side sagging - springs? With pics
 

1960 Chevy C10

I can't find any reason for the driver side rear to be sagging about 2 in more than the passenger rear side.

At this point I'm willing to try new springs. But I have not found any springs for this application. What have the rest of you used or what is a good alternative?

Is there something other than springs it could be?

Thank you
*I don't know why the pictures get turned sideways

Re: Rear driver side sagging - springs? With pics
 

Why is the wheel also not positioned correctly, compared to the other side ?
( front to back )

Measure frame to ground, not body to ground.
If the frame to ground is relatively the same . It's most likely a body issue. If its not, it could be a frame or spring or ? issue.

Something odd is definitely going on there . . .

Re: Rear driver side sagging - springs? With pics
 

I will measure frame to ground then... Let me take a closer look to the spacing of the rear tires as you're pointing out maybe it's just the angle of the camera?

To me it looks like both of them look like they're too far back and I thought that was a normal thing. Long boxes the rear axle looks too far forward and short boxes they look too far back?

But let me get a better look.. it drives down the road straight though.

I will post back...

Re: Rear driver side sagging - springs? With pics
 

It might also be the elevation difference adding to the illusion. It just looks off from 1st to 2nd pic.

Re: Rear driver side sagging - springs? With pics
 

I measured the frame both sides in the same location. I measured in front of the rear axle where the frame starts to swoop upward to go over the axle. I measured just before the angled up.

The driver side measured 14 in. The passenger side measured 15 and 3/4 in. Almost 2 inch difference. This is on level cement identical tires and Wheels, no tires were low on air.

So what does that tell us? The frame is about the same 2 in from one side to the other that the wheel well to the ground is.

I would have assumed the rear springs were not identical but if the frame itself is different from the ground to the frame then what could it be?

Re: Rear driver side sagging - springs? With pics
 

With the frame being off the same amount. It verifies that it is a frame/chassis issue. And not a body ( bed ) mounting/alignment/fender issue.

Has the truck always been like this or is it a new development ?

Do the springs look the same, original or replaced. Does the coil count and spacing look the same ?

Re: Rear driver side sagging - springs? With pics
 

I've had the truck for about 3 to 4 years but just got it on the road last november. I have 80 miles on the odometer.

I took it right down to the frame.

This first photo shows the driver side coil spring. The second is the passenger side.

Both physically look to being good condition and have the same number of coils. I cannot tell if they are factory original or aftermarket. I'm not opposed to putting aftermarket springs on to try it out and probably would improve the ride anyways. Thus my question about where do I get replacement springs....?

But it is throwing me off now that the frame to floor measurements are 2 in off as well I don't know how that could be.

* I got curious so I just measured the front and the driver side is 1 inch lower than the passenger side measuring from the floor to the wheel well. I know that could be as much as just bouncing on the bumper or putting weight down on it.

Would the torsion bars have anything to do with this issue? Maybe someone in the past had moved them? I thought that only affected the front end and not the back. But I don't know for sure..

All four shocks are brand new

Re: Rear driver side sagging - springs? With pics
 

Are the front torsion bars adjustable ? ( Im not overly familiar with the 60-62's X framed trucks ) Usually at the frame mount there will be a bolt to add or reduce preload. If you've had it aligned. They should have done this for you.

A Napa or CarQuest should be able to order you stock rear springs, locally. Otherwise aftermarket if you want drop style springs.

In the second pic, it appears that the spring is angled/arc-ed forward. Where the first pic, the spring looks very straight/vertical. Do you see this in person ?

The shocks wouldn't affect ride height, unless they are damaged/bound up.

Re: Rear driver side sagging - springs? With pics
 

I do see in the picture the one spring looks a little buckled the odd thing that is on the side that's higher up than the other. I would expect the opposite.

Yes the torsion bars are adjustable I think that's where I'm going to start next. I'll put it up on the lift take the weight off and make a couple turns at a time I guess.

I did recently have it aligned and the thing that sucks is after adjusting torsion bars you're supposed to have it aligned I don't want to go through it again.

I doubt the modern Ford dealer where I had it aligned is familiar with adjusting the torsion bars and then aligning it. They were unable to do the camber because they did not have the metal spacers needed to adjust that.
*They actually told me they could order the metal spacers and have it done the same day but would add an extra $500 to the alignment bill. I laughed and drove it away with what they had been able to do and it drives straight.

I didn't know if someone had a supply for the actual springs or if everybody was using springs from an S10 pickup or some other example found to be the same...

Re: Rear driver side sagging - springs? With pics
 

It may be that the sagging rear side. Is dragging the front down " some " with it. Just because the weight balance, is going to be shifted to that side.

I would check to see if the upper spring mount bolts are in the same place. Front to back. The first pic shows another bolt hole sorta in the same vicinity. If there is something similar going on, on the other side.
The mount may just need to be unbolted and moved. With the one that looks arc-ed. And the coil mounts trying to force the ends flat. It may be forcing some preload/bind in to that spring. And its actually pushing high. ( or just not settling out )The shortest distance between two points is a straight line. But that spring, is being forced to take a different path.

Re: Rear driver side sagging - springs? With pics
 

Probably just your springs but there is more weight on the driver's side due to the spare.

I would swap the springs to see if the problem moves to the other side.

Re: Rear driver side sagging - springs? With pics
 

That's a good idea....

But if I do want to replace does anyone have a replacement set link handy or know where I can get them? Or if springs from a different make and model would work well.

I'll search again but I wasn't finding much.

Today I was going to get it up on the lift and try adjusting the torsion bars. I was thinking about back in them both out and then turning them in equally to make sure they're the same.

Or I could just do the driver side and see if I can make a change