Hot Rods Posies Super Slider Rear Spring Setup

'30 Model A Tudor Banger that I'm mocking up to get the rake and set up split wishbones for caster.
I bought a Posies Super Slider Reverse Eye and I'm wondering if I can take out some leaves.
1. to lower a little more. 2. improve ride.

Stock- 10 leaves .265 thick
Posies- 8 leaves .256 thick
That being said, what I'm leaving off;
Rear bumper 40 lbs
Rear fenders 26 lbs
Running boards [1/2 weight] 10 lbs
Spare tire 42 lbs
Carrier 6 lbs.
So about 125 lbs.
Likelihood of rear seat p***engers? Near Zero.

If it looks like 1 or 2 leaves could come out, Which ones? I was thinking maybe the 2 shortest ones at the top but that's just a guess on my part.





Thanks,
robj

 

On parallel leaf springs the short leaves are for support and won’t affect ride height.

 

Its guesswork. An 8 leaf spring was a roadster spring. Heavier cars and pickups had 10. The minimum they ever used was 7.

 

At least for parallel springs these are for support and removing them will affect your ride negatively. I guess you might get a little lower by taking them out but not much. Removing the longer springs is the correct way to lower your car. How their removal would affect a mono leaf I don’t know so someone more knowledgeable will need to answer.

 

The pictured spring is not a parallel spring. OP is using a traverse spring.
You're lowering the car the thickness of any spring removed as well as to what extent the spring supported. Generally, the longer the spring that is removed, the softer the ride and less support so car goes lower. You must remember to make up for the thickness of the removed springs with a spacer at the bottom of the spring so the spring u bolts can be tightened properly. Calling Posie's and talking to their friendly staff would be best as to number and which spring to remove.
Not sure what the mono spring comment is related to.

 

"Generally, the longer the spring that is removed, the softer the ride and less support so car goes lower."

That's sort of what I was wondering.
I was thinking the top 2 shorter ones just for the thickness of the leaves. and maybe one of the longer leaves to soften the ride and get a bit lower.
As it is, the only lowering I have going on in the rear are the reverse eyes.
Sorry, I forgot to state it's a Tudor.
Also, I just realized the main leaf on the Posies is noticeably thicker at .335 while all the other leaves are .256
robj

 

You're kind of limited what you can do to lower the rear of a Model A with a traverse spring.
After you get the rear spring setup to your liking as to ride quality, you may need to step the rear of the frame a little bit to get the perfect look.
https://www.bing.com/videos/rivervi...om/channel/UCE65AHlApodUmuKzE7rk8BA&FORM=VIRE

 

I have to ask why your wanting to do this. Looks like a project in progress so presumably you have no info as to height and ride in use? If it's of any use, I have a 32 3w coupe, no fenders or bumpers, which has a similar spring which, once settled, sat a little low so was spacered up about 1/2", and rides great.

You can get / make transverse spring mounts with multiple mounting heights. Not the tidiest of things but must be great to dial in a ride height.

Chris

 

OP has a Model A, not a 32 Ford. The transverse spring does not mount the same.

 

You're right, it's spring over axle, not behind. Silly me ha!

But I'd suggest that the basic considerations remain valid.

Chris