Leaf spring shackle angle

[340MPR]

Hi guys,
My swinger had the original leaf springs with extended shackles that I swapped out for Dr. diff offset hanger & shackles along with new +1” springs from Espo. What do you all think of the shackle angle? Ok where it is or should I add spacers behind the shackle bracket to move the pivot point forward?
Thanks, Mike N.

 

[Treblig]

Have you driven the car for at least a few miles on the road?? Are those nylon lock nuts??

 

[GTX JOHN]

I think it is OK.
As long as shackles do not flip forward they are OK.
That being said I would add a spacer if it was on one of
my race cars.
Your bolts are questionable.

 

[Heywodja]

Have you driven the car for at least a few miles on the road?? Are those nylon lock nuts??

sure does look like the bolts don’t fully extend a few threads out the lock nut..

 

[Sublime one]

Total guess on my part but I am guessing the OP is just doing mock-up and did not want to trash the locknuts for mock-up? Thus they are just started for visual and geometry question reference?

 

[Treblig]

Until he drives it down it road a little he really won't know when the shackles will end up??

 

[dano]

as long as the shackle doesn't move past the 3 o'clock position its fine. Leafs get longer as they flatten out so as sated you need to put some miles on them.

 

[340MPR]

Yes those are the nylon locknuts that came with the Dr. diff kit. I haven’t tightened anything yet I just have them on by hand, once tightened yes there will be threads past the nuts. Still have a foot of snow on the ground here so talking it out for a drive isn’t an option for awhile yet.

 

[33IMP]

Are the tires on the ground? Car weight on the springs? If not, you have no idea where they will end up.

 

[340MPR]

Yes the tires are on the ground with full weight of the car on them.

 

[GTX JOHN]

The Superstock springs get much SHORTER in rear segment as the car lifts on initial hit
of acceleration if your pinion angle is correct!

 

[Locomotion]

I made some extra solid steel 3/4" spacers that I use on my car. You'd need longer Grade 8 bolts.

 

[Oldmanmopar]

To get more reaction you can put spacers behind the bracket. They should correct more once they settle. Otherwise for fresh install they look good

 

[340MPR]

Thanks guys, I’ll tighten everything up and see how it drives in a few months. Seeing as the shackles fall in the acceptable position I’ll let the springs settle before looking at a spacer.
Cheers, Mike N.

 

[Jeff Seighman]

I have the same shackles on my 70' Dart but Mancini +1" XHD leafs, they looked the same way, I've had them on for 6 or 7 years, they lean back a little more now, never had a problem.