Steve thank you so much for your Response!  You're insight and experience is priceless.

But I will have to say I do not follow the parralelogram/binding point ? 

On my 69 that I built with performance in mind, I had some really good power coming out of that 351W.....T5 Super Duty and 3.73's. I could not accelerate with spring wrap 🤣. AND that was with installing 5 BAND, slightly stronger than factory Mid Eye Leafs. 

I then installed the Shelby Style Undermounted and it was gone, now I didn't notice a difference in ride, but that may have been due to the stiffer Leafs and stronger KYB Shocks?

Can you help explain your prior message?  I really like the ride of this 68, it was made with power increases, but nothing radical.....he used a more stick suspension so the comfort is there, it just can't handle the torque

If you want try “slapper bars”. But an extra 1/2 leaf in the front of the spring pack is less obtrusive.

6sally6 wrote:

Rudi wrote:

If you want try “slapper bars”. But an extra 1/2 leaf in the front of the spring pack is less obtrusive.

Rudi is right-on again! Half leaf in front of the spring pack ...and CLAMP it down with spring clamps...in effect makes the leaf spring a traction bar preventing the spring from wrapping up when you.....
'side step it at 6 grand'!
It'll hook (or break) fer sure!!
6s6
 

 


Will this eliminate the Wheel Hop entirely?  Mine is extremely violent;

The car has what I'm assuming is a factory style 4 leaf; so adding 1 more band just on the front will fix it all?

MS wrote:

The problem is your four leaf springs are totally worn out. My 66 with a 427 and five speed, 3.50 rear gears and fairly sticky tires has zero wheel hop using a 4.5 leaf, reverse eye spring.
If you install at least a new 4 leaf spring, you won’t have problems.

Bolt-on bandaids are not going to fix your worn out springs.

 

The Thing is MS, as mentioned earlier......I built my 69 With 5 band mid eye, stiffer than stock and the wheel hop was as if they were the tired originals. I had to put track bars on. Problem solved.

This 68 was a total restore. He installed new 4 band leafs, MASSIVE Violent Wheel Hop.

If I can add a band to just the front section of the rear spring, and it will rectify my problem I will gladly do that.

M1Mustang69 wrote:

MS wrote:

The problem is your four leaf springs are totally worn out. My 66 with a 427 and five speed, 3.50 rear gears and fairly sticky tires has zero wheel hop using a 4.5 leaf, reverse eye spring.
If you install at least a new 4 leaf spring, you won’t have problems.

Bolt-on bandaids are not going to fix your worn out springs.

 

The Thing is MS, as mentioned earlier......I built my 69 With 5 band mid eye, stiffer than stock and the wheel hop was as if they were the tired originals. I had to put track bars on. Problem solved.

This 68 was a total restore. He installed new 4 band leafs, MASSIVE Violent Wheel Hop.

If I can add a band to just the front section of the rear spring, and it will rectify my problem I will gladly do that.

 
What tires and shocks are you running?  Your replacement of springs has not achieved the same results I have enjoyed.