Mono Leaf Springs

I have recently acquired a 51 ford that I was told has a newly rebuild mothr, transmission, clutch and pressure plate and rear end. The car shutters to the point of shaking itself apart in reverse and first gears. Before I pull the transmission to replace the clutch, I was wondering if I should be considering rear end "wind up".

The rear end currently sits on 6" lowering blocks that are mounted to Mono Leaf springs.

If anybody need addition information to make a suggestion, let me know and I will do what I can to get the information together.

In the mean time, I would like to thank you in advance for any ideas you might have.

Regards from SLC...........Dave

 

Pictures of the car would be nice. My old '49 Ford had a mono spring flipped upside down to get the car so low. Never had a problem with the spring winding up. I did have bags on back to get in and out of driveways though.

 

Check engine mounts, cable or linkage binding, all of them are also a reasons for clutch vibration, but most likely to be a poor set-up/repair.

 

Chev used mono leafs in the Chevy II and Nova with no issues but when they used them in the Camaro they had windup problems. Only because Camaro drivers pounded them a lot harder.

In other words yes they can wind up but only under severe pressure. If your car shudders under normal takeoff it is more likely something else. Look at the motor mounts first.

Incidentally spring windup can be controlled by staggering the shocks (one in front, one behind the axle) or adding a link between the axle housing and frame.

 

That is all true, but he has SIX INCH lowering blocks on top of his springs and I suspect they aren't true mono shocks but rather just a main leaf with all other leaves removed. In this case those crazy long lowering blocks are acting like levers on the springs.
I think those two factors are contributing to and greatly magnifying a small problem with clutch chatter, probably because I once owned a '50 Ford coupe with a small clutch chatter problem that eventually went away (but with stock springs and no lowering blocks it did NOT shake the car violently).

 

mono leaf with 6" blocks sounds like alot of axle wrap. something just does not seem right about a mono leaf, although i have not heard of them failing.