I have a 49 chevy ½ ton PU. I put a TCI mustang suspension with drop spindles on the front 2 years ago.
My present rear end had the springs under the axle with 1” blocks. With the new front I had too much rake. I took my springs off and found out the eye holes, shackles were worn out as well as springs being gouged. I rework the springs and took some leafs out for a smoother ride.
I ended up putting 3 ½ blocks to get the rake that I wanted. Could of used more but that is all it could handle. Any how the springs are not rebounding to its full height. I tried more spring and different combinations and just not rebound to it full height. I called St Louis Spring company and they can get me new springs for $128.00 a side. He told me he could De-arch them from the original 7 “ arch and this might lower the truck more. Finally to my question: Has anyone had springs de-arched and is 3 ½ blocks any kind of a safety factor. I know there is other alternatives to lowering the truck but my budget is only around $300 to $ 400 for this
Mark