Comparing Spring Relocate Kits

There are obvious differences seen in the pictures (see links). But why the large price difference?

The Mancini MP example shown doesn't have any holes. I've seen pictures of MP hangers with 4 holes. Looks like 2 are for a different front segment length than the other 2.

The USCarTools kit has 3 holes vertically.

So the Cartools kit would be more adjustable.

I'm using the Caltracs that they sell for relocated springs (they ask for the relocate kit used to provide the correct hanger). It'll be about 3000#, 400 hp, foot braked auto, 6 cyl leafs.

manciniabody.html
Mopar A-Body 67-75 Spring Hanger Re-Location Kit