Center hump problem

[71 super]

Lay the hump (high hump) on the low hump cab, mark and drill the holes you need to bolt the hump in then use the stamped lines in the low hump cab to cut out the low hump floor. I had to do this for my 4x4 as the original cab was junk, found great 3/4 ton auto truck trimed the hump, instant new 4x4 cab. This is not a big deal just use the removeable hump as your template and be sure to predrill your mounting hole and also remove the spot welded nuts that the bolts thread into.