everything except the core support from 56 Chev will mount on the 58 GMC frame, but here's a 55-57 front clip on a 58 frame, chalk mark is how much needs to be removed to mount the bumper properly [after re-drilling holes] because of the extra length 3B mentions - the core support can probably be rigged is you have the Chev frame to rob the mounts from

Bill


Moved over to the Passing Lane

"When we tug a single thing in nature, we find it attached to the rest of the world" ~ John Muir
"When we tug a single thing on an old truck, we find it falls off" ~ me
Some TF series details & TF heater pics