I've been meaning to get out and actually measure the frame rail spacing, and center to center cab and bed mount spacing for the 1989 shorty Ranger frame I have out front. I'll post that info here once I get the pics or whatever
The usefulness of it is in knowing how far apart things have to be to swap different cabs around - sometimes cabs you wouldn't believe... to chassis that are just plain better in some way
* somewhere on here I remember reading that somebody had dropped a 40 or 50 F100 cab on a Courier chassis
Most cabs will have three pairs of mount bolts,
2 at the front near the radiator support
2 in the cab floor by the firewall
2 behind the seats at the cab floor rear
*Crew Cabs, Bronco's, Excursions - etc... will be unique
Beds may have as few as 6, but usually have 8,
equally spaced from front to back
**ON 1/4 Ton Ranger Frames, the firewall cab mount is LOWER than the rest of the mounts
For a normal truck though, I would short-hand label the bolts/mounts as:
CLF (cab left front)
CLC (cab left center)
CRR (cab right rear)
BL-1 (bed, left, ONE)
~ and so on, because we number stuff from front to back, right?
Could be 3 pairs, could be 4
BL3, BL4, maybe even BL5 for a long enough bed...
It is fairly obvious that all of this is a school What bothers me is what am I expected to learn from it?
Why am I here... What is my purpose...
I don't know if I am passing or failing
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