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| | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Has anyone done this swap, must separate rear at belt line, take apart at windshield "A" post and relead joint, biggest problem fitting '54 windshield to earlier cab, do you think it is worth it? Of course it would be cool if donor was '54.
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Mar 2004 Posts: 256 'Bolter | | 'Bolter Joined: Mar 2004 Posts: 256 | Ed, I've done the swap but an early 5 window roof to an early 3 window cab. It was fairly straight forward/not too difficult. But what you are proposing, as you're probably aware, means that the curvature of the 1 piece 54 windshield, at the top, would need to accommodate the forward edge of an earlier roof which was designed to use 2 pieces of flat glass. IMHO, I really think you're asking for trouble....there's little chance that you'll be able to seal the top of the 54 windshield to the earlier cab, and also it would look like c.... Not worth it. I'd keep looking for that 54 donor, or stick with the 3 window cab.
Good luck...Dave | | | | | Joined: Jun 2011 Posts: 5,096 Crusing in the Passing Lane | | Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | How does the cab attach at the belt line, I don't feel any bolts or weld in there at the corners where I can feel with my hands?
Thanks,
Ed
'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
| | | | | Joined: Sep 2008 Posts: 57 'Bolter | | 'Bolter Joined: Sep 2008 Posts: 57 | Ed,
There are spot welds across the whole belt line. Not sure the purpose of the 4 bolts across the back, once those come out you will still have to deal with the spot welds. When I removed my lower back panel, there was probably 60 spot welds across the belt line. I don't have my assembly manual handy, but I think there is a page showing the spot welds.
Dave
1966 Chevrolet Caprice 2 Door Hardtop (396 Big Block)
1951 GMC 9434 5 Window (waiting on a 292 transplant)
| | | | | Joined: Dec 2002 Posts: 2,549 'Bolter | | 'Bolter Joined: Dec 2002 Posts: 2,549 | There's a difference at the lower edge of the windshield, & cowl vent also. | | |
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