| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | I have a '47 first series GMC I have converted to 4wd. Full size 10 bolt Blazer front axle, 241 transfer case, NP-540 series 5 speed trans, 14 bolt SF rear axle, 6 lug wheels both ends. Full width front fenders-no tire stick out, GMC 302 engine. Scout power steering box.
The hardest part is adapting front axle parallel spring axle to tapered plan view original front springs, as well as 5 speed to transfer case.
Ed
Last edited by EdPruss; 03/23/2018 2:46 PM.
'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.
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