| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | If you find a two speed rear axle, the ratios will be 'slow and slower' which is not very useful. Modern rear axles with the correct wheel bolt pattern and modern 'trans will be useful at modern speeds, depending on your plans.
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.
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