| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | Depending on your engine, etc., an NP-4500 will bolt up to most anything, parts are available. Larger (Spicer 5553A) etc. are also available, both good OD trans.' A Brownie aux. trans' is also an option. If you have torque tube, it would be easier to convert to open driveline.
Your '37, you didn't say what size, can handle modern running gear, power steering, power brakes, wheels, while keeping sheet metal original.
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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