| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | One can get a D-80 with factory disc brakes from a c and c truck that might be the right width using singles with 10 on 7.25” bolt pattern for the rear axle.
Front axle from GM 2 ton truck-bolted on small hub cap vs smaller screw in small hub cap can use later front disc brake spindles and hubs with 5 on 7.25” bolt pattern without having to narrow axle. Read up on it in Grigg’s notes. If your truck does not have 2 ton front axle, one can be gotten from suitable 2 ton truck.
Springs and steering will likely need to be upgraded to match new load carrying capacity.
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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