| Crusing in the Passing Lane Joined: Jun 2011 Posts: 5,096 | D-70 and 80 disc brake rear axles come with the GM 5/10 on 7.25” bolt pattern. ‘91 - ‘01 P3500/P30 disc brake front hubs/spindles with 5/10 bolt pattern can be adapted to older axles.
Ed
Last edited by EdPruss; 02/23/2023 3:25 AM.
'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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