Saw today a Blue Bird bus built with GM P chassis using front axle with
Saginaw(Delphi) power steering, disc brake spindles and hubs that bolt on to GM two ton front axles, those with metal cover held on with 6 bolts. 10 on 7.25” bolt pattern. Rear axle disc brake Rockwell C-103 on this one, D-80 on others.

So, another source for this useful rare, at least in our part of the country, running gear. Do not know year of Blue Bird.

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.