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LesH

B10

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SmilinSam
The decals were different, the newer had a bumble bee on the sides of the cowl, the hood decals on the old were a whitish decal with silver outline while the newer was more silver and blackwith different lettering. The brake setups were slightly different. The grill on the old one was more like a overlapping woven mesh while thje newer was a square hole grid pattern. The grill emblem on the old was a raised diamond, while the newer was a square AC logo. The rear lift on the newer ones had a re-inforcement ring welded where the lift rod goes onto it, the older did not. the safety decals were a little different. The older used a model 23D 9 hp engine while the newer used a model 243431 10 hp engine. There might be more I could have forgotten. Sam

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Kent
Here's some more minor differences, gathered from the 1967 brochures. In addition to the engines, these "late" models have these differences: -- The Bumblebee logo was first used, and quickly identifies these "late" B-10s from the early ones. All B-12s have the bumblebee . . . -- Model ID plates were first used in the grille, in addition to the AC logo plates. -- The engine and drivetrain are now painted black, instead of yellow. -- The backrest on the B-10 is now taller, while the B-12 uses a totally new, different seat. -- B-12 also uses a new black steering wheel, while the B-10 steering wheel remains white. Both have a chrome center cap with the Allis-Chalmers trademark. -- A quicker (5.1 to 1) steering ratio is now used. -- New, heavier front axle and spindles, and wider front wheels with 6:50 x 8 tires on the B-12. -- New, longer choke and throttle levers make it easier to precisely operate these engine controls. [A href='http://www.simpletractors.com/models/b_series/1966_cat/b-10_%26_b-12.htm']http://www.simpletractors.com/models/b_series/1966_cat/b-10_%26_b-12.htm[/a]

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