The Ford Barn

anteek · 04-22-2014, 04:08 PM

I have a march of '29 AA front axle assembly, Can I swap the spindles for regular A ones? Will the draglink and steering bar fit? If not, what is the difference in king pin diameter?

Bob C · 04-22-2014, 06:04 PM

In Nov 1928 the AA went to different spindles, bearings and hubs than the A.
The earlier trucks were to be upgraded when they went in for service.

Bob

anteek · 04-22-2014, 06:18 PM

Anyone know the dimensions?

SeaSlugs · 04-22-2014, 11:06 PM

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the kingpin diameter isn't different, the spindle shaft diameter where the bearings ride is different.

kingpin should be the same as a car as is the spindle bushing inner diameter.

id imagine you could swap to all the car stuff but that would require the car spindles, bearings, drum, backing plate (i think? i know the spring perch shock ball is higher on the AA's but not sure what changed brake wise if anything...)

are you wanting to use the axle on a car or use the car wheels on an AA? (i would not do the later)

04-22-2014, 04:08 PM	#1
anteek Senior Member Join Date: Apr 2011 Posts: 319	march '29 AA front axle questions I have a march of '29 AA front axle assembly, Can I swap the spindles for regular A ones? Will the draglink and steering bar fit? If not, what is the difference in king pin diameter?

04-22-2014, 06:04 PM	#2
Bob C Senior Member Join Date: May 2010 Location: So Cal Posts: 8,747	Re: march '29 AA front axle questions In Nov 1928 the AA went to different spindles, bearings and hubs than the A. The earlier trucks were to be upgraded when they went in for service. Bob

04-22-2014, 06:18 PM	#3
anteek Senior Member Join Date: Apr 2011 Posts: 319	Re: march '29 AA front axle questions Anyone know the dimensions?

04-22-2014, 11:06 PM	#4
SeaSlugs Senior Member Join Date: May 2010 Location: Central, IL Posts: 3,968	Re: march '29 AA front axle questions Sponsored Links (Register now to hide all advertisements) the kingpin diameter isn't different, the spindle shaft diameter where the bearings ride is different. kingpin should be the same as a car as is the spindle bushing inner diameter. id imagine you could swap to all the car stuff but that would require the car spindles, bearings, drum, backing plate (i think? i know the spring perch shock ball is higher on the AA's but not sure what changed brake wise if anything...) are you wanting to use the axle on a car or use the car wheels on an AA? (i would not do the later) __________________ 1929 Model AA - Need long splash aprons!