 Early Mustang spindle I.D.
Starting off I am seeking factual information, not the "Everyone knows that..." type.
Two questions in regards to the front spindles used on the early Mustang V-8's:
#1 Back in the dark ages I helped a neighbor part out a genuine 64 1/2 Mustang V-8. I say "genuine" because the car had all the hallmarks of the early production vehicles (i.e. The front corners of the hood were treated differently then the 65 up models, etc.). I did not see the engine from the car but there were V-8 motor mounts (which I obtained), 260 emblems on the front fenders, and an 8" rear axle.
The front spindles carry a casting/engineering number of "C4ZA" (64 Mustang) and the physical spindle is the same shape/size of the V-8 Falcon spindle. All parts directly interchange.
However, the Mustang has a longer steering arm, and the hole for the tie rod end is of small taper, NOT the size we commonly associate with the V-8 Mustcan/Falcon/Comet.
My question is, was it typical for the EARLY 64 1/2 Mustang V-8 to have the small tie rod end or is this car a production line freak?
#2: "Everyone knows" that the 64 Shelby 350 GT had the upper control arms relocated from stock Mustang position. Some of us also know that the GT 350 had a unique steering box ("K" if I remember correctly) with a fast steering ratio, steering/pittman arm and idler arm that were a different length then the production Mustang V-8, and if memory is correct, the steering arms on the spindles were shorter (?) then the production V-8 Mustang.
My question is, does anyone remember the casting/engineering number of the early GT 350 spindles?
From the parts I have on hand I'm thinking the GT 350 may have used V-8 Falcon spindles (C3DA casting number) and not Mustang. | 
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