SPINDLES

[johnzajc@gmail.com]

hi--I have DOAZ 3108 Spindles on 69 HD suspension June production Shelby gt 500---are this correct or do I need C9AZ Casting number--thank you for clarification

[TOBKOB]

I believe that is the correct spindles that followed the KXX spindles. The KXX spindles were used for a short time until they started production on the new spindles.

TOB

[Bob Gaines]

I believe that is the correct spindles that followed the KXX spindles. The KXX spindles were used for a short time until they started production on the new spindles.

TOB

The KKX marked spindle machined for the Boss 302/Shelby and not the Boss 429 was used first for a very short time as has been mentioned (3/69 4/69 ?) . The OP listed D0AZ 3108  spindle would only be correct on a 6/69 Shelby if it had the all important "B" suffix. That D0AZ 3108- B spindle is the same as Boss 302 . It also takes a special Boss/Shelby Rotor. A common 70 regular Mustang rotor will not work on a Shelby/Boss spindle.That is the reason why many were changed out. The big suspension big bearing spindles were commonly changed out with the regular 70 Mustang/Torino D0AZ 3108 C spindles because the 70 Mustang rotors were common and the tie rod ends were the same larger diameter so the 70 regular Mustang/Torino D0AZ 3108 C spindle easily could be substituted. This typically happened the first time a Big suspension Shelby needed a rotor. The C9 spindle would only work if you changed from the larger tie rod ends to the smaller tie rod ends.You would also use the smaller bearing 68/69 rotor with the C9 spindle.  The Boss spindles are very hard to find. This is all from my time at the Ed Meyer school of "Big Suspension" 

[TOBKOB]

The KKK marked spindle machined for the Boss 302/Shelby and not the Boss 429 was used first for a very short time as has been mentioned (3/69 4/69 ?)

LOL Bob, I don't know what is going on this AM but both of us are having trouble spelling KKX...LOL...

TOB

[johnzajc@gmail.com]

Thank you so much, all that information is beyond being helpful, it is beyond the words to express how valuable it is---THANKS AGAIN

[johnzajc@gmail.com]

Hi ---on other car early June production I have both DOZA 3108    ----B--- AND KKX on passenger side, to be correct I assume we need to change later to 3107 or would it be wise th change them both to  C suffix if I can find them---thanks

[TOBKOB]

Don't get in too big of a hurry to change them as I have read of some cars having one of each. I'm sure someone with more knowledge will chime in.

TOB

[Special Ed]

No doaz spindle on mustangs doza mustang and yes have seen some cars with  B9  kkx (with the wire wrap)shortened on 1 side and doza -b on other side.

[johnzajc@gmail.com]

thank you---essentially , if it is not broken do not fix it