I am hoping that someone might be able to give me some direction as to what color stripes should be on my front springs. Non air car, power steering, power brakes, 4 speed? I would appreciate any help that you might can give me. I have pictures of cars that have a white and yellowish strip and one that is red and yellowish/gold stripe. My car was built in late March if that matters.
Thank you for your help!
Dan
Dan first a white stripe on the coil spring as we understand it was an indicator of the spring, during testing, was found to be outside of the specified range. Rather than tossing them the maker would mark them with the white stripe so that two "matching" front springs, both with the white stripe on the same car and not cause an imbalance between the driver and passenger side. It was not an identifier. The white was often applied as a spray since it was done in another part of the plant than the identification markings.
The white stamps out since its almost never used as an identifying color for springs during the 60's. Don't have any records from 67 build sheets for it being used.
For cars that that are optioned like yours from around the same production period I've found 1 lavender and 1 yellow stripe on unrestored examples
This would also match other 67 K code applications from the same time period and documented in the build sheets for those cars EDIT - The same springs would be used on a 67 K code Mustang if it had been ordered with the comp suspension a rare option that year
Hope this helps
My unrestored 67, similar details, May build. White and yellow, best I can tell.
For a complete description guess I should have also included that the identification stripes were applied to the coils with an approx 1/2 paint brush. From details from examples they must have been laying flat or upside (big flat end down on a table top) since any excess paint tended to run or at least looks to run up hill once they are installed in the car
Quote from: J_Speegle on October 05, 2021, 05:21:21 PM
Dan first a white stripe on the coil spring as we understand it was an indicator of the spring, during testing, was found to be outside of the specified range. Rather than tossing them the maker would mark them with the white stripe so that two "matching" front springs, both with the white stripe on the same car and not cause an imbalance between the driver and passenger side. It was not an identifier. The white was often applied as a spray since it was done in another part of the plant than the identification markings.
The white stamps out since its almost never used as an identifying color for springs during the 60's. Don't have any records from 67 build sheets for it being used.
For cars that that are optioned like yours from around the same production period I've found 1 lavender and 1 yellow stripe on unrestored examples
This would also match other 67 K code applications from the same time period and documented in the build sheets for those cars
Hope this helps
Jeff ,the 67 Shelby springs were a unique variable rate spring . I am not sure if it was Shelby unique or unique to cars with the relatively rare (other then Shelby ) competition suspension option. Consequently just because the car was a K code would not automatically mean that the springs are the same .
Quote from: Bob Gaines on October 05, 2021, 10:03:13 PM
Jeff ,the 67 Shelby springs were a unique variable rate spring . I am not sure if it was Shelby unique or unique to cars with the relatively rare (other then Shelby ) competition suspension option. Consequently just because the car was a K code would not automatically mean that the springs are the same .
Realize that though should have been more specific.
Variable rate springs either have a different diameter in the first 1/4 section (or so) of the spring or have a much different spacing in that quarter.
Which is it on the Shelby spring?
Just to add more to the database, would a May build at SJ '67 GT-350, non-air, non-thermactor, power steering, auto use the same front springs as a 4-speed?
Thanks,
Greek
It was my understanding that the "Competition Suspension" setup that all '67 Shelby's got was across all the cars - so if that was the case then Yes, GT350/GT500, Auto/4-spd, no AC or with AC the same front spring. (do not think that exact spring is reproduced, maybe that has changed)
OK, others will chime-in.
Added: two images of original springs on a early GT350, engine out and shocks out. Doesn't look like a progressive rate???
Quote from: JD on October 14, 2021, 10:51:32 AM
It was my understanding that the "Competition Suspension" setup that all '67 Shelby's got was across all the cars - so if that was the case then Yes, GT350/GT500, Auto/4-spd, no AC or with AC the same front spring. (do not think that exact spring is reproduced, maybe that has changed)
OK, others will chime-in.
That seems logical. Thanks JD
It might be a little surprising that the same springs would be used for both small block and big block applications given their significant weight difference. Typically springs are sized for options such as engine size, A/C, etc. due to impact on ride height and handling characteristics. Not saying I know this specific case. Just generally speaking.
My A/C car has yellow orange white stripes.
Quote from: 6T6/7 on October 14, 2021, 05:59:01 PM
It might be a little surprising that the same springs would be used for both small block and big block applications given their significant weight difference. Typically springs are sized for options such as engine size, A/C, etc. due to impact on ride height and handling characteristics. Not saying I know this specific case. Just generally speaking.
Front springs are different between models. Add delete sheets identify the different part numbers on the few sheets I just looked at
Examples
Order 84-2528 - GT500 - Front springs to be installed C7ZA-5310-N
Order 84-2571 - GT350 - Front springs to be installed C7ZA-5310-AN
Expanding on Jeff's DSO/SVO information...
It appears there were not only different springs for both the GT350 and the GT500 but...
There were also different front springs for a GT350 with and without A/C and a GT500 with and without A/C
We don't have all of the SVO sets yet but, here's a list from the SVO / DSO documents we do have;
-DSO 84-2571 -C7ZA-5310-AN 200F GT350 Manual
-DSO 84-2572 -C7ZA-5310-Y 201F GT350 Manual with A/C
-DSO 89-2606 -C7ZA-5310-AN 210F GT350 Auto
-DSO 84-2517 -C7ZA-5310-Y 211F GT350 Auto with A/C
-DSO 89-2613 -C7ZA-5310-Y 213F GT350 Auto with A/C and with Thermactor
-DSO 84-2528 -C7ZA-5310-N 400F GT500 Manual
-DSO 84-2530 -C7ZA-5310-N 402F GT500 Manual with Thermactor
-DSO 84-2560 -C7ZA-5310-N 410F GT500 Auto
-DSO 84-2602 -C7ZA-5310-S 413F GT500 Manual with A/C and with Thermactor
We're (SRG) still trying to gather all the SVO sheets sets for every DSO group.
Here's a link to the thread listing what we have so far.
https://www.saacforum.com/index.php?topic=3978.0
Quote from: Richstang on October 15, 2021, 10:43:47 AM
Expanding on Jeff's DSO/SVO information...
It appears there were not only different springs for both the GT350 and the GT500 but...
There were also different front springs for a GT350 with and without A/C and a GT500 with and without A/C
We don't have all of the SVO sets yet but, here's a list from the SVO / DSO documents we do have;
-DSO 84-2571 -C7ZA-5310-AN 200F GT350 Manual
-DSO 84-2572 -C7ZA-5310-Y 201F GT350 Manual with A/C
-DSO 89-2606 -C7ZA-5310-AN 210F GT350 Auto
-DSO 84-2517 -C7ZA-5310-Y 211F GT350 Auto with A/C
-DSO 89-2613 -C7ZA-5310-Y 213F GT350 Auto with A/C and with Thermactor
-DSO 84-2528 -C7ZA-5310-N 400F GT500 Manual
-DSO 84-2530 -C7ZA-5310-N 402F GT500 Manual with Thermactor
-DSO 84-2560 -C7ZA-5310-N 410F GT500 Auto
-DSO 84-2602 -C7ZA-5310-S 413F GT500 Manual with A/C and with Thermactor
We're (SRG) still trying to gather all the SVO sheets sets for every DSO group.
Here's a link to the thread listing what we have so far.
https://www.saacforum.com/index.php?topic=3978.0
Thanks for the update . I had only ever known about the AN and N
......but what are their stripe color id's?
DSO 84-2555 has C7ZA-5310-N. 4-speed Non A/C with Thermactor 402F.
Texas Swede
Quote from: shelbydoug on October 15, 2021, 01:43:11 PM
......but what are their stripe color id's?
Not knowing which group/order the OP car fits into and without knowing if we have copies of those sheets available I guess at this point we're left with the possibility that the car as described used the -C7ZA-5310-AN Springs
From other cars matching the same details I've got one lavender and one yellow. The odd thing is that the same colors have been found on other combinations with different part numbers so there may be more variations in the spring part numbers for other order groups
Good to know.
No response to question in reply #15 yet.
PL
Quote from: lawrence67 on October 19, 2021, 11:30:33 AM
No response to question in reply #15 yet.
PL
The new part number lists suggest that detail needs to be looked at closer for an answer.
It's best to follow the previous suggestions to leave them off and avoid points deductions for incorrect markings.
Quote from: lawrence67 on October 19, 2021, 11:30:33 AM
No response to question in reply #15 yet.
PL
Thought I address that in reply #17 but as mentioned if your worried about showing and are entering Div II or a Concours class the safe bet is to apply nothing if your unsure. No deduction for the lack of markings and you won't lead someone else astray if they choose to copy your car assuming that you knew for sure