[Don_Lightfoot]

Certainly a bit of mystery still here, although I very much appreciate your response Greg. Your point about interchangeability is well taken. You are also right about being only the fronts for Camaros. I certainly can't speak for the accuracy of the spring charts I have, but here is what they are telling me.

<span style="text-decoration: underline">Camaro Front:</span>
3955709 - ED &amp; EK.
3955712 - EL, EM &amp; EQ.
3955725 - HA, HB &amp; HG.
3855727 - HH &amp; HJ.
3955722 - YA, YC, YH, YM &amp; YP.

<span style="text-decoration: underline">Chevelle Front:</span>
3952824 - AC &amp; AD.
3952808 - AH &amp; AI.
3952811 - AJ &amp; AO.
3952818 - GV, GW &amp; GX.

<span style="text-decoration: underline">Chevelle Rear:</span>
3952831 - BF &amp; BI.
3952828 - BE, BL, BM &amp; BU.