Is there such a thing as rear coil spring clocking for GMT900's?

[mikez71]

Feel like I read somewhere that both pigtails should be facing outward?

But cant remember if it was upppers or lowers or my imagination?

Anyone know anything about this?

I do believe the springs are clocked. Too much coincidence for the tags to line up where the bottom pigtail IS facing outwards when sticker is facing outwards. (and frame rail)
Whether it matters or not, probably not. BUT the pigtail ends are not perfectly flat.
Though they sit on a rubber pad, I still believe they were intended to be clocked.

I just bought some 2016 PPV springs, reckon they'll fit.. The stickers fell off, but I can see where it was. These are 23152539, sticker should have read AAHN.
This is how they would look from above, stickers facing outwards.
Really both upper and lower pigtails are facing outward, but the lower looks easier to clock, plus would be the visible end.

 

[the blur]

What are PPV springs ? My 2013 needs rear springs.

 

[mikez71]

Police Pursuit Vehicle, they are lower than stock and stiffer.
I have not tried them yet, I might throw them in sometime this summer to see hoe they fit and ride.

I've looked at some other gmt900 springs, and they would not clock the same..
(ASSUMING they are clocked at all. I don't actually KNOW.. )

Also do not know if these '15-'18 springs will fit, but aftermarket lowering springs often group '07-'18 together.