[aggiegrad]

Thanks for the information on the leaf springs. There is no SPID tag in the glovebox. I do have the original owners manual as well as the owner protection plan with the engraving plates for the original delivery with the original owners name. The Vin # on that steel plate (attached to the protection plan manual) matches. here is what was on the stamping plate:

307 0000 CE10D-PB45093
RXSTD 3.54 1D156018
TRAT400 GMC2



it was originally in Idaho.

Not set up to attach photos yet. Will need to look into that more.

thanks