the tags clipped to the rear seat frames , can they be decoded ? the lower rear seat reads : 3520616 A LSI M 13685 3160 . the upper seat reads: 2942638 B LSI- M - 13685 0551

lower rear seat:
3520616 = part #
A LSI M
13685 = vendor code
3160 = date = Thursday 11/12/70

upper rear seat:
2942638 = part #
B LSI M
13685 = vendor code
0551 = date = Wednesday 2/24/71

What's your '71 Challenger's SPD?

the door tag shows 10 -70 im not 100% sure on the seat #'s cause I am to old to see them ! Thanks for responding . are there tags on the front seats as well? have not checked them yet.

Yes, there are tags on the front seats. After 40+ years and all your (or anyone else's) car has been thru, who knows if they are originals.

that's for certain ..at least they are from 71 or they seem to be!

Here's a tag from (I believe) a '70 Charger bucket passenger side top half. I believe the tag is actually for the frame part itself.



3447456 X
CADIZ 2 16 70

Here's a tag from a '70 Charger (white vinyl) bucket driver's side bottom half.



3447484 F 0
CADIZ 6-1 70