[Alvin]

Originally Posted by Alvin

Note your build sheet screen grab below.

On topic, of interest (to me) are the designations as written there:

• FJ4 Tire G60x15 L

• FQ5 (or FO5?) Chrome Wheels

My copy - and supplemental page - of the GTOAA's Pontiac GTO/GT-37 Illustrate ID Guide does not include the desgination(s)

• FJ4 as Tire description.

• FQ5 (or FO5?) Chrome Wheels

Instead for 1973 GTO it includes

Standard Tire: TXF P86

• G60 x 15" black wall

2 polyester body plys
2 fiberglass tread belts
Load range B

Optional Tire:TXL PJ4

• G60 x 15" raised white letter

2 polyester body plys
2 fiberglass tread belts
Load range B

––-------------------------------------------------

Standard Wheel: Stamped steel
Size - 15" x 7" (AE)
Wheel color -

• Starlight black

Standard hub cap: (illustration of chrome moon poverty cap w Pontiac arrow)

Optional Wheel: Rally II; styled steel 474 N98
Size - 15" x 7" (KR, HM)
Wheel color -

• Argent Silver/Medium Charcoal

Mandatory accessories -

• Trim ring

• Center cap

Optional Wheel: Honeycomb; molded Neothane/stamped steel 478 PO5
Size - 15" x 7" (KP)
Wheel color -

• Argent Silver

Mandatory accessories -

• Center cap

Optional trim ring: 471 PO6
(n.a. w/Honeycomb)

Ran out of time while posting the above and left out the designations shown above in RED as - Sales code no. | UPC code no.

Also found this interesting tidbit:

Dealer-installed accessories:
Part
no. Description (application)

984528 Wire Wheel Disc Covers (4)