['ol Pinion head]

What you have with the Motor Wheel produced 14x6 Rally II, with an 11/5/70 date code, is a error where the K character was misstamped as well as the T was left in the die. There are other examples where MotorWheel employees screwed up on codes. This makes total sense as MotorWheel Rally II production was shutdown from fairly early Sept of 1970, til early Nov of 1970 due to the UAW strike on GM.

By historical study, this dated 14x6 Rally II wheel should be one of the very first KU coded Rally II wheels. Have personally had in my hands a KU that was dated 11/6/70. That is still the earliest KU coded 14x6 Rally II I ever examined & I began noting their use while compiling the GT-37 Survey in the mid 80's. That also corresponds with when I first began pulling JT & KU coded 14x6's, as well as JA & JL's in boneyards. Not only did mid to late '71 production Pontiac A-body's use the KU, but they were also installed on Pontiac Venturas up into the '72 model year.

Normal production stamping of KT coded 14x6 Rally II's began for the '72 model year & continued through the '72 model year. Nearly all of the nice KT coded wheel cores I've had either came in on '72 LeMans partscars in the 90's, or were bought really cheap through wholesalers in the 90's & early 00's.. At one time I had a source make replica JW/KR 15x7's, & the medium depth center notched KT coded 14x6's made great donors for their 14" centers.