Before I put this on Ebay, I thought I'd post this here. I bought the Helm
set for my 1990 k1500.
Set consists of
C/K pickup service manual ST 375-90
1990 Dealer Service manual Update supplement ST-502-90sb
C/K pickup electrical diagnosis and wiring diagrams st 375-90edd
and Light Duty Trucks unit repair manual.
The unit repair part is a photocopied complete manual but the rest are
original. This is the way it comes from Helm.
I paid over $100 and it is virtually brand new. No grease or markings. Need
to sell. $85 shipped .
Please email me privately if interested email@example.com.