rich, I've had to replace my fan switch itself every 2-3 years. Reminds me of my '92 Chevy van, the rear blower switch burnt out every 2 years also. Just bad GM design. Not enough power rating/heatsinking on the switches.
__________________
69 C10 longbed: 357c.i. /TH400/3.73s/AC/ beige primer/saving $ for paint
______________________________
|