thanks!
as for the abs light...now its coming back on sometimes and the overdrive on / off flashes sometimes and sometimes it doesn't. a solenoid went out in my '03 psd tranny which was luckily simple enough with 90,000 on it.
actually, the airbag warning light has came on recently, too. im gonna start tracing the grounds to and from the abs unit, too. it came on this morning on the way to work along with the overdrive on / off light. it was raining out but dont know if it was a coincidence or not. on the way home everything was fine.
seems to be pretty common in these trucks from the research im doing and i guess im the lucky one who buys the used ones w/the problems. only one i didn't have warning light problems with was my '99.