got my front pads changed today and the abs light stays off now but i still got that buzzing in the pedal when i brake so yea gotta figure out whats wrong

 

Check for codes even if the CEL isn't on. Pads I don't think will cause an ABS light, though they may cause it to activate. To have the ABS light on there will have to be an issue with the sensor in the bearing assembly or wiring, maybe the ABS module under the hood.
There was a posting about ABS under 5mph or something, search around for it, it may help.

 

No catalytic converters on K5's in '74! They didn't even pull a wheel today. Just looked at the front pads through the rim.

 

lol, I love old trucks!

 

Both my ABS & Check Engine light was on upon purchase. Both systems operating normal. I removed both bulbs. Tired of looking at them. I know some will frown upon this but a person can spend $100s trying to get the Check Engine light to go off & still not have any satisfaction. Supposedly with the ABS it's with the wheel sensors. Big deal, I can live without ABS.

 

Hey, at least it's only $10. It's $16 here in Va., but I've been in & out in 10 minutes as well.

 

Wow wish it was only 10 to 16 buck for an inspection here in MA. I paid 30 bucks an it was a 10 min job.

 

tested my brakes today and no abs light any more yay me

 

glad we dont have that crap here, yearly licence fees are bad enough. let alone a outsider having issues with a check engine light being on or a gutted converter. almost once a week i have to reset the orange light due to a evaporative emmisions issue. havent cured it yet, about to just take apart the dash and tape over the light.

 

Got my plugs, wires, cap and rotar changed. PITA PITA and bigger PITA lol. All AC Delco, runs smoother now. Also got my oil pan skid plate and my transfer case plate on.