Chevy P30 Chassis 1973 brake rotor clearance.
I had to replace the front rotor on my '73 P30 Sportscoach RV. The local NAPA had no listing for '73 dual rear wheel P30, but they did have one for the '75 and the rotor matched all dimensions, excep...
Forum Discussion
SuperDutyFiver wrote:
Was there a lot more meat on the disc than your old rotor or is the gap between the two surface greater?
I'm amazed that the dust shiedl hasn't rusted away and that you could even get the bolts off!
Yes, there's lots more meat. The previous one had been reground enough that this time it just wouldn't take another regrinding. I'd (stupidly) used brake pads that have rivets instead of the newer ones with the adhesive pad attachment, and one side wore out much faster than the other. The rivets cut those awful grooves.
Still.... the new rotor should have had clearance unless they are building the rotors with much greater thickness than in '73.
I do vaguely recall that I may had to replace the other side 10 years ago and had to remove the lock washers from the shield bolts to get more clearance until the pad had worn down a bit. On this side, however, I've had to remove those washers and grind down the bolt head. I like having more beef in the rotor thickness, but I sort of wondered if anyone else had ever seen this issue.
The shield was still in great shape - and the bolts came off with little or no effort. The DW was standing there and commented "Those bolts will never come off." She was amazed they came off so easily.
