I was just looking at 440Source for the distributor driveshaft and found something Disturbing. They are selling in Their own words "Heavy Duty pinned Intermediate shaft - Steel gear (needs slight grinding of hex flats to fit pump) $25" "Needs Slight Grinding of the Hex Flats to fit the Pump" That doesn't sound right to me !!! Wouldn't the shaft be case hardened and would not grinding ruin the hardening ???