65silververt

Should the differential half shaft U joint caps that bolt into the yokes be Black Phosphate or Natural cast finish? The judging manual does not specify and i have seen some natural and some black phosphate.

Thanks

Larry N. Johnson

The manual has a lot of details:


Page 156 "Chassis, Rear Suspension" has the driveshaft and half shafts as "...natural finish extruded steel tubes weled to natural steel yokes." the outboard end is ...bolted to the rear spindle flange with black phosphate bolts secured with natural steel French locks."

"Big block cars use a shot peened half-shaft and yoke assembly, identified with a dab of lime green paint on the shaft. Attachment to the differential yokes is via a steel cap secured with hex-headed bolts."

Hope that helps (I plan to do the caps "natural" via casting paint.)

JohnZ

They're natural, and they're forgings.

65silververt

Thanks! I didnt think it made any sense for them to be black phosphate, but i believe i saw some that were black in one of the parts magazines and i suppose that is how it got into my head.