Hi woodscra,

Ignore my mounting. I did this to move the engine back thinking that the plane was going to be nose heavy. Funny, huh? This was in the early days of the DP Extra before people found out how tail heavy they were. The extra long hub is custom made to make up for taking the mount off. It will not be required when using the stock radial mount. I think the hub is 3/4" longer than stock.

You will want to use the stock mount and hub with yours and there will be very little adjustment necessary to get the proper clearance between the cowl and spinner.

Bill