Its a five bolt wheel. And you're right the first digits of the serial is a 097. And it does have the Bendix Hydrovac Brakes is that helps

Thanks for the help

I just posted some pictures of the the truck with the axle housing and axles. And also my '38 GMC.

http://s1312.photobucket.com/user/V...mp;_suid=1366822393359042539252475612754