The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 HELP... 1951 3100 fr. Frame rail hole pics.

dsraven · 03-03-2020, 06:46 PM

usually the cross member is marked down the middle at each end and that is the axle center line. you would line that up with the axle center line you want on the frame, then drill as required.

03-03-2020, 06:46 PM	#7
dsraven Registered User Join Date: Nov 2010 Location: calgary alberta Posts: 8,501	Re: HELP... 1951 3100 fr. Frame rail hole pics. usually the cross member is marked down the middle at each end and that is the axle center line. you would line that up with the axle center line you want on the frame, then drill as required.