[63gmc305e]

so no-one on here has the eaton rear end that has the easily swapped third member? I swapped my one ton dump 5:? for 3:73 and gained 8 MPG and it cost me $50 for the third member that the wrecking yard had laying in the mud. The switch took 20 minutes, The same third member fits my 63 GMC 3/4 ton, 64 GMC 3/4 ton, my 64 Chevy 3/4 ton Factory fleetside dump, my 68 1 ton dump, and my 72 3/4 ton chevy catering truck. I leave it in my 68 1 ton chevy dump that also has a three speed brownie behind the 4 speed muncie, so I have few limits to the range and the whole set-up cost $200.