67-72 4x4 NV4500 spacing questions

[Campbel45]

Hey guys,

Those of you who have swapped in the NV4500 into your 4x4, what difficulties did you have in spacing everything? Mainly engine position and transmission crossmember?

My setup is a 71' SWB, 4x4, lifted 4", with bench seat, using an NV4500/NP205 in its shortest configuration - 32 spline round pattern NP205 mated to the NV4500 without any spacers. I also have an advance adapters bellhousing to use mechanical clutch.

As of right now the rear 4x4 engine position works but its tight. The HEI clears but I'm worried about the cabs opening for the clutch rod getting so close to the valve covers (I have tall valve covers too ). Both shifters seem to clear just fine without touching the seat.



For those of you who have moved the engine forward, did you have to drill out new holes? It seems like I could either move it forward about 2 inches or 4 inches based on the factory holes.




Also it looks like I need to lower the transmission crossmember as the cabs floor is contacting the transfer case. I've seen other members use 2x2" or 2.5x2.5" spacer to lower the crossmember. In doing that, did you adjust your pinion angle? Without adding the spacers, my driveline angle is 2-4 degrees (angle found at transmission yoke).


Please let me know you experiences. Thanks for the help!