By cheap way are you talking about mounting a manual behind a 360, buying aan adpater plate and mod. drive shaft. Or just getting all the parts like flywheel and such or both. If I decidded to this it would be long term and depending on my luck get everything cheap form junkyard. Plus it might be fun to have a 5 speed manual in a 70 f-100.

 

have you looked for a 5spd OD for your truck ? if you did want to go through the process then i would look for a NV4500 tranny out of a 94 & up dodge truck & 92 & up chevy truck , stay away from a getrag tranny from earlier dodges as they are not that dependable !

 

I've been looking for for an nv3500/4500 for my other truck. The 3 speed saginaw is wearing out. Just though when I go to the junk yard I could look for a tranny for my f-1oo. Do you know if the nv 4500 is direct bolt or do I need an adpator plate.

 

no as they were never put in any ford truck ! just chevy and dodge !
stay away from the NV3500 as it is a weak tranny that wont last long , had 2 many problems not holding up !

 

I know this thread is old, but for anyone searching the info..........I swapped from a C6 to a T19, behind a 351W.

The gain was only 1.5 mpg (running empty, 55 mph); but there was a noticeable power gain; also a 3" increase in vacuum, climbing same hills/same speed.

I'm sure there is a bigger mpg gain with the manual trans towing (or loaded). But I didn't have mpg #'s for the C6 when towing, to compare.