The Ford Barn

Rocktrend · 04-28-2021, 08:08 AM

Ok guys. I am finally to the point where I need expert advice and or diagrams. I am doing a frame off resto on a 39 big truck. I have the body off, engine and trans pulled as a unit, and frame completely stripped. I am having trouble understanding how the hell I get the driveshaft out in order to replace the middle ujoint. I have a feeling the entire third member has to be pulled back and out of the truck. That's fine if that's what needs to be done, I am just not believing ford would have set it up this way. It would make a huge job out of replacing that center joint. Which is trashed right now. Leading me to believe that's the reason it wasn't changed. I ordered a few books from gaslight but the guy said it doesn't really cover the big truck and that I may be "opening a can of worms". Along with my other questions where do I find resources for the big truck drivetrain/suspension? Another thing is how does the rear leaf shackle remove from the frame mount? It looks like a set bolt needs to be removed allowing a giant regular screwdriver tip to uncork the shackle pin? Please help me here guys nobody in my tiny little town knows about this truck. I would really like to keep the rear axle original but if I am indeed opening up cans of worms I may just swap it for the 1996 f super duty rear end instead. Another thing how do I remove the front leaf pack? Thanks for any input. My project has been standstill for days and Im waiting on books from gaslight that may not even help me.

04-28-2021, 08:08 AM	#1
Rocktrend Junior Member Join Date: Apr 2021 Posts: 5	39 big truck driveshaft removal Ok guys. I am finally to the point where I need expert advice and or diagrams. I am doing a frame off resto on a 39 big truck. I have the body off, engine and trans pulled as a unit, and frame completely stripped. I am having trouble understanding how the hell I get the driveshaft out in order to replace the middle ujoint. I have a feeling the entire third member has to be pulled back and out of the truck. That's fine if that's what needs to be done, I am just not believing ford would have set it up this way. It would make a huge job out of replacing that center joint. Which is trashed right now. Leading me to believe that's the reason it wasn't changed. I ordered a few books from gaslight but the guy said it doesn't really cover the big truck and that I may be "opening a can of worms". Along with my other questions where do I find resources for the big truck drivetrain/suspension? Another thing is how does the rear leaf shackle remove from the frame mount? It looks like a set bolt needs to be removed allowing a giant regular screwdriver tip to uncork the shackle pin? Please help me here guys nobody in my tiny little town knows about this truck. I would really like to keep the rear axle original but if I am indeed opening up cans of worms I may just swap it for the 1996 f super duty rear end instead. Another thing how do I remove the front leaf pack? Thanks for any input. My project has been standstill for days and Im waiting on books from gaslight that may not even help me.