NP435 vs. T19

Hi guys,

The time is drawing near to convert the new 87 F350 CC to 4wd. I really like the T19 4 speed that's in it, but I wouldn't be mad at a 435/205 combination either. My first thought was to pop a divorced 205 in behind the T19. Then, I'd have no juice clutch drama trying to bolt up the 435. But, now I'm not sure what's the best idea. So I'm asking you guys what you think. Buy a 435/205 married combo, and try to source clutch linkage, etc.? Or, make a crossmember for a divorced 205 and not worry about it? One other issue with the 435 option: will the T19 bellhousing bolt onto the trans? Will teh input shaft depth be OK from a 400M bell to the external balance 460 in the 87?

It's quickly occurring to me that this might not be such a hot idea.....other than I hate 2wd trucks. Maybe I should justt peddle the truck and find a more appropriately equipped model!

Thanks,
Pete

Lots of 80up t18/19 with 208's or zf5's with 1345/1356's behind them. Unless you REALLY NEED the 205 the other options simplify it quite a bit for your particular truck.

Without a donor truck swapping the F250's and the F350's to 4wd is kind of a PITA because of the springs and shackles. THe F150's are much easier.

Brent,

I've got my old 86 F250 4x4 plow truck as a donor. Looks like I'll need to take the "shackle pocket" deal out of the frame of the 250, and adapt that into the F350 frame. I hope the rear brackets for the front leaf springs will just bolt onto the F350 frame. The other option I thought about was the shackle reverse conversion from ORU. Other than the simple looking parts costing $500, that looks like a good way to start the swap off, too. Have you done this swap? I keep thinking it'll be sort of easy, but I haven't had a lot of luck lately with these "easy" projects.......

Thanks for the info on the T19/208 option. I like 205's, but I'd rather use factory stuff if possible. Love my granny-low iron 4 speed, but I sure could use an overdrive ZF!! Maybe that's my best bet.....source a ZF/1356. And that funky long rear driveshaft!!

Galaxie427 wrote:Brent,

I've got my old 86 F250 4x4 plow truck as a donor. Looks like I'll need to take the "shackle pocket" deal out of the frame of the 250, and adapt that into the F350 frame. I hope the rear brackets for the front leaf springs will just bolt onto the F350 frame. The other option I thought about was the shackle reverse conversion from ORU. Other than the simple looking parts costing $500, that looks like a good way to start the swap off, too. Have you done this swap? I keep thinking it'll be sort of easy, but I haven't had a lot of luck lately with these "easy" projects.......

Thanks for the info on the T19/208 option. I like 205's, but I'd rather use factory stuff if possible. Love my granny-low iron 4 speed, but I sure could use an overdrive ZF!! Maybe that's my best bet.....source a ZF/1356. And that funky long rear driveshaft!!

Yeah i never bothered with that swap once i saw the frame differences. I think the rear shackle should be a straight forward deal. The shackle reversal i think would take a lot of chop out of the ride but you're still dealing with some pretty stiff suspension anyway. Are you using the TTB setup or a D60?
You may have trouble finding a Dshaft for that setup, but I'd def look around as Dshafts can get expensive if you have to do a custom deal, or rebuild an old one. I lost the rear half of mine on an ex cab long box a few years back. by the time all was said and done it was $600 (canadian) the midshaft was worn out, so...that, the complete back half and balancing sure added up.

I've got a 1991 king pin D60 for the swap. I thought about welding the wedges onto it and running a radius arm setup from a 78-79 half ton. From the truck side of things, that would be an easy deal. It'd be a shame to wreck the D60 from ever having leaf springs on it, though. Plus, I had to buy the one spring plate (discontinued from Ford, mind you) that cost $105. On the other hand, that modified 60 would work for all the half ton guys if I ever went back to a Bronco.......

Dang. Decisions!!!!

THe TTB springs will make it ride like a lumber wagon
Real monobeam springs would be much better.
Another idea i did see and it seemed to work and look good was swapping a newer superduty w/coils in. looked good. The super duty coils plates were a bit wider than the coil buckets on the truck (was a 92-96 F150 iirc) but the guy said it rode real nice. I'm pretty sure he swapped front and rear, but you'd end up with a different bolt pattern front and back. He had to do some fab work with steering and panhard bar and stuff like that iirc....