Np203 -np205
Thread Starter
|
Senior User
Joined: Jul 2006
Posts: 212
Likes: 0
Np203 -np205
I currently have a NP203 T-case in my truck. I have a complete NP205 in my parts truck, and Im wanting to swap it in. What problems will I have with this? Will i need longer\shorter drivelines? Or would it be a direct swap? I have the Crossmember for the 205 as well, and the 205 is bolted up to a c6 auto which is the same as my 203. My truck is a long bed, and the parts truck is a short bed.
Any help would be greatly appreciated.
-Dallas
EDIT: The truck with the 203 is a '75 F100, and the 205 is a '79 F150. Both have a d44 and Ford 9".
Any help would be greatly appreciated.
-Dallas
EDIT: The truck with the 203 is a '75 F100, and the 205 is a '79 F150. Both have a d44 and Ford 9".
Last edited by Homelessduck; Apr 25, 2007 at 02:06 AM.
Post Fiend
Joined: Mar 2005
Posts: 8,542
Likes: 5
From: Louisiana
IF you have a complete parts truck, then you should be good to do the swap.
You can do it one of two ways: Use the short adapter(6") that came with the 203 and get linkage from a NP205 that has a short adapter(6")(if your parts truck doesn't have it).
Or Change the transmission tail shaft and use the long(9") 205 adapter and linkage.
You will need new driveshaft lengths(might be able to use the front one from the parts truck), but you'll need a longer rear driveshaft.(about 10" longer).
For the first thing I wrote it would make more sense if you knew the length of the adapters between the t case and transmission on both trucks.
All 203s had a adapter alittle shy of 6"(about 5 3/4" or somthing like that)
Most 205s had a adapter about 9" long, with a few the same as the 203= 6"
Also the 79 with have bigger yokes(1330), u joints.
IF you use a driveshaft off the 79 you'll need a conversion u joint to bolt to the axle yoke, or use the yokes off of the parts truck.
You will also need the shifter it's self, and manual locking hubs.
I'm trying to do the same thing, but don't have a parts truck, so I'm running in to a few problems, but here's a link with alittle info on what I've done.
https://www.ford-trucks.com/user_gal...&albumid=17892
You can do it one of two ways: Use the short adapter(6") that came with the 203 and get linkage from a NP205 that has a short adapter(6")(if your parts truck doesn't have it).
Or Change the transmission tail shaft and use the long(9") 205 adapter and linkage.
You will need new driveshaft lengths(might be able to use the front one from the parts truck), but you'll need a longer rear driveshaft.(about 10" longer).
For the first thing I wrote it would make more sense if you knew the length of the adapters between the t case and transmission on both trucks.
All 203s had a adapter alittle shy of 6"(about 5 3/4" or somthing like that)
Most 205s had a adapter about 9" long, with a few the same as the 203= 6"
Also the 79 with have bigger yokes(1330), u joints.
IF you use a driveshaft off the 79 you'll need a conversion u joint to bolt to the axle yoke, or use the yokes off of the parts truck.
You will also need the shifter it's self, and manual locking hubs.
I'm trying to do the same thing, but don't have a parts truck, so I'm running in to a few problems, but here's a link with alittle info on what I've done.
https://www.ford-trucks.com/user_gal...&albumid=17892
Last edited by MBBFord; Apr 25, 2007 at 12:32 PM.
