T18 Swap for NP435

Reply Subscribe

Thread Tools

Search this Thread

Jul 22, 2002 | 09:12 AM

ford351c

Thread Starter

Mountain Pass

Joined: Jun 1999

Posts: 102

Likes: 0

From: Pennsylvania

T18 Swap for NP435

I am thinking of swapping a T18 for a NP435.
Will they line up?
Are shafts the same length?
Any other things I might run into before i decide
to do it or not.

Thanks in advance

Jul 22, 2002 | 09:45 AM

ringkong

Senior User

Joined: Feb 2001

Posts: 150

Likes: 0

T18 Swap for NP435

I don't know if it would be worth the trouble.

the T18 is a pretty stout tranny, I know I would not get rid of mine for anything.

Jul 22, 2002 | 12:07 PM

psychoXXX

Freshman User

Joined: Jun 2002

Posts: 25

Likes: 0

From: Salmon Arm Canada

T18 Swap for NP435

Man that T-18 can take anything and never dies why would you wanna get rid of it???

Jul 22, 2002 | 12:50 PM

82F100SWB

Post Fiend

Joined: Jan 2000

Posts: 5,330

Likes: 17

From: Dryden, ON, Canada

T18 Swap for NP435

The 435 does have a lower granny, but, it's only a marginal difference. As for putting it in, the case is a couple inches shorter.
Evan
1982 F100 SWB
300 HD: Cliffy 290H, 9.1:1 compression, forged everything, ARP'd bottom end/Hedman hedder/dual 2½" exhaust
NP 435/2.75 geared 9"
78 F150, 351M/C6, soon to be repowered with a 460
7? F?50 4x4, 250 badges, 150 running gear, 300/NP235/Married 205, D44/9"

Jul 23, 2002 | 03:47 PM

ford351c

Thread Starter

Mountain Pass

Joined: Jun 1999

Posts: 102

Likes: 0

From: Pennsylvania

T18 Swap for NP435

I misquoted myself. My NP435 has 2 broken
internal gears and a cracked top cover. I can get
a T-18 for less $$ than repairing the NP435. Thats the only
reason I'm considering the swap. But if they dont line
up or shaft problems then thats a different story. Just looking
for info if its worth fixing the NP or dropping in the T-18.

Thanks

Jul 25, 2002 | 09:53 AM

jalampi

Senior User

Joined: Feb 2002

Posts: 499

Likes: 0

From: Michigan

T18 Swap for NP435

I had a T18 in my 79 while I was waiting for parts for my NP435. The T18 will bolt in but you will need the transfer case adapter. The transfer case is the same. I am asuming your truck is a 4x4.

1979 F350,4x4,NP435,5:13 gears,Detroit locker in rear with hardened shafts,ABR in the front,360 with 428 crank & rods,390 HP heads,Centerforce Dual Friction Clutch,MSD Ignition,39.5x18 Boggers,bucket seats out of a Lightning,& a Southern Body that is perfect.

1997 F350 PowerStroke 4X4,36 Inch Super Swampers, Strait Piped, Chiped, Propane Injected, LUK Clutch

Jul 25, 2002 | 09:57 AM

jalampi

Senior User

Joined: Feb 2002

Posts: 499

Likes: 0

From: Michigan

T18 Swap for NP435

If you are in Michigan I would be interested in your NP435 main shaft, if its a 4x4 trans.

1979 F350,4x4,NP435,5:13 gears,Detroit locker in rear with hardened shafts,ABR in the front,360 with 428 crank & rods,390 HP heads,Centerforce Dual Friction Clutch,MSD Ignition,39.5x18 Boggers,bucket seats out of a Lightning,& a Southern Body that is perfect.

1997 F350 PowerStroke 4X4,36 Inch Super Swampers, Strait Piped, Chiped, Propane Injected, LUK Clutch