63 W200 NV4500 swap

[Drew63PW420]

I've got the 318, 4 speed -- bone stock as far as I know.
I'm ordering up my NV4500 with the GM 2wd tail housing so I can fit the stock T case (Rockler?).
Planning to use the 360 bell, 10 spline 1 1/8th hub, 11" clutch and fly from the 96 360.
Also getting the starter for the 360, release fork, and somebody said a clutch pedal as well...
Does anybody have this setup?
Am I missing anything?
Any thoughts or cautions?

[PwrWgnDrvr]

U will notice your stock bell includes the mounting of the eng/trans to a riveted in crossmember that also reinforces the frame. U will have mounting issues by changing the bell. U need to confirm compatibility of the later bell, starter and flywheel with the 64 poly. Then there is the clutch linkage.

[Drew63PW420]

Clutch linkage? I'm missing something.Is it not hydraulic?
I don't know what I need a clutch pedal for if I already have a hydraulic clutch; that might have been a red herring...
Maybe I'm missing something.
The NV4500 come with external slave cylinder

I'm thinking I can't go with the NV4500 in with the 2WD tail cone because that assembly with the bolt on yoke is 22"
Seems like the driveshaft betweens the trans and t-case can't be made that short.

If I rebuild my NP435 has anybody found a way to get an overdrive with the divorced transfer case?
I imagine it would be too long and change the angle of the drear driveshaft to the rear end-- too steep
Somebody said put a married transfer case and then remake the shaft to the front, but then I have no parking brake.
And would the linkage work for the NP205?

In the end I want good synchros and an overdrive. We have freeways in California...

[Drew63PW420]

The 62 to 66 poly 318 had a very similar bolt pattern to the later LA engines, with "a one bolt difference" that can be fussed together.
The starter is at 5 o"clock, and I would need a new one from the same bell series to fit the flywheel, as well the clutch neesd to be from 96 and newer 360.
I am told -- not confirmed by dry fitting yet...

[Drew63PW420]

I figured I would make a new crossmember for the new bell, but I didn't an't to get into the T-case crossmember.

Never do in one post that you can do in three eh?

[PwrWgnDrvr]

Ya, I know about CA freeways. Been driving power wagons and swepts here daily since 1978!
You'd be money and time ahead buying a modern truck with all the features u are wanting.
Its a NP 201, not 205 in your truck.
Russ Roth in Portland has a 67 W200, owned since new, installed a 451 stroker and Gear Vendors OD unit.
Is the 96 360 flywheel externally balanced? If so, is that compatible with the poly eng? Does that flywheel bolt up to the poly crank? Does that trans fit the poly pilot bushing?

[PowerMan]

I have a NV4500 behind my LA340 in my 62 W100.

Transmission:
You have two choices:
1. Dodge NV4500 with 1.125" 10 spline input shaft
2. Chevy NV4500 (1996 and newer) (necessary to swap in the Dodge 1.125" 10 spline I put shaft.) I used a 1997 Chevy 2 wheel drive in order to keep the stock NP201 transfer case. Ended up with a 9" center to center driveshaft from trans to tcase.

Bellhousing:
With the Poly, the two lower 7/16" bolts don't line up with the Dodge Gas Nv4500 bellhousing like the LA series engine does. The LA and Magnum engines apparently have the same bolt pattern on the back.

Flywheel:
My 340 is internally balanced so I used a neutral balance from a Magnum 318 (360 Magnum is not neutral balance). The flywheel has the 6 holes with one hole that is out of symmetry with the other 5.

Clutch:
I used a Stage 1 Centerforce clutch for a mid 90's Dodge 2500/3500 series truck with the has 360/318 and the NV4500.

Input shaft bearing:
My 340 is a forged crank I believe and I used the input shaft roller bearing from the Magnum/NV4500. It is pressed into the the back of the crank. The input shaft is about 1" shorter on the NV4500 than on the old NP435 and NP420. I don't know how the input shaft bearing will sit in the Poly 318 crank or if the large hole in the back of the crank is the correct diameter to press in the bearing.

Starter:
Late model gear reduction 2 bolt Mopar brand starter works great. Check the tooth count versus flywheel teeth before the first start.

Master/Slave Cylinder:
The NV4500 master/ slave cylinder is a prebled hydraulic system. I made an adapter plate for the master cylinder to fit on the firewall. It has a square hole in the plate just like the factory does on the Dodge NV4500 trucks. Master cylinder is inserted and turned 90 degrees. Slave cylinder end is no problem.
Let me know if you have any other questions.

[PowerMan]

I have parts:
- 2 Magnum Nv4500 bellhousings
- 1- 2000 Chevy 2 wheel drive Nv4500 Transmission
- 1- Dodge 10 spline 22 tooth Nv4500 input shaft and collar ( to swap in place of the Chevy input shaft)
- 1- Master cylinder/ slave cylinder assembly

I'd be interested in selling. Let me know if you are interested.

The NV4500 transmission shifts very nicely in general. The overdrive is awesome. It is a 27% overdrive. 1st gear is not as low but it is fully synchroed in all forward gears.

[Drew63PW420]

Are you keeping the NP 201 with your NV4500 and it all fits?
Interested

[PowerMan]

I have the stock NP201. An NP205 would be fine as well. I enjoy driving mine. I have a put a few hundred miles on it so far.

[marklein]

How long did your driveshaft end up being? I am surprised there is room for a 4500, fairly long unit. Possibly it fits because the late bell housing is a bit shorter?

[PowerMan]

The chevy 2 wheel drive NV4500 has the shortest overall length and is a fixed yoke. The driveshaft ended up being 9".

[Drew63PW420]

Good question: Is the 360 bell shorter than the poly 318 bell?
and
is your 383 positioned with the rear of the engine in the same place as the stock 318? (relative to the Np201)
Thanks

[Drew63PW420]

I did a bunch of research and I have arrived at a conclusion: Rebuild My NP435. It has a great reputation and I was uninformed--I didn't even know that I was supposed to have a synchro into second! and that's really what I need--a functioning synchro in 2nd gear, and an otherwise intact 1963 Power Wagon.
The complexity of the change over to the modern NV4500 and especially the hacking required on my truck changed my mind.
Keeping it stock!

[PowerMan]

Yes there are some definite modifications. The NP435 is a good transmission especially when there is a synchro in second.

[Drew63PW420]

UPDATE:
powerwagon54 has kindly explained to me that I actually have an NP420, and there is not supposed to be a synchro in second!
This explains why the trans works so well, but is missing that feature.
Glad I signed up for the forum and I'm getting educated!
I will reevaluate my position, and I am told that the swap to the 435 is a slight mod to the cover plate and otherwise a bolt-in.

[PwrWgnDrvr]

Ive put over 200,000 miles on a 62 W300 with the NP 420, all over this area, cruising freeways and towing. No synchro in 2 was ever a problem. Learn how to double clutch if u need to downshift while rolling.
I might have the correct 435 in my stash if u really want to do the swap.

[soopernaut]

UPDATE:
powerwagon54 has kindly explained to me that I actually have an NP420, and there is not supposed to be a synchro in second!

If the truck is stock like you mentioned in the 1st post, then your data plate would take all the guess work out of determining the transmission you have.

[RussRoth]

Russ Roth in Portland has a 67 W200, owned since new, installed a 451 stroker and Gear Vendors OD unit.

True except it is an Advance Adapters OD/gear splitter that pilots in the OEM BB bell. It is headed for deer hunting in Eastern OR very early Thursday morning. I'm not hunting but my brother and his son will be. My brother is pretty good at poking holes in the air but it's always fun to hear since he is also pretty good at emptying the magazine. He has semi auto now so it should be even better! Not as good as myself since the last one I killed a number of years back his son said it sounded like a full auto. Difference is I hit mine with most rounds.

[PwrWgnDrvr]

Hey Russ, do u realize its been 11 yrs since we met up in Portland?