NV4500 (?)

NV4500...

part number for the bearing at the dealer is 53009180AB.

FYI, a Magnum 360 and LA360 are balanced differently---which means the flywheels are different (also the front balancer too). There may be an aftermarket flywheel that'll have different holes tapped for different size pressure plates/clutch setups. Might be one available for the LA 360 so you can use a 4500 trans clutch on it.

A nv3500 trans might be a little easier to use, but pretty sure you need to convert to a hydraulic setup on the clutch--I don't think it is that big of a deal if you can do some fab work yourself a little bit.

I have a 833OD in my truck. If you are not abusive, they will do just fine. They are strong---not as strong as a regular 833 in an iron case--but still strong enough to hold to a big block. I put 3.55 in it, first gear is pretty steep. Not sure 100% if I like those, I need to drive it more before I decide to go up or down on the gearing with my tire size (29-30" tall).

I am not sure what the clutch size (thus the pressure plate size and bolt pattern are) that are compatiable with the NV4500. It is possible the pressure plate will work on your flywheel (assuming you have the correct one for your engine), But I do not know for sure---just wanted to give you a heads up on that. Do not just assume this will all go together.

Plus 360 flywheels (old LA style) came in two flavors, 130 tooth for 10.5" clutch setups and 143 tooth for 11" clutch setups. You need the correct bellhousings to go with the flywheels because the bellhousing positions the starter in the correct spot.

Also, I believe in your other post you talked about a '73 340 which is external balanced also and require it's own flywheel and balancer which are not the same as 360 magnum or LA series--it was kinda an oddball by itself. 273/318/ '68-72 340 are internal balanced and can use a flywheel from either engine.

Not sure if you can use a production driveshaft of either one or two piece variety, you'll probably have to get it together first and see what you need. I used factory parts in my 833 OD swap and that calls for a 50.5" driveshaft, but in reality, that was too short---a 51" fits perfect. It is always best to measure. I used a friends 50.5" shaft just so I could get the truck moving before I came up with a 51" shaft on my own.

you use a LA flywheel on the older LA engine. if you use a magnum engine With the nv4500 you use the magnum flywheel = balance + notch for crank sensor.

you good with the old clutch/bell/linkage as long as the nv4500 as long as the mech np435bell shares the same bolt pattern.

the 92-93 nv4500 has a 19 spline input with a 30 spline output shaft = 727-7260 slip yoke works fine.

the 88-V6 d100 had a hydro bell with the A535 5 speed and the 833/833od bolts up to that hydro bell as well.

I used the V6 flywheel PP TOB and ordered up the 93 magnum clutch disc with the correct 10.5/19 spines and not the 10.5/23 spline on the A535/833od input shaft.

at most you need a new 19 spline disc with the rest of the 4 speed fly/pp/tob

for the 2 piece drive shaft? does it have a slip yoke or bolt on yoke for the np435?

my 93-2x nv4500 is slip yoke and the stock 727 yoke worked fine.

if it IS slip yoke just have the front 1/2 of shaft cut 2"

it is bolt on yoke you need to find a front 1/2 of 2 piece shaft and cut it down.

3) have a new front 1/2 built to fit.

you only need to mod the front 1/2 of 2 piece shaft either way.

I may have the stock nv4500 slip yoke for a 7290 joint if you need it.

the top plate and shifter tower change on the HD 10 spine units sometime after 93-94 IIRC so keep that in mind when looking.

the shifter is ok but does not mount up like the np435 shifter.

Finding the thing is the hard part.

look on ebay = ManTrans in Tallahassee. Fl. has rebuilt ready to go nv4500 with 12 month 12,000 mile warranty for 900$-1200$ + shipping

drop it off at the door ready to install.

Ok so, I have to find out if the NV4500 flywheel will work with my 360, or see if I can find an aftermarket one that will work with both?
I want to use my bell and not have to put together a hydraulic set-up.

Getting a drive shaft built here in farm country is no big deal.
Done it before.

I am just asking questions to see if anyone knew what will swap.
I haven't counted out the O-A833 or the A518 yet either. Summer is still a few months away. If I have to spend very much $ I will throw in something I have laying around here. i.e 727 and move onto another project for the time being.

I don't have a 340. I posted a link here in another members post.

you use a LA flywheel on the older LA engine.

Check

your good with the old clutch/bell/linkage as long as the nv4500 and the np435bell shares the same bolt pattern.

Check

the 92-93 nv4500 has a 19 spline input with a 30 spline output shaft = 727-7260 slip yoke works fine.

Check

You need a new 19 spline disc with the rest of the 4 speed fly/pp/tob

Check

for the 2 piece drive shaft? does it have a slip yoke or bolt on yoke for the np435?

Bolt on.

If it IS slip yoke just have the front 1/2 of shaft cut 2"

Check

I may have the stock nv4500 slip yoke for a 7290 joint if you need it.

Thanx Good here.

the top plate and shifter tower change on the HD 10 spine units sometime after 93-94 IIRC so keep that in mind when looking.

the shifter is ok but does not mount up like the np435 shifter.

Look for and older trans
Check

Finding the thing is the hard part.
Check

look on ebay = ManTrans in Tallahassee. Fl. has rebuilt ready to go nv4500 with 12 month 12,000 mile warranty for 900$-1200$ + shipping

drop it off at the door ready to install.

Thanx for all this. Here's a virtual toast for your time spent helping others.
I will be copying all this down for use when I start my search.

I saw that $1200.00 drop off deal
I will be looking for something a little cheaper.
I have free options looking me in the face every day.
I just would like an extra gear at speed.

So great infor on the swap here but Bboog you did not mention your intended useage for the truck.

Are you hauling, racing, commuting?

We have a few NV4500 behind our Ram3500 Cummins tow trucks. Great transmission for our 10,000lbs trucks for towing but for an empty driver. I find 1st way too low with big rpm drops between shifts.

Do you like your current trans granny low? NV4500 not much different.