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.