NV4500 swap installed and rollin!

[Chevy3+3]

Originally Posted by DirtyLarry

Looks great! You’re going to love having overdrive

Lots of ways to skin a cat with mating a NV4500 to a NP205’s. I went the avenue of replacing the long 32 spline input on my round 205 to an early short input to avoid using the AA spacer between the trans/tcase. That also prevented the need for any driveshaft mods.
I used this input gear in my 205


And removed this one....


View of how my round 205 is mounted to the NV4500 rear cover

From everything I read before the swap I was almost sure my t-case was going to end up rearward about 1.5" from its original location. I was pleasantly surprised even with the adapter that all my drivelines bolted back into the same spot.

I do like the thought of how you used the shorter input. Not only did it help by not having to buy an adapter it also allow the weight of the 205 to be closer to the mounting flange of the nv4500. I know the spacer only moves the 205 back approx. 1.6" but that just amplifies the weight the NV4500 has hanging on its back. I figured the rod from the t-case to the bellhousing bolt will aid in stabilizing and relieving some of the hanging stress the 205 puts onto the nv4500.

The NV4500 is a robust piece but a cast iron tail housing would make me a little more relaxed since the 205 is so hefty.