Oh, and my NV4500 is a 95 year...that was a hybrid year. So mine has the same gear ratios and same shift tower of the 96+ years, but I have the external slave bell housing of the 92-94 years
Ok, that will have the lower first gear ratio, the external-slave clutch bell housing that swaps with the SM465 bell housing, and the large integrated shifting tower (so no aftermarket quick-throw shifter upgrade).
Mine is a ‘92 but I put on a late model shift cover with the bolt on shift tower. I also drilled and tapped the trans case and bolted it to my SM465 hydro bell, I didn’t have the NV4500 bell or so probably would have used it like @Kay86K5 did.

If you're going to drive on the highway a fair amount then the 5th gear is a nice addition. The common '5th gear nut' issue usually happens behind the Cummins 6bt due to the vibrations. Sometimes happens behind v8 engines but not nearly as often. They are absurdly picky about their oil and it's expensive for what it is.
For a truck that gets towed on long trips (offroad only or local driver/offroad) then the sm465 is a better option due to the simple ruggedness, same/better 1st gear ratio (depending on nv4500 year), and dirt cheap.

Yeah, and I was also swapping from auto to manual. If my truck had originally been a manual truck with hydro pedals already in there, I would probably had gone the route of you and @campfire and done the hydro SM465 bell to keep all the factory clutch stuff to make it simple. The fact I was swapping from auto, and had to do everything from scratch...and the NV4500 I got came with the external bell plus the slave and hydro line with it...it was a no brainer for me. But there are lots of ways to accomplish the swap and make it work for individual needs
I agree with about everything stated here. NV4500 5th gear problems really only occurred in the dodge versions behind Cummins (even the dodge versions behind the V10 didn't have that much of a problem). The GM versions usually just had syncro's wearing out after some miles were on them (which most all manuals have at least some of that after some higher miles). Not to say 5th gear problems haven't been documented behind gas motors, just not nearly of a problem.
And if you really want a manual in your crawler, I agree SM465 is probably the better way to go, just get a later hydro bell housing/pedals and swap those in to make it a bit more comfortable of a ride. Much cheaper to pick up, gearing is roughly the same, some later versions had 32 spline outputs, yada yada. For mainly a crawler that might see barely some road use, you will probably never use 5th gear, haha.
The reality is there are +'s and -'s to each tranny. Manuals shine in some places and suck in others, auto's shine in some places and suck others. Even each tranny has it's own quarks that you have to deal with sometimes, and sometimes you just draw the short stick and end up getting a crap tranny or two that let you down (though that might not be the norm for the history of the tranny). Just figure out what you want out of your truck and what you can afford and start building![]()
Can I use my mechanical 465 bellhousing on the early nv4500?
So the NV4500 I’m looking at is out of a 93 they said what will I haft to do ???Yes. As long as you're willing to drill & tap the face of your NV4500 (like @LNielson and I did), either of the SM465 bell housings will fit. AA also sells a mechanical-style bell housing for the (late model?) NV4500, which is how @Chevy305 did his swap. But the 92-95 NV4500s and the 96+ NV4500s do not readily swap bell housings, as the retainer and clutch linkage are both different.
So the NV4500 I’m looking at is out of a 93 they said what will I haft to do ???
Thanks a lot any idea where I can find the pedal assembly?Read through the first few pages of my Blazer thread (link) to see pictures of how the tranny and bell housing went together Mine is from that early series so it will look identical. There are also some NV4500 tech threads on here (one of which is also mine) that you can find via the search button.
Thanks a lot any idea where I can find the pedal assembly?
There are two versions of hydraulic clutch pedals. Vacuum brakes and hydroboost brakes.
Thanks a lot any idea where I can find the pedal assembly?
Really intrested would be cool to meet you too.I might have an extra pedal assembly. Not sure if it's manual or hydro
Is that for hydro boost braking too I’m just useing the vaccume brake boosterI have a hydro clutch hydro boost pedal box and pedals if you want it.