NV4500 vs NV3500

[RichLo]

You mentioned gas mileage with the 4.3... you'll get better mileage with the NV3500, Less rotating mass. And there is no way you can blow it up with a 4.3.

NV4500 or SM465 is WAY overkill for anything but a built SBC or factory+ BBC.

 

[Sean Buick 76]

Behind a 4.3, the nv3500 would be my preference. It shifts easier, and with less rotating mass, it theoretically would take less energy to turn. The nv3500 is a stout transmission when not subjected to shock loads or excessive power levels. Don't turbo the 4.3, and it will be fine!

Still turbo the 4.3! lol

 

[Rock Hard Concrete]

A non abused nv3500 is perfectly fine for half ton truck use. The weakest part of a nv3500 is the shift forks. They are made from aluminum with a wear resistant coating. I had the nv3500 in my gmt800 rebuilt because teenager po liked to shift way too hard. The gears were still in perfect shape.