Yeah, but what is the spline count? Also, is the bolt pattern the same? I assume it is, but am not positive.
Martin
NV3500 - 32 spline output with the standard 6 bolt chevy bolt pattern. There is also an S10 version that runs a 27 spline 5 bolt pattern. It also has the shift tower towards the rear of the transmission.
There were a number of different models throughout the years. The early ones HM290 IIRC are pure crap, soavoid them. They have external slave cylinders, and are well known for breaking, syncros failing, falling out of gear etc.
There are a few internal slave cylinder models based on year range. The early ones have multiple shift rails and have issues with falling out of gear and syncronizers failing, but arn't quite as prone to catastrophic failure.
The later ones have a single shift rail, but there are again two versions from the old body style, one with a single piece cluster shaft and one that has removable gears. The removable gear unit is newer and better, but I am not sure how you'd tell the two apart without a tear down. Both seem to have the syncro and falling out of gear issues dealt with.
There is then the version from behind the 4.8L V8s in the next body style of trucks up until 06. They are pretty stout, quiet and smooth shifting transmissions with a noticeably shorter shifter throw as compared to the older ones. I had one from an 04 behind my hopped up and turbocharged 6.2L diesel in a K5 I used to own and I beat / abused that transmission on a regular basis (clutch drops, power shifting, shock loading, you name it, it took it!). It never showed any signs of failure after several wheeling seasons.
