I've been selling these for quite awhile, but I don't think anyone really knows about them. Chuck at FLT has been using them for a few years with excellent success. We have had them in several 800hp+ Silverados and Escalades that have swapped to a 4L80E with the NVG-149 Transfer case. Not a single one has failed yet unlike the turned down output shafts for the 4L80E.
This swap is very easy to to do. You just need to take apart the stock transfer case, pull the input gear out, and put this new input gear in. Takes about 30 min to 60 min depending on your skill level.
Please PM me for pricing/availability
UPDATE 4/18/2018
I still make these. I don't always respond to this thread because the board doesn't always email me when there is a new post. Just send me a PM and I will get back to you shortly.
4l80e Nvg-149 32 Spline Input Gear Adapter
in AWD, Differential, & Transmission Tech
Posted
I need one of these made please [email protected]