[HO455]

I put one in my Burban. The installation of the GV unit was simple I made it more complex in my case as I also went from a T400 to a T350.
I bought it used with a T350 for $600. I ended up having a drive shaft (converted to a one piece) made that was about $450. So I'm into it about $1100 with everything. Over the years I've bought 3 of them used. I've never paid more than $1200 for one. That one was back about 1994 when new ones were $1800 and so were used 700R4s.

Same as you I wanted less RPM on the highway. Definitely worth it to me. A couple months back I drove the truck with out the GV operating (I had to remove the GV controller as part of a different problem) and I really missed it. It certainly makes the truck quieter going down the road.

They do need the oil changed ever 10k but it's only 24 ounces of oil so it's not a big deal.

The link is to my Burban maintenance thread. Scroll to post 641 to see my notes on the conversion. It includes the ordeal I had with my local driveline vendors.

https://www.67-72chevytrucks.com/vbo...698377&page=26

I eventually removed the GV switch module and replaced it with smaller components that I installed in my ashtray to clean up the look of the dash. Post 748.

I really like mine. I can have it in OD at 35 to 40 mph and not worry about it toasting the transmission like a 700R4 would.

The only minor quibble I have is at certain speed/RPMs when you punch the throttle the GV doesn't disengage. I have learned to expect that and I manually disengage it, with the foot switch, when I punch the throttle