OD tranny hard to come by?

I run my GV as a splitter quite often.( manual trans). A lot actually.
If you run it with an A-998/999 with the low gear set, you get;
2.74-2.14-1.54-1.20-1.00-.78 GV ratios in red, splits of .78-.72-.78-.83-.78od. You get to short shift first and you get a short 5th.
If you ran it with 3.91s or 4.10s it would be killer on the street, yet, calm on the hiway.
But like somebody said, if you gear it right,you will only be using two gears anyway to 60 mph so it really isn't all that helpful. However on the WOT run blasting thru the gears with just 1200 or 1300 rpm drops is extremely addictive.
But the best part is running 3.91s to 4.30s, cuz the engine spools up really really fast.
To be sure the GV does have a couple of idiosyncrasies that have to be addressed before you go nuts on it.
It fits in the tunnel no problem, like they say, just a couple of dimples.
Thanks for this reply..But I don't see how it tells me anything about cross drilling the mainshaft of the A500 for an oiling problem ???