Originally Posted by BGTV8

Not quite so squeezy. Options

https://www.hgtprecision.com/contact/

US dealers here: https://www.hgtprecision.com/dealers/usa/

https://www.ttindustries.com/car-gearboxes/ TTi GTO to 750ft/lbs or TTi XHD GTO to 1000ft/lbs (but only 5 speed)

The price is around NZ$14K which will be about 2/3rd in USD

My 3.5" CrMo tail-shaft cost A$1800 with hi-capacity yokes

They can also be found on the motorsport sales websites:

https://www.my105.com/ListingDetails/id/20474/latest/1