Anything you want to find out about Northstar it is very easy to go directly to the source, the boss.
Call them at the factory, they will answer any questions...
Their 650SC now has the wall raised to allow access to the cassette..
No doubt they would do the same for an 850SC if not already.
They also make a 950SC now.
Give them a call, its nice to be able to talk with the man who actually runs the place...
Torklift and Northstar are tops for customer service in the TC business.
2004.5 Dodge 4x4 SRW Diesel, 245/70R19.5 Michelin XDS2, Bilstein Shocks
Torklift Stable loads, BD Steering Stabilizer Bar, Superchips "TOW" Programed,Rickson 19.5 wheels
2006 8.5 Northstar Arrow, 3 Batteries 200 Watts Solar,
12 Volt DC Fridge.