i can't see in any way how the constant and random metallurgy metal on metal shock factor as the lunch-box or lock-right does not take it's toll on U-joints , pinion splines , and gear boxes too ?
the sledge hammer effect transmits all the up through the drive train ...
this equals a much shorter over all components life span from a fundamental stand point
the ARB is a on demand system , correct Kurt ?
so you can be at a stand still and safely engage and disengage it
the round the corner topic with a ARB and tire binding and chirping when ARB engaged is LOW impact metallurgy harm
only rubber tire high impact harm i will agree with
It does take a toll on all of the mentioned parts. So do larger tires, so does the weight from bumpers, winches roof racks, etc. Everything we do to an original Cruiser is a generally speaking a compromise. While the Lock-Right will reduce life of some components, I don't think it's accurate to quantify as
"much shorter". Metrics to back that up simply don't exist and are not supported by the thousands of users out there with Detroits, Lock Rights, Aussies and Lokka's i.e. they are not calling frequently ordering u-joints or ring and pinions. We've sold hundreds of LockRights in the last 30 years, I can't think of too many issues overall. I bet we've warrantied damage to the locker itself on just a handful over the years.
Yes, the ARB is on-demand, as is the OE Cable, OE electic, Eaton, TJM, etc. They can be activated when stopped or when moving so long as wheel rotaton is synchronized (same speed). For a semi-float rear axle, options are limited, OE stuff is off the table, ARB is 4x the the cost. Don't get me wrong, I
love ARB Air Lockers, have driven them around the globe, professionally rock-crawled with them, desert raced with them (think Baja 1000), hell we drove across Greenland with them. They are robust, they work when you need them and act identical to stock when not engaged (most models) but for some, the use case of the LockRight makes sense.