4x4 brake test

For myself I test all 4wd's with the Tapley. I know it isn't necessary in all cases but it does save the risk of damaging something (which would then be down to me, and potentially very expensive!) but it's also about the only chance I have to get out.

Yes, as you may have realised, I don't get out much!

Oh, and just to cause panic and terror amongst us all, I was told once that some Rolls Royce's (1980's?)shouldn't be roller tested because the gearbox doesn't like to be driven in neutral and could break. Now, this was only hearsay but does anyone fancy breaking a Roller's gearbox?

Our brake tester has a 4x4 test function
The rollers turn in oposite directions so diff rotates.
Works ok on most 4x4 set ups

I decelrometer all 4wd those will electric park brake I put in rollers are rollers have a4wd function as well but never used for mot

beats the 20s/30s version where the brakes drive off the box....drop in brake tester and no brakes,the official rolls opinion of the time was"given that the vehicle is not moving why would you need brakes?"not the sorta sh1te you forget....

surely youd just run the rollers together assuming mechanical lsd/non permanent 4wd

no vehicle with LSD should be put in standard rollers