Yeah totally .. I have been there a few times , you are stuck ... flip the switch ... and ... nothing
The locker unit itself is great ... probably indestructible in a stock toyota setup ... The 2 weakpoints are:
- Compressor leaking where reservoir cup is mating with the compressor .... After years of trouble a small bead of black liquid gasket now took care of it
(I am still installing a backup air system with a few tanks ...)
- The fitting where the airline enters the axle housing ... the old setup sucked bad ... the new setup is better....
The unit hasnt let me down recently and if it works is the best you can get
Matt