Couldn't really find a direct answer to this so apologies if it's been covered. I own a 2008 ML GLX-R 3.2 Auto and need to install F&R Lockers. Unfortunately mine doesn't have the factory rear locker. Went to TJM & ARB for pricing as I dont want an auto locker or the e-locker ( Heard the e-locker disengages if rolling back ). TJM has apparently the more superior units and also the most costly at $1000 more installed. Heard the TJM unit has less moving parts = less drama's. Can anyone shed some light on these in the ML triton ? Had ARB Units in my previous Car, JK Wrangler and they were good, however there appears to be sealing issues that I read on the WWW.
Below is a statement from elsewhere on the difference, if true or not, not sure.
"The TJM has a lever that locks the diff. The air components are stationery and do not turn with the diff. Roughly similar to the old maxi drives. This makes the air lines easier to seal. The ARB engagement device is in the actual diff centre, so that have to transfer air from a stationery diff housing to a rotating diff centre"
Just after some unbiased opinions before or splash out close to 5K on the TJM units or 1K less for the ARB units.