I was an early adopter of the 51s, June 2016. Currently 16k miles on them. Very little information in the first year. First dissapointment was the fact that in order to adjust height, you must remove and decompress the spring (special tool) since the threads are aluminum and will deform under pressure.G'day Phos,
comments from DU, on the 51's ... this could be specific to DU....
Earlier builds had a lot of failures, mainly cracked n broken shafts and seals leaking... Warranty DU is always a challenge - especially from ARB - so many folks had trouble getting them fixed. Many of these failures are due to ARB continually thinking the Prado 150 and FJ are identical...so anything good for the Prado will work on the FJ - a mistake they seem to repeat.
The 51's are primarily developed for the Prado 150...with a spin off to the "identical" FJ ... but the Prado isn't identical ... its much heavier and the geometry is different enough to cause issues with valving and stress to cause a higher failure rate in the FJ.....
They may have remedied the issues now .... but in the beginning ...a lot of heart ache and headaches....
( not the first time ARB have assumed Prado/FJ work exactly the same - early Bullbars / skids - had the same issues )
The stone guards for the rears ..simply break and fall off ...
I'm not trying to bash ARB, some of the products they make and market are very good ....some not so good !!!!
They cannot be adjusted on the vehicle.
Over priced (DU) for what they are...
Just my 2 cents worth
Well six weeks ago I developed a nasty front squeak, picture large garbage truck. Finally threw in the towel and brought into my dealer. They spent a half hour and concluded the 51 spring on the front left.
I quickly searched and realized that since I got them this has been an issue along with cold weather clunking which I also have. There is now a version 2. Long story short, ARB told me this week they won't cover or assist in any way.
Like you say, some ARB products very good. I have and love: front and rear bumpers, roof rack, fridge. The 51s, not so much. So I am now looking to replace the fronts - of course I cannot invest in 51s again just on principle no mater what they changed.