I went on a tangent of research on these last night. I'm due for a upgrade from my Icons and was planning on going with Fox, but the rebound adjustment on these carries a lot of weight in my book. I found lots of installs on 4 runners / Tacos with pretty positive reviews overall.
High Build Quality
Springs need to be compressed to adjust preload.
Cost? (same price as other premium adjustables like King/Fox)
Lacking tune-ability outside the pre-set tune.
Anyone got anything to add?
Aren't the upper mounting studs on the newer gen rear shocks larger diameter? Might need to drill that hole out as well. My recollection is that the front lower mounts only needs to be widened a couple thousandths.
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