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Howdy. I recently purchased a used 21 Powerboost and Im loving it so far.
The previous owner was kind enough to install some Fox shocks and coil-overs before he traded the truck. I appreciate that.
While I was crawling around under her, getting to know her a bit better, I saw some lettering on one of the leaf springs which I thought was slightly unusual.
It seems to be a mil-spec number, or something similar. ML-5560-CE
Anybody else have something like that?
Thanks in advance.
As a rule, dual tube shocks should never be mounted upside down. Some people say that monotube or gas pressurize shocks can be mounted upside down, however in time they will develop and extra inch or more of piston travel that has little to no dampening effect whatsoever.
As a rule, dual tube shocks should never be mounted upside down. Some people say that monotube or gas pressurize shocks can be mounted upside down, however in time they will develop and extra inch or more of piston travel that has little to no dampening effect whatsoever.
not sure who or what you are quoting.
Fox, the manufacturer of the shock state that it doesn’t matter, up to personal preference based on the design of the shock. They also recommend to use the rooster tails and install them in manner to give them the most protection.
Ford/Roush installs them body down (like the picture above).
I don’t have an opinion, just sharing what Fox and Roush sent me in an email.
here’s a snip of the instructions for the Roush Fox 2.0 which are the same as the other Fox 2.0
Except that dust and crud will accumulate on the shaft seal and shorten its life.
regardless of what Fox says about functionality.
I didn’t give an opinion on which way I personally think is best, I was responding to the claim they were *upside down.*. According to fox and Roush, there is no *upside down* or right side up.
It is intriguing that the shocks inside the coil-over springs are designed to be “upside down”.
i would assume that if being inverted were a meaningful factor, they wouldn’t do that.
(shrug)
now to further stir the (debate): Boots or no-boots?
if I flip them around to be mounted “right-side up” then I’m also thinking of adding boots but “modifying” them by cutting open the bottom seal so that moisture and debris would fall out of the boot but the boot would still be there to protect it from FOD.
Leaf-spring question
