Read and understand a little deeper...
I'm assuming your referring to a plastic spacer bolted on top of the front shock assembly, and you still think it's a good idea to bolt ANOTHER one to it?....There's a reason you can't buy one spacer the same thickness as both...it's poor engineering....
Is that so his UCA doesn't hit anything at full droop?...But that's not a "stacked spacer"....is it?....Does he also have a lift spindle?...The only ball joint spacers I've seen are for bolt in upper ball joints(actually riveted from the factory) and many of those have issues with the ball joint running out of travel...Does anyone have a picture of this type of ball joint spacer?...
No, I don't what you do or know, BUT I do know what I know....
1) Just because some people have done poorly designed and executed lift kits doesn't mean they know a dang thing at all...And I've fixed more "professionally installed" kits then I can re-call...all from shops in the business for years and all who claim to be suspension experts...:ftard:
2) Because you or someone else has spent a lot time "modding" their truck doesn't automatically make that person an expert in engineering someone else's suspension...
3) Just because you ( not really picking on "you"...) can lift something doesn't mean it has anything to do with performance....and many times I hear "I don't care about performance, it's just going to be for around town..."...and the real difference between lift at any cost (read stacking spacers) and performance is design & engineering...
4) My favorite part..ME!....I don't claim to know it all, but I've been in the automotive trade for over 35 years ( spent some years in the Aviation field and even have a FAA Certification to prove it...) and it has ALWAYS been about performance....design...and engineering...I don't know how to take a truck and slam it to the ground with "bags n' dubs"...nor do I know how to take a great sports car and lift it to run 40 wheels...BUT I do know how to take a vehicle and make closer to it's true potential in the performance direction....
Hell haven't even got to "Loufish"...the racing years...
BTW...I hope you don't think stacking rear blocks is "alright" because others have done so...
Last but not least....let me share a few photos of a guy who thought he really knew what he was doing...