assdragginsdime
+1y
only way you will ever notice a difference in speed from mounting the valves on the tank, vs on the bags, is if your running retarded pressure and hopping.. Go ahead.. run 1 set of valves on the tank,a nd 1 set on the bag.. see if you notice any difference.. i guarantee it wont be very noticable, if at all.. Theoritically, the truck will actually ride better with the valves on the tank. Since the air is stored in the airlines from the bags all the way to the tank, There is more air being compressed, Thus lowering the spring rate of your bags.. allowing for a softer ride. If you ran 5/8" airline you might be alble to get almost 1/2-3/4 the total airspace of the bag Just in the line alone.. That would probably give you a noticable change in ride, then if you were to rout the valves right there on the bags.
as for your fittings. get em all at a truck store that sells stuff for tractor trailers and shit. You can order them from suicide doors. But make sure you plan out every line and shit first. so you know exactly what you need.
As for your link setup, you really dont have very many options. forward 4 link isnt going to work, since the gas tank is in the way.. you can run monoleafs but risk not laying out and breaking a leaf..(not good)
You can run a reverse 4 link.. And yea they work and all. But its a shitty setup. They pull the driveshaft out of the transmission, And transfer your power to the ground completely backwards.. Most people run them problem-free. But those are things that are possible when running that style link setup
What i would do is get under there, Fab up a crossmember thta goes over the gas tank and connects from frame rail to frame rail. Then you can have suicide doors make you a custom wishbone. or make one yourself if your welding skills are striat.. But have a custom wishbone made, You can do 1 mounting point on the top of the differential, And the other 2 on that crossmember you made over the gas tank
then run your lower bars as you would any other forward link setup.. That would give you a decent forward link setup that would give you minimum pinion angle change and a smooth operation with no worries of your driveshaft popping out or anything..
OR
you can do a 2 link. which is easily built using soem 2x2 box tubing, can be built for under $100 in most cases.
downfalls are:
youd need a panhard bar or crossbar to center the axle from moving side to side. Your pinion angle will constantly change with height. You can setup your pinion angle at ride heights and have no problems unless you ride really high or really low... at that point you might experience some vibrations from the u-joints.. Other downfall is that you get absolutely no axle articulation. so no side to sides at all.
so theres a few choices. Id stick to a forward link. 2 links are ok if you know your limitations and set it up correctly. I had one on my s10 with no trouble, and know plenty of people who ran them with no trouble. But i also know plenty of people who have had tons of problems. its all in the setup