[Tf175]

I have been chasing the air leak that causes the left rear suspension to go down after a day or two on our 86 . The valves seem to all be located in the engine compartment on the right side , forward bulkhead and I have not found any leak in that system. I suspect there may be a leaking air bag(s) or something in the plumbing going to the bags . I'm thinking the wheels need to come off to access the air bags and their plumbing . I have a 12 T bottle jack , but I think it would be easier if I had something with larger capacity . Harbor Freight has air/hydraulic jacks and 6 ton jack stands . I have noticed in posts that some Gurus use floor jacks , not clear on the capacity . Any input as to safe and effective procedure greatly appreciated . 
Best wishes to everyone in the coming Spring !
Thanks ,
Chris