The vacuum tank (on my 1998) is bolted (2 bolts) to the bottom edge of the pass side inner fender well, on the engine side (bolts accessed from wheel well).
If you move the radiator overflow/ windshield washer reservoir tank assembly, you should be able to see the ball , down to the left of the heater control valve, and below the A/C evaporator housing.
Rod J

 

Yeah the ball is on the passenger side. With the dog house removed I can see it. I just couldn't figure out a easy way without removing bunch of stuff to do a 2 minuet job.

Now I just need to find where the short vacuum hose needs to attach.

 

3 way check valve: larger inner diameter hose feeds from PCV vacuum port. Two smaller diameter hoses go to: 1) vacuum reservoir / canister and 2) to a hose port that runs through the firewall to behind the climate control gauges.

 

 

I see the #11 (on the first diagram) similar to my shop manual I got. The short hose #34 goes in to the #35? Mine didn't show that. I'll be looking for the #35. I hope it's there. When I find #35 and plug in the loose hose and it make the ride idle better I'll do a better R/R. I may cheat and move the three way valve closer to the ball since I really don't want to go in to it to do that job "correctly".

 

Also thanks for the diagram SlowRider.