Jerry, that is what I did when I swapped my single speed rear pig for a 2 speed. The original 1/2" steel vacuum line has a factory tee and an access hole in the frame rail, added a refrigerant tank, tee to the 2 speed selector, all is good.
1957 Chevrolet 5700 LCF 283 SM420 2 speed rear, 1955 IH 300U T/A, 1978 Corvette 350 auto, 1978 Yamaha DT175, 1999 Harley Davidson Softail Fat Boy
| 
