A vacuum reservoir will be a steel tank, typically mounted under the cab or step. I recently added a tank to my truck, it did not originally have one with only having the HydroVac brake booster. I installed a 2-speed rear differential and thought for good measure a reservoir would add some vacuum capacity for shifting and braking. I used an empty 30 lb. refrigerant cylinder as the reservoir and mounted it on the passenger side under the step. The factory provided a tee in the vacuum line and a hole in the frame rail at the tee.
Last edited by 78buckshot; 02/20/202412:52 PM.
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
