PSI Recommendation for Firestone Sport-Rite Air Helper Springs on GMC Sierra when Pulling Camper

Updated 02/17/2017 | Published 02/16/2017

Question:

What should I run the air pressure at on my 2003 gmc Sierra with my truck camper on the back it ways 1650lbs thank you I just dont want to o er full them it didnt tell me how much aair they take

asked by: Mike

Helpful Expert Reply:

The Firestone Ride-Rite Air Helper Springs # F2250 on your 2003 GMC Sierra can be manually adjusted between 5 PSI and 100 PSI. According to the installation manual, the Air Helper Springs will typically support about 50 pounds of load for each psi of inflation pressure (per pair). For example, 50 psi of inflation pressure on a pair of helper springs will support an approximate load of 2500 pounds per pair of springs.

Also, as a simple rule of thumb, you will want to use only enough air pressure needed to level the vehicle. After loading your vehicle and trailer, just take a look at your Sierra from the side to see if it could use less or more air pressure to make it level.

I have also included the instruction manual for your review. The inflation information starts at the bottom of page 5.

expert reply by: Chris R