akbri907
+1y
Maybe the shops where you are use a torch, but mine were done cold. I waited at the shop for them to be done, and they were handed back to me cold, with no signs of heat being used. I'm pretty sure they used some sort of press, based on the marks in the dirt on the springs. I drove on them for two and a half years with no sign of stress or fatigue on the spring pack. I know that torching springs is dangerous, and would not have had them do that. The reason I did that over going mono, was because I did not want to loose the load capacity, the job I had at the time paid me extra to deliver safes after work, the gig was good for about $300-$400 extra a month under the table. Anyway, like I said before, I was passing on information