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Robby Gordon used to make large internal bypass shocks. He ran them on all his trucks. The main problem with them was oil capacity. In races like san Felipe they would over heat. This is one of the main advantages of 2 shock per wheel, more oil. Then when you make your bypass shock bodies 4.5", you can hold a...

Cascade has nailed it. As someone who has a Spec truck I feel like he has some really good info. My brand new spec truck is 5300 lb with a 92 gal fuel cell and 525 hp. The speeds we hit things at are crazy. I always say its like throwing a hammer through the desert. The frame of a...

I was told that one year Foes had a bypass shock with a carbon fiber leaf as the spring. Not sure what year. Back in the day Foes was a part of the Nissan Factor team.