Need advice on what Bilstein shock to run

[Jcwilson6]

I am interested in getting some Bilstein 5100 series shocks for my truck. I drive on the street and highway mostly with some travel on unpaved forest roads for camping. Very little or no time is spent on roads that would require me to engage 4 wheel drive. I have a 2 in all spring lift with custom springs from Alcan and am running 33x12.5x15 BFG all terrains. This puts my truck just over 4 in higher that stock. Parked on flat ground, my shock length, center of eye to center of eye is: 17.6 in front and 19.625 in rear. The distance from the top of the axle to my bump stop is 6.5 in front and 8 in rear. If I lift the truck by the frame and let the axle droop, the length of the shock becomes 20 in in the front and 21 1/2 in the rear. I had come up with the 33-233970 thinking I would use 4 in of compression and 3 in of extension beyond the static position. Is this the correct selection or do you have better advice?

Thanks !

[Richard]

Originally Posted by Jcwilson6

I am interested in getting some Bilstein 5100 series shocks for my truck. I drive on the street and highway mostly with some travel on unpaved forest roads for camping. Very little or no time is spent on roads that would require me to engage 4 wheel drive. I have a 2 in all spring lift with custom springs from Alcan and am running 33x12.5x15 BFG all terrains. This puts my truck just over 4 in higher that stock. Parked on flat ground, my shock length, center of eye to center of eye is: 17.6 in front and 19.625 in rear. The distance from the top of the axle to my bump stop is 6.5 in front and 8 in rear. If I lift the truck by the frame and let the axle droop, the length of the shock becomes 20 in in the front and 21 1/2 in the rear. I had come up with the 33-233970 thinking I would use 4 in of compression and 3 in of extension beyond the static position. Is this the correct selection or do you have better advice?

Thanks !

If bump location is not altered the stock shock compressed length can be used. Measure for full droop length and get a shock that meets the requirements of these two points. Where ride height is in stroke of shock does not matter. It will react the same no matter where the static position is. I have 5100's on my lifted 2wd 1994 Chevy. Very happy as they provide a good ride.

[Jcwilson6]

thanks Richard