shiftpro
Full Access Member
- Joined
- Aug 31, 2012
- Posts
- 4,855
- Reaction score
- 6,094
- Location
- BC Canada
- First Name
- shiftpro
- Truck Year
- 73-87
- Truck Model
- 1500, 2500, 3500
- Engine Size
- 350, 383, 454, 496!
I got Rough Country and main reason is because the others wouldn't warranty or advise their front springs being used with a big block. I have their 6" kit just not using the rediculous 4" blocks went shackle flip in place of them. I als got the Energy Suspensions bushing kit the RC kit came with poly but of unknown origin so they weren't used.
Tuff has the HD spring packs, one extra leaf for big blocks.
It's funny the others you mention don't advise big blocks as the spring rates are high enough for a Cummins.
A few years back someone from another site, I think perhaps CK5 or Pirate, found a list of spring rates from most
of the popular aftermarket guys. I don't now how accurate it was but my 'seat-of-the-pants' scientific experience
can't argue with it.
The higher the lift, the more the rate ramps up too. 6" was above 4". I would imagine again this is from the arch.
Anyway, dead horse stuff here and I have a job waiting...