Compression Ignition Addict
Join Date: Dec 2009
Location: Parkland, FL
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37"s vs 40"s HELP!!!!!!!!!
I have been trying to deciede lately what I want to do for my suspension on my 09 6.4. I am currently running an 8'' fabtech radius arm kit with basic fabtech shocks and an add a leaf. I am not overly happy with the ride and have been talking to Trevor Hall at PMF. The guys is awesome, probably one of the most knowledgeable Suspension people in the entire Industy. Needless to say, all my future suspension will be PMF as well as my future vehichles.
We are debating where to leave it at 8", 4 link it and run coilovers with his traction block system in the rear and stay on 37" tires
do a 12" 4 link kit with coilovers, traction block system and 3.5 in drop shackles for the leafs in the rear and be on 22s and 40s.
To anyone who would know, what will the step up from 37 to 40 be like?
will it be that drastic of a difference?
I do not really care about how fast it is anymore, after 2 trannys, I have proved my point.
Right now I can cruise at 65-70 mph and be at 1650-1700 rpm with my current 3:73 gear ratio.
Just let me know how drastic of a change it will be
09 F250 Harley Davidson CCSB