I agree with WhitH. As to adding more height with stock arms, I think there are limitations as to how far you can go before running into issues. When would the fixed arms and their attachment points start to pivot the axle back? Also, unless you do some trimming or add adjustable or longer arms to be able to move your axle forward even on a moderate lift, you'll be left with a huge wheel gap and stuck running 285's.......like this, Texas style
'03 Ford E350 7.3L Diesel
SMB RB50
Quigley 4X4
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