I don't know the details for your truck.
But in general 2" is as far as you want to go, after that things don't work out so well, and it gets a little fishy.

I personally don't care much at all for body lifts and would only use one as a last resort, and only a small one then, less than 2" for sure.

•1951 GMC 250 in the Project Journals
•1948 Chevrolet 6400 - Detroit Diesel 4-53T - Roadranger 10 speed overdrive - 4 wheel disc brakes
•1952 Chevrolet 3800 pickup
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"First, get a clear notion of what you desire to accomplish, and then in all probability you will succeed in doing it..." -Henry Maudslay-