I'd like to hear a horror story of front lift blocks. I'm not trying to start a war here, since every truck and instance are different, but for the past 8 years I've been daily driving my 71 with 2" lift blocks and 2" lift springs in the front (Total 4" lift, bigger blocks in the rear). I haven't had any problems at all. I also have some caster shims under those for a 3 degree pinion tilt.
__________________
T.Y.N Custom Works..... Because "Stock" Sucks!
1971 K 10 GMC Long Bed
1977 Formula T/A Frame off Resto-Mod
1995 FXDL Harley Low Rider
1985 C10 ShortWide 91 Burb front.