I like to use 8 but I am not sure if in that case it will make a differance. I think you should be fine. I think you only need 8 for like hitches and motor mounts thing like that.
Do you have a name brand kit. When I had my Skyjacker one it came with 8
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2001 Steel Blue Metallic XJ
Rocklizard Fab 3.5"/Gila Monster Quarter Guards/33" Trxus MT's/PMW Door Armor/Hood Vents/IPF H4 Conversion/
1967 Chevelle SS 396 Deep Plum Metallic
Ok you guys with t-case drops did you use grade 5 or 8 bolts? I used 5's in mine but I wonder if it should have been 8" instead.
I'm going with Black diamond 3in system................the bolts will should work ...............make sure that you get your drive shaft angles are right ,you may need shims.