What lift to get?

[hellonwheelsd2]

Im looking to lift my truck about 3-4 inches. I already have a 3 inch body lift but want it a little higher. Its a 3.0 and I wanted to know what lift would be best to get that wouldnt effect the trucks transmission that much.

 

[bigcountry]

the only thing that would effect your trans would be the body lift

 

[Slim]

the only thing that would effect your trans would be the body lift

How so?