I have an 07 FX4 and want to crank my tbars and was wondering if you can replace the rear 2.5" blocks with 4" ones. It sits pretty level now so I thought if I crank the tbars 1.5-2 inches I would want to lift the back the same. Just wondering if anyone has any info on this? Thanks

 

I would use Chevy shackles. They'll lift your back up 2".

 

Look up belltech 6400 shackles. They are the chevy drop shackle and you flip them to get lift.

 

Thanks guys. WIth a tbar crank and the shackles would you be able to run 33/12.5/15 tires or would 32/11.5/15's be better for this setup

 

you could run 33s, however a 32 inch tire is more practical and wont rub as much

 

im pretty sire the fx4 has more torsion bar lift set from factory so you will not get another 1.5-2" maybe more like 1"... i think anyways