[dieseldawg142]

if you go with 35's, i would put some 3:73's in there. your 305 will thank you, & your 700 should keep hiway rpm's decent.
i had 3:73's in my k5 with 35's, could chirp the tires, 400 sb though. with a t350, revs weren't the best
my stepper also has 3:73's with 33's, 350/5-speed, easily spin the tires, gets about 15 mpg with the overdrive