LSInnovations

iTrader: (7)

Im looking to fit alot more tire on the back from the 26x11.50 et streets that are on it now.

Ive got 4.56 gears so on spray I want to run a 30" tire to have the right gearing.

Im looking at going with 390/40/17 M&H Drag Radials on 17x10 Wheels.

# Tread Width: 12.1"
# Section Width: 14.8"
# Diameter: 29.5"


Does anyone know if they will fit? Also what backspacing would I need for a 16x10?

nightrunner

iTrader: (4)

im pretty sure you will hit the leaf springs

turbobeserker might know something

litreddevil

iTrader: (4)

if it don't hit the springs it will stick out like mine do and you will get rubber from the front to the back

ColtSteele

you may want to try a 17x10 rim

nightrunner

iTrader: (4)

i wonder how many caught that but didnt say anything.

i cant believe i didnt notice that

oneslammedgmc

iTrader: (1)

I just saw the 390, is it suppose to be 315 or what?

StrokerAce03

iTrader: (7)

Might need a 17x12 with 7" of backspacing to clear that setup; and it'd still stick out. 7" is about the max I think you can run on these trucks.

ColtSteele

I believe it will actually take a minimum 12" wide for the 390-40-17.
M&H also has a 325-45-17 but it only comes in at 28" in diameter.
FWIW - I'm running their 275-50-17 right now and I really like it.

moregrip

iTrader: (8)

watch the the overall tire width vs BS, it can get close

SnakeOiler

iTrader: (6)

As Stroker said, you will need a 12" rim. Even with that, a 7" backspace will be hit or miss on the springs (every truck is made just a little different) - I would go 6.75" backspace - just to be safe.

No matter, the tire is going to be almost 3" sticking out - if you are OK with that.