Hey guys. I'm new to the forum and my '06 Hemi I tried searching but couldn't quite find what I was looking for.

I'm considering getting 37" 13.5 wide 20" tires. I'm pretty sure that these will fit under my current 2.5" leveling kit + the 6" suspension lift that I will be doing shortly but I want to make sure they will not rub on the arms and such.

Also, will I need a certain backspace/offset? I've seen spacers/adapters that push them out farther to avoid rubbing.

I was thinking of getting 10" wide rims.

I actually would like to have them stick out the side of the fender 1-3" or possibly more because I'm planning to make some custom fiberglass "offroad" fender flares.lso

Also, what size gears would I need to "keep my power" for this size tire? It is a 4x4.

Thanks in advance for your input.

 

Good luck to you on your build

 

Awesome. Thanks for the input! Is there a resource on here somewhere that I can use to figure out what offset I want?

 

I cant remember off the top of my head BUT for some reason I think I had some 20X10 with a 4.5 off set at one time and they say out perfect with 35-1450-20s and didnt rub

 

What you are looking for is a negative offset and a backspacing of around 4.5". Since you didn't specify I would hope that you have a 2500 with SFA. IFS on a 1500 ain't gonna handle it for long.

4.56s for the gears or the thing is gonna have trouble getting out of it's own way...

 

It is a 1500. So what do I have wrong with my brainstorming? What is SFA and what is IFS? Sorry, I'm new to all of this!

 

Let me also add that I have a 6 month old baby girl and I want the truck to still be as safe as possible.

 

Nothing with your brainstorming.

Basically, an SFA truck has a SOLID FRONT AXLE while an IFS truck has INDEPENDENT FRONT SUSPENSION. The way that power is transferred to the front wheels is thru a couple of spindly half shafts, commonly referred to as CV axles.

An IFS isn't nearly as durable or as easy-to-modify as a solid axle, the system yields a more car-like ride and is reliable when used in a conservative manner, but when the angle of the CVs is increased, or they are forced to carry a lot of weight as in bigger wheels and tires, they are prone to failure.

Some on here run 37s on IFS trucks with no problem, others have snapped CV joints with 35" tires multiple times.

EVERY TIME I see a failed CV while out hunting or fishing, it's ALWAYS on 6" or more of lift and 35" or larger tires. It's why I stayed at 4" of lift AND 35" tires AND chose a suspension lift kit that replaced many components with larger, beefier ones AND kept the CVs at stock angles...

 

so should I stick to 33's then with an IFS? It's a TRX4, it's supposed to have a "beefier" suspension but I'm not sure if it's still IFS or not or even which components are supposedly better.

So I should stick with a 4" suspension lift for long-lasting performance and if I wanted to go higher, a body lift? This would look funny with 33's I would think. I don't plan to do any offroading, this is going to be a daily commuter/advertisement for our business.

I have given up on the 37's now as I'm learning more.

 

Hey bro there is a set of 4.56 gears and install kit for under 600 shipped for front and rear for sale on Dodge talk. FYI.