Help with tire size dropped axle Sub/Truck
 

I currently have 16 5.50's Coker TUBE radials that look like the bias ply's and am wanting to go with a wider wheel/tire combo for towing. I have dropped my rig with Sids droppedaxles.com set up 4+ inches. What size wheel/tire works without hitting tie rods etc. Would like to go as wide and as tall as I can in the front and rear, but concearned about front hitting the steer components. What works?
Thanks

Re: Help with tire size dropped axle Sub/Truck
 

Subscribed. :-)

Re: Help with tire size dropped axle Sub/Truck
 

Is tire width and non power steering also an issue?

Re: Help with tire size dropped axle Sub/Truck
 

From what i'm finding, bagged trucks with power racks don't have the interference that the static dropped axle trucks run into with tie rods.

Re: Help with tire size dropped axle Sub/Truck
 

And it is not apples to apples between you and either as I am running a disk brake kit which moves the tires out a bit.

Re: Help with tire size dropped axle Sub/Truck
 

Good point. I will probobly do some forward thinking and get a wheel tire combo that will work with disc too. Anyone out there with a drop axle truck running disc and have a pic of their wheels and deminsions?
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Re: Help with tire size dropped axle Sub/Truck
 

I pmed u back. 6.70-15 on 15x5 . (ifs)

http://i92.photobucket.com/albums/l2...FB4AFC2CFD.jpg
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Re: Help with tire size dropped axle Sub/Truck
 

Those look great! But I think the ifs with a rack will be different than solid and the interference of tie rods. I called Sid tonight and talked with him about feedback from his customers. He never gets the deminsions on finished projects. Anyone else out there bump?

Re: Help with tire size dropped axle Sub/Truck
 

PM sent

Re: Help with tire size dropped axle Sub/Truck
 

Same situation, glad someone brought it up.

@Coach: I am also running the disc brake setup, how much do they move the wheels out by any chance?

Re: Help with tire size dropped axle Sub/Truck
 

I am not exactly sure.

Re: Help with tire size dropped axle Sub/Truck
 

3/8" is what I hear and without proper offset ( newer style 70's and up wheels) you have to run a spacer 1/4" to clear the calipers.

Re: Help with tire size dropped axle Sub/Truck
 

On my '49 pickup I have a SIDS 3" dropped axle. I'm running 215/70/15 big ta
On 15x6 rally wheels. I have no clearance issues with the fender lip or with the tie rod ends. The rod ends are mounted under the arms. I do have drum brakes with a 1" spacer and roller bearings.
Hope this helps.
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Re: Help with tire size dropped axle Sub/Truck
 

ok, the tires are BFG TA's - typo

Re: Help with tire size dropped axle Sub/Truck
 

Looks like 15x6 3.5" Backspace for the front wrapped in a 215/70/15 26.9 tall, 5.4 tread width , 8.7 section width (on a 6" rim with 3.5 bs should clear tie rods). For rears 15x8 4.0 bs wrapped in a 235/70/15 27.7 tall, 7.5 tread width, 9.6 section width will stuff, look fat , have good sidewall and keep as close to the 28" height I currently have which is perfect for the 700r4 and the 3:73's.
Tires are Cooper for these deminsions, BFG's are awsome tires, but have a wider/shorter measurement as do several other brands. It seeems the same tire size in different brands have all different measurements. I used a skinnier front in the Cooper to ease the lack of powersteering. I didn't want to add a wider tire and increase the effort as my wife drives the Burb at times too.

Any thoughts?

Re: Help with tire size dropped axle Sub/Truck
 

That size seems pretty common on most build threads I have read.

The non power steering issue is one I am curious to hear.

Re: Help with tire size dropped axle Sub/Truck
 

I don't have power steering yet and don't have any problems even with a smaller steering wheel. It can be a bear to parallel park.
Also I have 30x9.50/15's on the back on 8" rims
If you want, I can measure the distance from the inside of the rim to the tie rod end
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Re: Help with tire size dropped axle Sub/Truck
 

That would be awsome, thank you. What is the 1" spacer you speak of? Is it a wheel to drum spacer? Could you measure the backspace of your fronts too?
Thanks

Re: Help with tire size dropped axle Sub/Truck
 

Ok, it won't be tonight but by this weekend you will have the info. I still haven't figured out how to post pictures.
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Re: Help with tire size dropped axle Sub/Truck
 

Newfisher: here's the info I promised:
The wheels are 15 x 7.5 Chevy rally wheels with 3.5" backspace.
There is a 1" adapter / spacer between the passanger car brake drum & the wheel.
This gives me 2.5" clearance between the tie rod end & the rim. It also gives me 1.5" clearance between the tie rod end & the inside sidewall of the tire.
With the 3" dropped axle I have 4.5" clearance between the bottom of the axle & the roadway.
Hope all this helps.

Re: Help with tire size dropped axle Sub/Truck
 

Nvrdone, I have questions :)
What size tire are you running? If you didn't have the 1" spacer, you would still have clearance. Not a lot, but useable unless you had a flat and scrub angle would play about the same time the 1/2" tire to tie rod started to mix it up right? Can you post some pics?I like the thought of a 7.5 front wheel, it must be a reversed hoop to get the 3.5bs? How is the steering effort with the wide wheel?
Thanks
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Re: Help with tire size dropped axle Sub/Truck
 

Newfisher: I have 215/70r15 BFG TA's. The rim is 15x7 not 7.5. It is a stock Corvette rally wheel bought from a Chevy dealer many years ago, so I don't know if it is a reverse wheel. I guess if I didn't have the spacer / adapter there could be a possible problem if I had a blow out. I only have them because it widens the track & fills up the fender well. I don't have any clearance issues with the fender. The seteering effort is not bad even with a small steering wheel, but it can be a pain to parellel park.
One of these days I will figure out how to post pictures, but right now I'm not that smart.
Fyi, the tie rod & ends were purchased from Classic Parts. Tie rod is #76-211 & ends are 76-005. For the drag link, I had a local Jeep off road shop make it up. The ends are a Napa # 920535 & 921317.
Hope all this helps.

Re: Help with tire size dropped axle Sub/Truck
 

Thanks!
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Re: Help with tire size dropped axle Sub/Truck
 

Backspacing lesson.

6" wide rim with zero offset. 3.5" backspace. Means 3.5" of the rim is behind mounting plane, 2.5" in the front (towards outside of fender).

Correct?

Re: Help with tire size dropped axle Sub/Truck
 

I am buying rims the same spec.....and am worried about rubbing the fender at full lock with 215/75-15's.