rustler steering radius and wheel hex's?

[Suburban_Hooligan]

idk if I'm just used to RC10's that turn on a dime or if I'm not remembering what the rustler was like 25 years ago, but this thing feels like a train and the wheels are scrubbing the suspension arms at full lock.
got to looking at it and noticed how much thread is showing on the front axle (see pic below) i measured it, it's 1/8" of thread showing. so i measured the width of the STRC hex (see second pic), then cause it was handy measured a stock plastic hex for my HPI Savage XS and it's wider (but won't fit on the axle cause the hole is to small. see third pic). seems like if i had the wider HPI hex id have more clearance for the wheels to turn. I'm not used to dealing with wheel hexes so... can i get a wider hex? is my STRC hex narrower than normal? what's the width of a stock rustler front wheel hex? any other ideas? i can't shim the hex out, already looked into/tried that. not willing to drill out the HPI hex ether, need that for the XS.

just as a reference this is the rear and this is what I'm used to seeing. only a couple threads sticking out of the nut.

 

[jojobeans]

I run slash 2wd arms in the rear and Associated offset wheels all the way around on my rustler. Zero rubbing at full lock and the slash arms narrow the rear end so you can run the same offset all the way around.

Don't know how much that will help, but I would assume the rubbing has something to do with the offset of the wheels.

 

[RustyUs]

What wheels are you using?

 

[Suburban_Hooligan]

my truck has RPM everything. and its got the wide front arm kit which i was lead to believe let you use the same wheels front and rear. with the wheels on, the front and rear track width is the same. I'm running these JConcepts wheels https://www.amainhobbies.com/jconcepts-12mm-hex-2.2-super-dish-rear-wheel-white-4-jco3416w/p1360908

 

[RustyUs]

my truck has RPM everything. and its got the wide front arm kit which i was lead to believe let you use the same wheels front and rear. with the wheels on, the front and rear track width is the same. I'm running these JConcepts wheels https://www.amainhobbies.com/jconcepts-12mm-hex-2.2-super-dish-rear-wheel-white-4-jco3416w/p1360908

From RPM's wide arm replacement instructions:

So, you are supposed to use "front" wheels all around?

 

[Suburban_Hooligan]

great, dyslexia strikes again, looks like i needed these instead https://www.amainhobbies.com/jconcepts-12mm-hex-2.2-super-dish-front-wheel-white-4-jco3417w/p1360910

 

[Suburban_Hooligan]

just out of curiosity, anyone know the difference in offset between front and rear wheels?

 

[jojobeans]

just out of curiosity, anyone know the difference in offset between front and rear wheels?

Slash rear arms are just shy of a 1/2 inch shorter than rustler rear arms. So I’d wager to bet the difference in offset isn’t far off from there.

I have some stock rustler wheels I can measure if you don’t have your stockers anymore to get an actual measurement when I get off work.

 

[Suburban_Hooligan]

i never had stockers, this truck is built entirely from scratch using as many aftermarket parts as possible. that's why i have confusion, i don't normally mess with traxxas stuff and i had nothing to go off of.

 

[Suburban_Hooligan]

Slash rear arms are just shy of a 1/2 inch shorter than rustler rear arms. So I’d wager to bet the difference in offset isn’t far off from there.

I have some stock rustler wheels I can measure if you don’t have your stockers anymore to get an actual measurement when I get off work.

before i spend money, can you measure the offset of your stock wheels? it would be helpful piece of mind, thanks

 

[Chubaka]

just out of curiosity, anyone know the difference in offset between front and rear wheels?

Front offset are half inch out more to compensate for the shorter front arms. So front wheels will give 1 inch more track width. Rears will be 1 inch less track width then the front offsets.

On my stampede I run fronts on all corners. I spin out alot more instead of roll.

 

[Suburban_Hooligan]

cool, thanks. ill go ahead and grab another set of wheels and tires for the front. ill just run the current off set in the rear. so it looks like my generic stadium truck is going to look like a pre runner for a while. that kinda sounds cool actually...

 

[jojobeans]

Front offset are half inch out more to compensate for the shorter front arms. So front wheels will give 1 inch more track width. Rears will be 1 inch less track width then the front offsets.

On my stampede I run fronts on all corners. I spin out alot more instead of roll.

Beat me to it! Thank you, I completely forgot about this thread until hooligan quoted my post

 

[Suburban_Hooligan]

front wheels acquired, tires acquired. fitment is now good, no more rubbing. while the front is wider than the back, its not super noticeable. so i guess i have 2 sets of rear wheels/tires for it. considering i seem to go through rears 3 times faster than fronts I'm not going to complain ...very loudly...
now to install the aluminum servo horn and get the steering throw dialed.

 

[Suburban_Hooligan]

got the turning radius good. at least to the right. radio EPA's set to 120% in both directions so I'm sure something is in need of adjustment. and it's turning right better than left. turning radius is about 10 inches wider to the left. this is the part i hate. got a feeling I'm going to have to study a manual.

and the aluminum servo horn i got is to long. doesn't fit under the upper part of the chassis. anyone know an aluminum 25t servo horn that'll fit?

not sure I'm happy with the servo ether. currently iv got a Reedy 2513MG in there. it seems to have the torque but I'm not sold on the speed.

 

[RustyUs]

got the turning radius good. at least to the right. radio EPA's set to 120% in both directions so I'm sure something is in need of adjustment. and it's turning right better than left. turning radius is about 10 inches wider to the left. this is the part i hate. got a feeling I'm going to have to study a manual.

and the aluminum servo horn i got is to long. doesn't fit under the upper part of the chassis. anyone know an aluminum 25t servo horn that'll fit?

not sure I'm happy with the servo ether. currently iv got a Reedy 2513MG in there. it seems to have the torque but I'm not sold on the speed.

Measure and go shopping. Top mounted pivot, bottom mounted pivot, high offset, low offset... I've spent hours searching for correct servo horns that will work for certain RCs. The Rustler's layout doesn't look too menacing. You got a mini turnbuckle/steering drag link to work with which should work in your favor in getting equal left/right steering throw.

 

[Suburban_Hooligan]

issue is i don't have a stock horn nor am i willing to buy one. so i would need that measurement.
i also don't know the length of the rod center of rod end to center of rod end. right now the length of the rod would probably be the most help in getting equal left/right travel.