i just put $$$ down on my new............... dynatrac prorock highscrew 60's :D they should be here the first week of august or so....

i have to hash a few things out as far as degree, yokes (jess steered me to 1410) goin 538 ratio.... anywho what width would you get? and would you get both front and rear the same width?

Width depends on what its goin under! If it was my TJ id get 61" front and 60" rear (1 inch wider in the front fro tracking, not reall a big deal though). I might go with 64" and 63"...just depends.

my d60 and 14bolt are at 63" and i run 15x10" rims with rockstomper style beadlocks so my actual rim width is more like 11.5". the backspacing on them is 3.5 and i run 42x15 swampers. i like the width. wide but not too wide in my op. anyway here is a pic so you can see how wide it is.

i was thinkin on the lines of 65 front and 63 rear.... but another friend says go 67 67 i dunno..... got to figure out by next week

am i figuring this right.... its late 67 wms to wms with 10 inch rims at 3.5 backspacing puts me at roughly 80 inches wide? thats not counting the bulge of the tire......

all I got to say is your MOM :flipoff2: :D what kind of credit card did you sign up for :D

hehe that'll be sic man, I wish I was as fortunate. good luck

*cough* I hope you break them *cough* :D

Bryan Hamilton is 67" front and 62" rear, it works really well. I think shupe is 65" F & 62" R. We ran 65" F & 64"R with a few problems swinging the rear through gates (106" wheelbase is just a hair long also and contributes in our case)

I would lean to 65-67" front and 62-64" rear. It's easier to get the rear to follow through the gates when it's a hair narrower than the front.

My personal choice would be 66"F & 62"R since I know this will be your competition rig.

I will be running a 67" wide 60 front, 66" wide 60 rear. I would prefer to go more lke 64"/63" wide, but I will be making the difference up in wheel width.

Here's a simple page with an Excel spread sheet to calculate overall width.
http://www.tennessee4x4.com/toyota/overall_width_calculator.htm

For example, I will be running 67" wide axle, beadlocked stock 16.5" rims at 8.5" wide and 4.5" backspacing, with a 15" wide 42" tire. That gets me an overall width of 81.5"

In contrast, punching in the number from High5's setup he is actually 1" wider at 82.5", even though his axles are 4" more narrow :p


Play with the numbers and see what I mean... :cool2:

That's a pretty cool calculator, Dave. Thanks!

If your building for competition, I'd follow Shupe's lead.


How wide are they setting the gates in Erocc. We set the gates, min. for classification....Mod stock 100".....Pro/umlimited...110"
knowing this will help in the decission.


Rich

Originally posted by Jeepskickass
That's a pretty cool calculator, Dave. Thanks!

Wish I knew how to make it a Java applet though :(


Regardless, it lets you see that axle width alone is not the only factor - as shown when comparing my setup to High5's...

BTW - for comparison, I used to run the following setup: 56.5" front axle, 10" MRT beadlocks w. 3.5" Backspacing, and 16" wide boggers - which have me an overall width of 75.5" up front and the 58.5" wide rear axle made me 77.5" wide in the rear.

If I were to take my 60's and narrow them to 64", using the same wheel/tire combo I mentioned in my earlier post I would only be ONE inch wider than the Toyota setup...


I guess the biggest thing this shows is just how much wheel width, tire width, and wheel backspacing play in the overall width of a vehicle - much more so than the axle width....

Originally posted by Big Rich
If your building for competition, I'd follow Shupe's lead.


How wide are they setting the gates in Erocc. Pro/umlimited...110"
knowing this will help in the decission.


Rich

I'm pretty sure they are right there with you at around 110" minimum for unlimited. As of now Legends (stock-mod) runs the same courses.

Originally posted by bigdude
shupe is 65" F & 62" R.

Keep in mind that Shupe is running 5" BS rims, so he is a lot narrower than his axle width would lead you to believe!

Originally posted by Lance


Keep in mind that Shupe is running 5" BS rims, so he is a lot narrower than his axle width would lead you to believe!

Ah yes, and it is also BAJG plan to run 17x10 w/ 5" BS. He mentioned that in a previous post.

We ran 1/2 ton brakes on our HP60s so the 15x8 champions have 4"BS on our 65" wide 60s. It's a good overall width for maneuverabilty and stability.

Don't forget to add up the width of the "training wheels" too ya fawker! :flipoff2: :D :D
Seriously I'd consider about 67" front and 63" rear, or about the same as Shupe is running. The rear of his rig trailed nicely behind the front. Looked like one of the best combos to me, and I recall seeing some really bad ones.
Anyways, congrats on your Pro Rocks dude.
Oh and the next time you have money burning a hole in your pocket............share the wealth. LOL.

I am running 63 inches in the front and 60 inches in the rear. This setup seems to work good, as my heep can just about turn on it length. Also, I can go over something with the front and squeeze by it with the rear, but the rig is stable.

Joe

What would be the advantage of wide axle, lots of backspacing vs narrow axle/ normal backspacing, besides the arc the rim will travel on when turned.....

Originally posted by LAME
besides the arc the rim will travel on when turned.....
That's a huge difference when you're in tight quarters skirting around a gate by 1/2" or so. You don't want to have to alot for the tire swinging in a large arc, it's a lot nicer if it just pivots in a smaller one. Big advantage in my mind.

Better balance and weight distribution on the tire also. it may seem minimal but I believe it helps especially when articulating to have the WMS in the center of the tire.

FWIW, I have 69 front and 65 rear, and I like it a lot.

Originally posted by Keith Strong
FWIW, I have 69 front and 65 rear, and I like it a lot.

Really??? You don't say. What's the opinion on this.

I've been debating swapping hubs on my 14 bolt to take it from 67" to 63". I'd then be 69" front and 63" rear. I think it would track corners nicely but might be a little too much of a difference. for the stability (WB = 100")

Originally posted by Lance


Keep in mind that Shupe is running 5" BS rims, so he is a lot narrower than his axle width would lead you to believe!


yeap, but he runnin at least an inch spacer on each side.... so if he was 65 front, he now is 67 front and 5 inch backspace..... that should be close to where ill be.... im pretty sure ill go a few inches narrow in the rear......

Originally posted by Sillyneck
all I got to say is your MOM :flipoff2: :D what kind of credit card did you sign up for :D

hehe that'll be sic man, I wish I was as fortunate. good luck

*cough* I hope you break them *cough* :D


no credit card, just sold all my other junk... :D i will probably break them eventually..... i can break anything if i put my mind to it :D

so 67front 64 rear with 5" bs should put in the same ballpark as shupe without spacers....... sounding like a plan.....

Go a little narrower than 64" in the rear. I just think it's about 1" too wide on each side. I've had to watch too hard as we skirt around cones.

Like I said Bryan Hamilton (tube cruiser buggy, blue and silver) is 67" 62" with BS setting the wms dead center of the rim

Why would you buy a Dynarack HP FRONT axle and have it made 67" wide?

Why not just rebuild a STOCK Ford HP axle, shave the pumpkin, add High Steer and save yourself 4-5,000 dollars?

I can understand if you had a complete pass side drop drivetrain, but didn't you just order your Atlas? Make it a Driver drop (I think it already is) and run full width and custom 8 lug wheels.

You will come out WAY ahead of the game.....

As for the rear, I run a HP D60 and if you can get away with the driveline andgle, you should get a standard rotation D60. They are MUCh stronger, as you know.

I would have a Sunray 35 spline 9" in the rear of mine if I had the driveline angle to do it.

Originally posted by wngrog
Why would you buy a Dynarack HP FRONT axle and have it made 67" wide?

Why not just rebuild a STOCK Ford HP axle, shave the pumpkin, add High Steer and save yourself 4-5,000 dollars?

I can understand if you had a complete pass side drop drivetrain, but didn't you just order your Atlas? Make it a Driver drop (I think it already is) and run full width and custom 8 lug wheels.

You will come out WAY ahead of the game.....

As for the rear, I run a HP D60 and if you can get away with the driveline andgle, you should get a standard rotation D60. They are MUCh stronger, as you know.

I would have a Sunray 35 spline 9" in the rear of mine if I had the driveline angle to do it.


after researching I feel the pro rock housing is stronger than a stock hp 60........ ohh and i can save 4 to 5000 dollars if i barely payed that.... :D


youll come out way ahead of the game...... i had 2 hp 60's ready to build..... by the time i added everything up i was ahead of the "game" but not by too damned much.


yeap i know regular 60's are stronger, but it just wont due for what im lookin for....


i payed enough for these axles but not as much as one would think..... actually there prices are much better than most places...

Originally posted by badassjeepguy

i payed enough for these axles but not as much as one would think..... actually there prices are much better than most places...

Especially when you're getting them bare and setting up your own brackets and links:)

Originally posted by bigdude


Especially when you're getting them bare and setting up your own brackets and links:)


;)

Originally posted by DRM
Wish I knew how to make it a Java applet though :(

http://p4w.uuuuuudotcom.com/drm.html

I'm 64" and 63"... It works for me.

Originally posted by Daver


http://p4w.uuuuuudotcom.com/drm.html



YOU ROCK!!!!!!!!!!!!!!!

Now how the heck do I get it on my site? :confused: (FrontPage user here - sorry :( )

Originally posted by DRM




YOU ROCK!!!!!!!!!!!!!!!

Now how the heck do I get it on my site? :confused: (FrontPage user here - sorry :( )

Cool link. Only bummer is it won't let you calculate over a 9" wheel. Not like it's hard to add it up or anything but..... :D

Originally posted by Welby


Cool link. Only bummer is it won't let you calculate over a 9" wheel. Not like it's hard to add it up or anything but..... :D

really? hmmm..... May have to change that....

come awwwn i need more opinions...... got to verify all specs on my tech sheet they are sending me....

Originally posted by DRM
In contrast, punching in the number from High5's setup he is actually 1" wider at 82.5", even though his axles are 4" more narrow

that is about right

that calculator is cool.......... according to it, if i go 67 wms to wms 5 " BS 8 inch rim with a 12.5 tire ill be at 77.5 front and with wms wms for the rear at 64 ill be at 74.5 sounds about what ill want

just under full width would be perfect, High5 is yours full width?

Originally posted by Jeepmangled87
just under full width would be perfect, High5 is yours full width?

Do you even have a CLUE what you are talking about? Obviously not... :shaking:

1. READ his post above
2. "Full Width" is NOT some optoin that came on a sticker, and means SQUAT since "Full Width" could be any variety of widths depending on the make, model, and even trim level of any number of vehicles....

Originally posted by Jeepmangled87
just under full width would be perfect, High5 is yours full width?

well my rear is a "full width" 14bolt from a cab and chassis dually. they are only 63" wide. i then narrowed a "full width" dana60 (which was 69" wide) to match.

FWIW, I have 69 front and 65 rear, and I like it a lot. \
Me to all you that said i would be to wide, and this and that. suck it FULL WIDTH is the way to go.

Originally posted by bigblackjeep

Me to all you that said i would be to wide, and this and that. suck it FULL WIDTH is the way to go.

:rolleyes:

Not for a competiton vehicle, which is what he is building with those "prorock" 60s.

65 and 63 is what i have decided upon, i think this will be just right..... i can play with offset or spacers if i need different...