A YJ with an LS on Coilovers & Spidertrax Axles


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Fouledplugs

Fouledplugs

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Since the build plans have changed and I’m ditching the leaf springs for coilovers, I’m wide open as far as what front axle to run.

Originally, I was limited to a center section that had a cast in leaf pad for the front. My desire was the replicate the 78-79 Ford high pinion 60. But since ditching the leafs, I’ve been window shopping.
 
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Fouledplugs

Fouledplugs

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The only reason I have yet to pull the trigger on a front Spidertrax axle with their ultimate steering inner and outer knuckles is the bearing; it isnt sealed.

Being that I wheel down south, water and mud are precedent. I think I would rather have a sealed bearing, but haven't completely ruled out a full Spidertrax front axle build.

So my options have expanded to say the least.

East Coast Gear Supply builds bare tube high pinion 60’s that use the Dana Ultimate 60 center section and I really like the genuine engineered Dana/Spicer stuff.


The Dana Ultimate 60 uses 3.5” tubes and utilizes a true 10” gear from the Dana Super 60 that they designed and engineered for the Ford Super Duty.

In 2018 Dana developed and prototyped a 1550 sized kingpin knuckle for their aftermarket 60’s. This year at Easter Jeep Safari 2021, Dana finally released their 1550 (SPL-70) kingpin knuckles for the Ultimate 60 to the masses. But it’s not my cup of tea. (Lacks shear steering option) I am glad to see another 1550 kingpin offering hit the market though.

So my options are:

  • Spidertrax 3.5” chromoly bare tube front axle housing with Reid’s Super Kingpin inners and outers. (Supports 40 spline outers that use a massive 2” axle shaft and 05+ Super Duty Unit Bearings.
  • Spidertrax 3.5” chromoly bare tube axle with Spidertrax Ultimate inner and outer knuckles with their chromoly gussets and skids.
  • ECGS Dana Ultimate 60 center section with 3.5” bare tubes and Reid Super Kingpin inner and outer knuckles.


The Dana Ultimate 60 Center Section:
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jeepjoe43

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The only reason I have yet to pull the trigger on a front Spidertrax axle with their ultimate steering inner and outer knuckles is the bearing; it isnt sealed.

Being that I wheel down south, water and mud are precedent. I think I would rather have a sealed bearing, but haven't completely ruled out a full Spidertrax front axle build.

So my options have expanded to say the least.

East Coast Gear Supply builds bare tube high pinion 60’s that use the Dana Ultimate 60 center section and I really like the genuine engineered Dana/Spicer stuff.


The Dana Ultimate 60 uses 3.5” or 4” tubes and utilizes a true 10” gear from the Dana Super 60 that they designed and engineered for the Ford Super Duty.

In 2018 Dana developed and prototyped a 1550 sized kingpin knuckle for their aftermarket 60’s. This year at Easter Jeep Safari 2021, Dana finally released their 1550 (SPL-70) kingpin knuckles for the Ultimate 60 to the masses. But it’s not my cup of tea. (Lacks shear steering option) I am glad to see another 1550 kingpin offering hit the market though.

So my options are:

  • Spidertrax 3.5” chromoly bare tube front axle housing with Reid’s Super Kingpin inners and outers. (Supports 40 spline outers that use a massive 2” axle shaft and 05+ Super Duty Unit Bearings.
  • Spidertrax 3.5” chromoly bare tube axle with Spidertrax Ultimate inner and outer knuckles with their chromoly gussets and skids.
  • ECGS Dana Ultimate 60 center section with 4” bare tubes and Reid Super Kingpin inner and outer knuckles.


The Dana Ultimate 60 Center Section:
View attachment 117404
View attachment 117405
View attachment 117406
View attachment 117407
View attachment 117408

View attachment 117409
That's nice stuff...Color me jealous.
Even though I don't need one.
 
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Fouledplugs

Fouledplugs

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Messages
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Location
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Atlas 4.3 ordered. Should take about 15 weeks....

PRP Comp Elite front seats ordered. Estimated shipping in 7 weeks...
4C8A1E45-7B33-4972-84D3-DE6CEA928E55.jpeg


I’ve got plenty to do in the mean time.
 
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Fouledplugs

Fouledplugs

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Front axle decision has been made to no surprise; going Spidertrax w/ kingpin knuckles.

Build plan is as follows:
  • Full-Width 69.5” WMS, Driver Drop, Long Driver Side Tube
  • 3.5” Spidertrax Pro Series Housing (Heat-Treated Chromoly Tubes)
  • Reid Super Kingpin Inner Knuckles (C’s)
  • Reid Super Kingpin Steering Knuckles
  • High Steer Arms Drilled for Double-Shear
  • Ford Superduty 05+ Timken Unit Bearings, Re-drilled 8x6.5
  • Ford SuperDuty OEM Brake Calipers
  • Ford Superduty OEM Rotors Re-Drilled 8x6.5
Waiting on Spidertrax to get back to me, I only asked that they tig weld a set of 4130 skid plates on the housing before shipping it out to me.

Reid Steering Knuckle Comparisons:
Left to Right:
Dana 44 vs Dana KP 60 vs Super Kingpin 60
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Fouledplugs

Fouledplugs

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As written, my axle housing will ship from Spidertrax on 5/17/21. The folks at Spidertrax will try to get me in while between some bigger jobs to have the 4130 chromoly skids welded onto the housing.

Once I get it in hand, I’ll get it to my axle builder and hopefully he and his team can knock it out quickly.

Once the builder has the housing, he will be cutting down the axle tubes to match my specs, pressing and welding the inner knuckles, and assembling the outer steering knuckles. He will also be drilling the high steer arms to match the steering arms on the knuckle. From there I can use it for mock up.
 
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jeepjoe43

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As written, my axle housing will ship from Spidertrax on 5/17/21. The folks at Spidertrax will try to get me in while between some bigger jobs to have the 4130 chromoly skids welded onto the housing.

Once I get it in hand, I’ll get it to my axle builder and hopefully he and his team can knock it out quickly.

Once the builder has the housing, he will be cutting down the axle tubes to match my specs, pressing and welding the inner knuckles, and assembling the outer steering knuckles. He will also be drilling the high steer arms to match the steering arms on the knuckle. From there I can use it for mock up.
Wow! That's stuff that would withstand an IED!
 
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jeepjoe43

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Thanks.
Hoping the parts will hold up well for 40’s, the LS, the 3.8 Atlas, and the trails around the south.
I'm thinking you'll be just fine.
In fact, I think once you get this mochine together, you'll be ready for some serious Zonie rock!
Was starting wonder if you were building a JY or rock bouncer. LOL!
 
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Fouledplugs

Fouledplugs

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I'm thinking you'll be just fine.
In fact, I think once you get this mochine together, you'll be ready for some serious Zonie rock!
Was starting wonder if you were building a JY or rock bouncer. LOL!
Well I’m also building with the idea and plan of spending more time wheeling than working on it.

It may take a little longer, build wise, but should be worth it.

Plus, I want to be able to hit any trail that is built for 40’s without worries.
 
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jeepjoe43

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Well I’m also building with the idea and plan of spending more time wheeling than working on it.

It may take a little longer, build wise, but should be worth it.

Plus, I want to be able to hit any trail that is built for 40’s without worries.
I'm hip on wheeling it rather than working on it, that's my plan too, albeit a smaller scale.
But I think you'll have it, I'm guessing you see a lot of mud.
Never wheeled in the South, but your build kind of sounds like my buddies from Norway.
And they do DEEP MUD!
 
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Fouledplugs

Fouledplugs

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I'm hip on wheeling it rather than working on it, that's my plan too, albeit a smaller scale.
But I think you'll have it, I'm guessing you see a lot of mud.
Never wheeled in the South, but your build kind of sounds like my buddies from Norway.
And they do DEEP MUD!
I hate mud. Although, mud comes with the territory when wheeling in the south east.

I’ll mainly be looking for rocks
 
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jeepjoe43

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I hate mud. Although, mud comes with the territory when wheeling in the south east.

I’ll mainly be looking for rocks
Here in the SW you don't need to look for rocks, they'll find you.
As you say, it comes with the territory, but we do have some of the best!
Fortunately not much mud, I'm not a fan either.
During the summer our soil is like 6" of concrete, but add an inch or two of rain and it just turns into 4" of snot.
 
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