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JK D3X25R1 Retro chassis


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#1 Pablo

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Posted 27 February 2016 - 11:51 AM

I like the design of these JK X25R kits, so I built one.

 

Nothing special, built exactly like the ones they sell assembled

 

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Assembly coming soon.


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Paul Wolcott




#2 Pablo

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Posted 20 March 2016 - 12:56 PM

There are many ways to do retro front axle/wheel assemblies, but here is the way I did it on the JKX25R.

If you dislike getting acid on your shiny new chassis like I do, it's worth the extra effort.

 

First I cut the axle ends to end up with exactly 3 1/8" wheel widths with 3/32 keepers.

I custom made a pair of aluminum wheel set screw keepers by cutting the ends off used JK wheel hubs.

All 8 rotating surfaces were then faced

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Set screw keeper and wheel go on as far inboard as possible and are tightened just enough to hold them there

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Wrap the chassis up like a Gordita with only the axle end exposed and tin the very end

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Place the keeper exactly where you planned it to make 3 1/8, using a small clip to prevent it from moving inboard any further.

A dot of ATF to the inside before positioning the keeper will prevent solder from wicking in.

Personally, I find by cutting the axle ends so they end up about 5 thou inside the outer edges of the keepers makes the solder pool up nice

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Now you only have to clean the axle ends/keepers - everything else stayed clean.

Wheel screw removed, set screw keepers re-positioned, and you are in business.

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Paul Wolcott

#3 Pablo

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Posted 20 March 2016 - 02:04 PM

Twin Slick 7 spacers on both sides give enough room for a needle oiler to get in close.

PCH ball bearings were soaked in acetone, flushed with lighter fluid, soldered in, then oiled.

ARP angled 9T pinion, Parma 27T crown is balanced with a Koford Gold Billet short hollow set screw.

Axle is a Koford. JK Hawk Retro motor is broken in, tested, and ready to rock.

Clearances are IRRA® legal front and rear.

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#4 SlotStox#53

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Posted 20 March 2016 - 02:09 PM

Very nice "how to" on the front axle/wheels Pablo :good:
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#5 Pablo

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Posted 20 March 2016 - 02:51 PM

Thanks, Paul, there are a million ways to do that but that was today's method :D

Parma standard thickness flag was blueprinted using all the right tools.

Koford nut and Koford flag spacers - one above, one below

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Paul Wolcott

#6 Pablo

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Posted 20 March 2016 - 05:35 PM

It's done, and it's for sale. If interested, send me a PM.

Currently has no body, no clips or pins, no rear wheels.

Willing to suit it to buyer's desires.

 

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#7 Pablo

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Posted 21 March 2016 - 06:11 PM

Sold.


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