Author Topic: New DT rocker spindles  (Read 3005 times)

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Offline Doug

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New DT rocker spindles
« on: 12 Oct 2013 at 18:50 »
For sale, new Dirt Track rocker spindles (part #6735-2).



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Including 5/16-25 nut with Whitworth hex (part #711), and heavy washer (part #735-1). All machined for 4130 alloy steel and heat treated to 35HRc.

Do the ends of your old spindles look collapsed like this?


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Has the rocker arm sleeve been spinning on the spindle and wearing it down like this, or worse?


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Well now you can finally replace it! Fully interchangeable with the original, including the special 5/16-25 Douglas threads.

The design has been altered slightly to leave a small bridge across the slot to prevent it from collapsing when the nut for the grease/oil reservoir is installed and inevitable over-tightened. It can be seen here:


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This does not interfere with installing the oiling wicks, but the bridge can be removed with a file if so desired to be just like the original. The spindle is drilled axially and a small cross hole meters the liquefied grease to and undercut and thence the rocker spindle sleeve, lubricating the rocker arms. For short joy rides it is not recommended to use a high temperature grease, as it takes too long to get fluid and provide the requisite lubrication. A heavy oil is better, albeit more messy.



Cost is $50US per spindle, including the nut and washer. Packing, postage, and insurance at cost.

D. Kephart
Glen Mills, PA, USA



[price increase  -Doug, 25Feb15]
[update links. 29Apr19 -Doug]
« Last Edit: 29 Apr 2019 at 12:27 by Doug »