another fork question

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another fork question

Postby Bubbalowe » Sun Dec 09, 2018 9:48 am

What years do the lower slider valve retainer holes represent? There are 2 different sizes, 3/8 and 5/16. Is only difference in sliders the size?
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Re: another fork question

Postby JerrryR » Sun Dec 09, 2018 8:02 pm

Hi Bubbalowe,
If I understand your question correctly, 1952 through 1967 had the small hole on the bottom of the slider. 1968 through 1972 had a larger hole on the bottom of the slider. the 68-69 sliders are different from the 1970 slider but 68-70 use the same internal parts. 1971-72 sliders look different and have different internals.

-52 Slider, 1.jpg
-52 Slider, 1.jpg (257.1 KiB) Viewed 8334 times


1968-69 only slider 1.jpg
1968-69 only slider 1.jpg (180.97 KiB) Viewed 8334 times


1970 only slider 1.jpg
1970 only slider 1.jpg (172.33 KiB) Viewed 8334 times
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Re: another fork question

Postby JerrryR » Sun Dec 09, 2018 8:04 pm

71-72 Sliders.JPG
71-72 Sliders.JPG (101.04 KiB) Viewed 8333 times
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Re: another fork question

Postby Bubbalowe » Sun Dec 09, 2018 9:14 pm

Thanks Jerry. Sliders being shipped back Monday after bushing install, will get picture because they are unlike pictured, have both fore and aft lower fender ears, upper fender mounts and backing plate lug with no cable tube mount. Believe these are actual K but saw another set with 3/8" hole thru bottom where damper is fastened instead of 5/16. As mentioned in other posts early style dampers are very rare and no one has re-popped so it's a challenge. The new tubes being made are "universal" fitting all from 52-72 so was hoping to use new late style dampers/ tubes with early sliders.
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Re: another fork question

Postby EKHKHK56 » Mon Dec 10, 2018 4:53 am

The 3/8" hole is for the larger later style. Or was drilled for later rods. The 5/16" could snap after constant topping on rebound. Universal Tubes may be too long. Frank's are the BEST. Built from Center Cut Tubing only, etc. No inconsistencies in wall thickness, in or out.
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