Author Topic: 504 Highboy  (Read 20011 times)

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machoneman

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Re: 504 Highboy
« Reply #30 on: May 10, 2016, 09:41:59 AM »
I know nothing about NP435 trannys yet I wonder if doing the old Doug Nash treatment to the sliders and gear teeth or even the face-plating of the gears would help with power shifting under load. 'Course the big assumption here is whether a top notch tranny shop has the parts and would do the machining or welding to a NP435.

http://www.libertysgears.com/faceplate-proshift.htm
« Last Edit: May 10, 2016, 01:04:58 PM by machoneman »
Bob Maag

cjshaker

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Re: 504 Highboy
« Reply #31 on: May 10, 2016, 12:19:35 PM »
Very cool, Kevin! That thing really hooks and leaves! And congratulations for being the ONLY person I've ever known who could even power shift a np435! I've ran quite a few of them over the years, and currently do in my 350. Shifting is not exactly smooth and precise to say the least, but they are tough trannys. I'd imagine the 3-4 shift is the only gears it's even possible in. Again, very cool, and congratulations on the trophys.
Doug Smith


'69 R-code Mach 1, 427 MR, 2x4, Jerico, 4.30 Locker
'70 F-350 390
'55 Ford Customline 2dr
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KMcCullah

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Re: 504 Highboy
« Reply #32 on: May 10, 2016, 02:28:20 PM »
And congratulations for being the ONLY person I've ever known who could even power shift a np435!
Thanks Doug. Don't for get about Grandpa Jesse from the Dukes of Hazzard. He stirred that NP435 like a boss.  ::)
Kevin McCullah