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Re: [GMCnet] lower steering shaft complete new replacement [message #265654 is a reply to message #265633]

Sat, 08 November 2014 13:37

Messages: 1262
Registered: September 2009

Karma:

Senior Member

JohnL455 wrote on Sat, 08 November 2014 06:49

My assumption was always that the shaft was an addaptatiin of an off the shelf Spicer truck part and still available. My concern is that in the video the upper joint appears to be a U joint and not a CV. That would provide non linear speed transmission from the wheel to the box. That could provide a wierd non linear driving experience.

Interesting point. My current theory is that they used a CV joint at the top because it can handle bigger angles than most u-joints, so could apply to more vehicles. I think the non-linear u-joint response you mention helps explain why it's so critical to get the steering shaft aligned correctly to the center of the steering box.

Two u-joints, phased correctly, mostly counteract each other and act more like a CV joint.
I wonder if having a u-joint at the top, phased with the lower joint, would help counteract the non-linearity of the lower u-joint?

If we added a third u-joint (a double at the top, a single at the bottom), we'd have to add an intermediate support,
which adds more complexity than I'd want to deal with.

just thinking out loud...

Karen
1975 26'

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[Message index]

		[GMCnet] lower steering shaft complete new replacement By: KB on Sun, 02 November 2014 17:45
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Henderson on Sun, 02 November 2014 18:52
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sun, 02 November 2014 19:53
		Re: [GMCnet] lower steering shaft complete new replacement By: midlf on Sun, 02 November 2014 20:23
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sun, 02 November 2014 21:27
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Sun, 02 November 2014 20:20
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sun, 02 November 2014 21:32
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Sun, 02 November 2014 22:09
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Henderson on Sun, 02 November 2014 23:06
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Sun, 02 November 2014 21:37
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Sun, 02 November 2014 22:04
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Mon, 03 November 2014 01:04
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Mon, 03 November 2014 08:11
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Mon, 03 November 2014 10:46
		Re: [GMCnet] lower steering shaft complete new replacement By: midlf on Mon, 03 November 2014 12:12
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Mon, 03 November 2014 14:40
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Mon, 03 November 2014 19:27
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Tue, 04 November 2014 00:31
		Re: [GMCnet] lower steering shaft complete new replacement By: Jim at the Co-op on Tue, 04 November 2014 06:26
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Tue, 04 November 2014 11:41
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Tue, 04 November 2014 13:49
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Mon, 03 November 2014 13:10
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Mon, 03 November 2014 13:57
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Mon, 03 November 2014 16:11
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Mon, 03 November 2014 18:29
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Mon, 03 November 2014 20:59
		Re: [GMCnet] lower steering shaft complete new replacement By: bdub on Tue, 04 November 2014 11:04
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Tue, 04 November 2014 12:26
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Tue, 04 November 2014 15:55
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Tue, 04 November 2014 16:56
		Re: [GMCnet] lower steering shaft complete new replacement By: Jim at the Co-op on Thu, 06 November 2014 07:53
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Thu, 06 November 2014 12:59
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Thu, 06 November 2014 12:37
		Re: [GMCnet] lower steering shaft complete new replacement By: Jim at the Co-op on Thu, 06 November 2014 13:05
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sat, 22 November 2014 15:02
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sat, 22 November 2014 15:52
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sat, 22 November 2014 17:25
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sat, 22 November 2014 18:35
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Sat, 22 November 2014 20:30
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Sat, 22 November 2014 20:35
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sat, 22 November 2014 21:52
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Sun, 23 November 2014 13:44
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sun, 23 November 2014 19:55
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Wed, 26 November 2014 14:52
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Wed, 26 November 2014 16:20
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Wed, 26 November 2014 19:53
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Wed, 26 November 2014 14:32
		Re: [GMCnet] lower steering shaft complete new replacement By: Mr ERFisher on Sat, 22 November 2014 17:13
		Re: [GMCnet] lower steering shaft complete new replacement By: RicksGMC on Mon, 03 November 2014 07:23
		Re: [GMCnet] lower steering shaft complete new replacement By: bdub on Mon, 03 November 2014 11:58
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Mon, 03 November 2014 12:32
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Thu, 06 November 2014 13:04
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Thu, 06 November 2014 15:03
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Thu, 06 November 2014 15:08
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Thu, 06 November 2014 15:54
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Thu, 06 November 2014 16:56
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Thu, 06 November 2014 17:05
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Thu, 06 November 2014 19:22
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Fri, 07 November 2014 10:48
		Re: [GMCnet] lower steering shaft complete new replacement By: winter on Sat, 08 November 2014 08:32
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Fri, 07 November 2014 09:42
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Fri, 07 November 2014 12:34
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Fri, 07 November 2014 15:16
		Re: [GMCnet] lower steering shaft complete new replacement By: Bullitthead on Sat, 15 November 2014 22:18
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Fri, 07 November 2014 16:56
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Henderson on Sat, 08 November 2014 23:48
		Re: [GMCnet] lower steering shaft complete new replacement By: JohnL455 on Sat, 08 November 2014 08:49
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Sat, 08 November 2014 10:30
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Sun, 09 November 2014 07:22
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sat, 08 November 2014 13:37
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sat, 08 November 2014 14:05
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sat, 08 November 2014 16:15
		Re: [GMCnet] lower steering shaft complete new replacement By: Matt Colie on Sat, 08 November 2014 16:54
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sat, 08 November 2014 17:36
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Henderson on Sat, 08 November 2014 20:37
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Tue, 11 November 2014 18:36
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Sat, 08 November 2014 23:25
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Sun, 09 November 2014 07:47
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sun, 09 November 2014 11:20
		Re: [GMCnet] lower steering shaft complete new replacement By: Ken Burton on Sun, 09 November 2014 11:34
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sun, 09 November 2014 12:05
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sun, 09 November 2014 13:50
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Mon, 10 November 2014 10:58
		Re: [GMCnet] lower steering shaft complete new replacement By: Keith V on Mon, 10 November 2014 11:00
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Mon, 10 November 2014 16:12
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sat, 15 November 2014 16:39
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Sat, 22 November 2014 17:12
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sat, 22 November 2014 17:47
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Sat, 22 November 2014 18:23
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Thu, 18 December 2014 15:43
		Re: [GMCnet] lower steering shaft complete new replacement By: A Hamilto on Fri, 03 July 2015 11:36
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Fri, 03 July 2015 12:05
		Re: [GMCnet] lower steering shaft complete new replacement By: A Hamilto on Fri, 03 July 2015 12:07
		Re: [GMCnet] lower steering shaft complete new replacement By: Hal StClair on Fri, 03 July 2015 13:33
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Sun, 02 October 2016 11:44
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sun, 02 October 2016 16:52
		Re: [GMCnet] lower steering shaft complete new replacement By: Hal StClair on Sun, 02 October 2016 22:19
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Mon, 03 October 2016 11:06
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Tue, 04 October 2016 08:29
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Wed, 05 October 2016 12:21
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Wed, 05 October 2016 21:06
		Re: [GMCnet] lower steering shaft complete new replacement By: <rallymaster on Sat, 22 November 2014 22:50
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Sun, 23 November 2014 06:41
		Re: [GMCnet] lower steering shaft complete new replacement By: USAussie on Sun, 23 November 2014 17:09
		Re: [GMCnet] lower steering shaft complete new replacement By: kerry pinkerton on Fri, 03 July 2015 07:11
		Re: [GMCnet] lower steering shaft complete new replacement By: KB on Fri, 03 July 2015 12:00
		Re: [GMCnet] lower steering shaft complete new replacement By: JR Williams on Sat, 05 October 2019 01:19
		Re: [GMCnet] lower steering shaft complete new replacement By: Silvernort on Sat, 05 October 2019 08:04
		Re: [GMCnet] lower steering shaft complete new replacement By: Norisan on Sat, 05 October 2019 11:03
		Re: [GMCnet] lower steering shaft complete new replacement By: Neil Roach on Sat, 05 October 2019 13:36
		Re: [GMCnet] lower steering shaft complete new replacement By: JR Williams on Wed, 09 October 2019 17:27
		Re: [GMCnet] lower steering shaft complete new replacement By: Justin Brady on Thu, 10 October 2019 09:13
		Re: [GMCnet] lower steering shaft complete new replacement By: MikeB on Thu, 10 October 2019 10:29
		Re: [GMCnet] lower steering shaft complete new replacement By: Bill Van Vlack on Thu, 10 October 2019 16:09
		Re: [GMCnet] lower steering shaft complete new replacement By: Hal StClair on Fri, 11 October 2019 20:46

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