GMCforum
For enthusiast of the Classic GMC Motorhome built from 1973 to 1978. A web-based mirror of the GMCnet mailing list.

Home » Public Forums » GMCnet » [GMCnet] lower steering shaft complete new replacement
Re: [GMCnet] lower steering shaft complete new replacement [message #266804 is a reply to message #266569] Wed, 26 November 2014 14:32 Go to previous messageGo to previous message
KB is currently offline  KB   United States
Messages: 1262
Registered: September 2009
Karma:
Senior Member
Keith V wrote on Sun, 23 November 2014 11:44


regarding the spline alignment, that and the next message by kerry have a good point. there will be the possibility of being off one spline, the lower shaft has 36 splines so one spline is 10 degrees, the upper 48 so thats 7.5 degrees. So worst case is youre off exactly 1/2 spline, 5 degrees on the bottom, or the upper is 3.75 degrees max.
that could be enough to be an issue maybe



I think there's an interaction between the two splines that reduce the maximum offset even more.
Eg, very worst case the lower spline is off by 5 degrees (one-half spline). Then you still have the steering wheel alignment to contend with,
which is off by a maximum of 3.75 degrees. Seems like those two would be subtractive -- ie, plus or minus 3.75 from the 5 degrees offset, for a total
absolute maximum possible misalignment of the steering wheel of 1.25 degrees when the wheels are pointed straight ahead. You could probably
get it even closer by pulling the steering wheel off of its splined fitting and moving it over one.

At least that seems like how it should work... not sure what I'm missing.
I've a suspicion the different shaft size and spline counts they chose weren't accidental.

Karen
1975 26'



 
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: [GMCnet] Log in problems.
Next Topic: Vacuum Advance
Goto Forum:
  


Current Time: Sat Jun 15 19:04:50 CDT 2024

Total time taken to generate the page: 0.01175 seconds