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 » Transmission Vacuum Modulator
Transmission Vacuum Modulator [message #97829] Mon, 30 August 2010 17:03 Go to previous message
JShot is currently offline  JShot   United States
Messages: 485
Registered: October 2006
Location: NW Ohio
Karma:
Senior Member
While I was replacing the 3.07 OEM final drive with new 3.55 gears, I also replaced the tranny Vacuum Modulator, among other things. The gears made a great improvement in the 'get off the line', and now the coach just seems to 'glide' down the highway, almost effortlessly.

But now I do notice the tranny shifting, whereas I didn't before. I think the shift points are too close to the bottom end, ie it's shifting too fast. After checking the manual and Gene's web site, I find nothing that tells which way to turn the modulator adjusting screw to extend the shifting time. Anybody know?

John


John Shotwell
Ridgeville Corners, OH
78 Royale Center Kitchen
 
Read Message
Read Message
Read Message
Read Message
Read Message
Previous Topic: [GMCnet] ] Best Battery solution for house batteries???
Next Topic: Advice on Quebec City?
Goto Forum:
  


Current Time: Wed Nov 20 11:39:11 CST 2024

Total time taken to generate the page: 0.04057 seconds