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BrianR · 02-16-2006, 07:59 AM

I have a Cat C15 and a E-F 9 speed Top 2 trans.

I don't do lugging as that spikes my exhaust temps and melts the turbocharger.

What happens is this: I'm cruising at 65 in nine @ 1400rpm. I hit a long hill and the rpms drop even with the cruise trying to compensate. When I get down to 1150 rpm, the trans automatically goes to 8. I hate that. Mostly because I should shift to 7 when I hit 1100 or so. Eighth gear is a formality but once in a while it's all I need to get over a hill.

Anyway, that's all the automatic there is...the rest is all on me and I've had to go down as far as 5 @ 1500 to get a heavy trailer up a steep hill, such as Donner Pass or Cabbage Hill. Poking along at 25 mph in the far right lane is hard but I've learned to get along over there since I also have a neutered truck.

Brian

02-16-2006, 07:59 AM	#4
BrianR Cleverly disguised as a responsible adult Join Date: Jan 2001 Location: Dallas, TX Posts: 3,338	I have a Cat C15 and a E-F 9 speed Top 2 trans. I don't do lugging as that spikes my exhaust temps and melts the turbocharger. What happens is this: I'm cruising at 65 in nine @ 1400rpm. I hit a long hill and the rpms drop even with the cruise trying to compensate. When I get down to 1150 rpm, the trans automatically goes to 8. I hate that. Mostly because I should shift to 7 when I hit 1100 or so. Eighth gear is a formality but once in a while it's all I need to get over a hill. Anyway, that's all the automatic there is...the rest is all on me and I've had to go down as far as 5 @ 1500 to get a heavy trailer up a steep hill, such as Donner Pass or Cabbage Hill. Poking along at 25 mph in the far right lane is hard but I've learned to get along over there since I also have a neutered truck. Brian __________________ Never be afraid to tell the world who you are. -- Anonymous