Tractor Talk Discussion Board |
Re: GMC Truck Transmission question
[ Expand ] [ View Follow Ups ] [ Post Followup ] [ Return to Forum ]
Posted by Brokenwrench on February 03, 2005 at 09:54:56 from (69.128.196.191):
In Reply to: Re: GMC Truck Transmission question posted by Allan in NE on February 03, 2005 at 08:29:49:
Not to get nit picky, but the 4L60E has the VD vane pump. The 4L80E has a fixed gear pump w/ a pressure regulator valve in the pump body. What I see alot of, is wear in the pressure regulator sleeve. Causing lower line pressure, especially under lower rpm load (pulling down the highway). Converter or clutches overheat and fluid starts blowing out the vent. If it wasn""t just a cooler line leak, the low line may not affect it until those condititons happen, like two states away pulling a trailer. I own a tranny shop in MN, and if you were my customer, I would have let you make the call to go thru or not. The benefits are good if done right, you have an early 4L80E, so there"s lots of key updates to put in. Molded forward and direct pistons, shift kit (prevent runaway line blowing out OD, and replaces PR sleeve with steel sleeve and valve). If you pull alot, these type of things are great updates. I"d get another opinion.
Follow Ups:
Home
| Forums
Today's Featured Article -
New Hitches For Your Old Tractor - by Chris Pratt. For this article, we are going to make the irrational and unlikely assumption that you purchased an older tractor that is in tip top shape and needs no immediate repairs other than an oil change and a good bath. To the newcomer planning to restore the machine, this means you have everything you need for the moment (something to sit in the shop and just look at for awhile while you read the books). To the newcomer that wants to get out and use the machine for field work, you may have already hit a major roadblock. That is the dreaded "proprietary hitch". With the exception of the
... [Read Article]
Latest Ad:
Sell 1958 Hi-Altitude Massey Fergerson tractor, original condition. three point hitch pto engine, Runs well, photos available upon request
[More Ads]
Copyright © 1997-2024 Yesterday's Tractor Co. All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V. Yesterday's Tractors - Antique Tractor HeadquartersWebsite Accessibility Policy |
|