Recent Content by Len

If I'm understanding correctly, you plan to be towing 13,500lbs. Add in 7500 lbs for truck and passengers and you have a GCW of 21000. I may be mistaken, but isn't max GCW rating for auto and 3. 55 gears 16,000lbs? At any rate, your stock transmission is the weak link. And if warranty is...

Bob, My owners manual recomnends changing the differential lube to synthetic for towing. They do not even specify a need for periodic changes of lube in the 6 speed transmission. But they do recomend only one oil, part number 4761526 I believe. And the tag on the transmission gives the DC, GM...

Cliffman. The tag on the transmission references Texaco STF1874. but the more common Texaco terminology is MTX. If you work hard enough you can find it on the Texaco web site. I don't believe it is synthetic.

Walter If you are trying to maintain your warranty, why change? DC has made their position clear in both the owners manual and with the sticker. I have yet to see any objective data to indicate that there is a product superior to the oem fluid for the application. My truck has 26000 miles of...