Fluid Change
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Senior User
Joined: Aug 2003
Posts: 252
Likes: 0
From: Byron GA
does it have to be synthetic in the front or can i use reg?
Hotshot
Joined: Jul 2003
Posts: 12,177
Likes: 40
From: Newport, WA
For the trans fluid, the new "Mercon" labeled fluid is fine for the trans. They re-formulated the Dex3/Mercon and MercV that used to be sold so that now everything runs on one fluid. When I bought trans fluid a year ago, it was hard to find Dex3, only the new blend stuff could be found.
On the trans filter, don't bother. Mark Kovalsky, the guy who worked as a engineer on these trannies, says that if the filter is bad enough to need replaced the trans should be replaced with it.
On the trans filter, don't bother. Mark Kovalsky, the guy who worked as a engineer on these trannies, says that if the filter is bad enough to need replaced the trans should be replaced with it.
Post Fiend
Joined: Nov 2007
Posts: 9,549
Likes: 14
From: Payson, AZ
3 73 should be on one line as I typed it. If there is an L between 3 and 7
that means limited slip. If it is a space that means open diff, not LS.
The S stands for Sterling.
405 = Print Number (Model Number)
The 4 in the top line should be a letter, not a number. Maybe its an A.
It's the Revision Identifier (Change in Design)
The 2c5 should be 105 for 10.5 inch ring gear.
The c821 could be 8C21. Check it again. 8 for year built. In this case 1998. C for March and 21 for day in March.
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