| Poster |
Message |
 Astro SS
|
 GM'i tagasilla probleemide põhjus!!
Differential Gasket Warning
Q: Is there some sort of problem with the rear axle bearings and/or the differential cover gasket?
A: If you look at the rear differential cover, you will notice two small indentations on either side directly in line with the axle tubes. These indentations are to direct the flow of oil through two holes in the differential case which then flows down the axle tubes to lubricate the axles and the outer axle bearings. The differential cover gasket is also supposed to have two holes in it, which line up with the holes in the case as well as the indentations to allow oil to flow down the axle tubes.
Starting in the 1990 model year, GM has been improperly installing differential cover gaskets THAT DO NOT HAVE THE LUBRICATING HOLES!!! If you do not change this gasket to one that has the proper holes, your outer axle bearings, as well as the axles themselves, will be destroyed by around 70K miles. The damaged (under lubricated) bearings will wear grooves in the axle shafts, requiring that they also be replaced. If this is left unchecked, the metal bits from the damaged outer bearings and axles will also damage the inner bearings, pinion bearings, as well as cause the spider gears to wear into the differential carrier.
GM has been made aware of this problem, but currently has done nothing about it, and even new vehicles still come with the improper gaskets. I just purchased a new factory replacement gasket over the counter and it also lacks the lubricating holes! The village of Schaumburg now replaces all factory gaskets with a replacement Fel-Pro gasket (P/N RDS 55028-1 which does have the proper lubricating holes) at the first vehicle service or by no later than 3K miles. Since they have been doing this, they have had no problems with damaged axle bearings and axle shafts, or other excessive wear in these areas.
Be aware that GM does not acknowledge that the rear axle gasket has a problem, and that the technician will not have any idea what you are talking about if you tell him to "just fix it". You must get the gasket yourself and take it in to them (or do it yourself) to get the correct gasket. There is no TSB or recall for this gasket.
As a side note, GM full-size light-duty pickups also suffer from this problem!
____________________________
Probleemid algavad kui on liiga palju toredaid mõtteid... |
Warning: Undefined variable $offset2 in /data01/virt688/domeenid/www.tqhq.ee/test/forum/func.php on line 306
02.01.2006 at 18:22 |
|
|
