Old stock shocks

Swbari00 · Post by **Swbari00** » Wed Apr 12, 2006 2:58 pm

I replaced my stock shocks with some monroe's. they were cheap and all i could afford. my question is, when i checked out my old shocks, i compressed them and they just stayed compressed. Is that a sign that they were bad? the monroe's would expand if you compressed them.

also, is changing the rear-end lubricant as simple as removing the cover, draining, then new gasket, replace cover and fill?

jeff024 · Post by **jeff024** » Wed Apr 12, 2006 3:48 pm

the answer is yes to all of your questions

Jim · Post by **Jim** » Wed Apr 12, 2006 4:01 pm

Swbari00 wrote:I replaced my stock shocks with some monroe's. they were cheap and all i could afford. my question is, when i checked out my old shocks, i compressed them and they just stayed compressed. Is that a sign that they were bad? the monroe's would expand if you compressed them.

also, is changing the rear-end lubricant as simple as removing the cover, draining, then new gasket, replace cover and fill?

My stock shocks weren't gas charged, I took them off @ 6000 miles and they didn't expand. My guess is not gas charged shocks don't expand.

killian96ss · Post by **killian96ss** » Wed Apr 12, 2006 5:31 pm

The stock shocks are most likely hydraulic and not gas charged. I just took a brand new replacement Delco shock and compressed it and it stayed compressed.

GM is always trying to save a buck here and there, and in the case of our stock shocks they probably only paid a buck for each one!

Steve

Swbari00 · Post by **Swbari00** » Wed Apr 12, 2006 6:13 pm

now with the new ones it seems like they kinda have to charge up? if i jump on the back the first bounce and maybe second are very floaty, then after that it seems the shocks kick in and its nice and controlled again. is that normal?

Blaze One · Post by **Blaze One** » Wed Apr 12, 2006 6:21 pm

which model of monroes did you get ?

Swbari00 · Post by **Swbari00** » Wed Apr 12, 2006 6:26 pm

not sure, but they are blue

does that help?

killian96ss · Post by **killian96ss** » Wed Apr 12, 2006 6:29 pm

Swbari00 wrote:is changing the rear-end lubricant as simple as removing the cover, draining, then new gasket, replace cover and fill?

Yes, just make sure you get the correct gasket that has the oiling holes on the sides for the wheel bearings. The stock gasket does not have these oiling holes and as a result it will wear out the wheel bearings and carve grooves into the axels.

If this happens you will need new wheel bearings and axles.

I have seen 10 bolt rear ends with only 70k miles have this problem because of the stock gasket.

Steve

Post by **HenryJ** » Wed Apr 12, 2006 6:37 pm

killian96ss wrote:... it will wear out the wheel bearings and carve grooves into the axels. If this happens you will need new wheel bearing and axles.

That is a little blown out of proportion.
While I don't see the addition, or modification as bad, I also don't see it as causing harm not to.
Our stock cover has no provision to allow or direct oil to these holes. A gasket with a hole will offer no more lubrication since the cover blocks the hole.
Here is the original thread- Wrong differential gasket

Don't worry. These axles have been doing fine without the holes opened, and some would argue that sending too much oil to the axle tubes could be a problem too.

killian96ss · Post by **killian96ss** » Wed Apr 12, 2006 7:13 pm

HenryJ wrote:
killian96ss wrote:... it will wear out the wheel bearings and carve grooves into the axels. If this happens you will need new wheel bearing and axles.
That is a little blown out of proportion.

I guess you have never seen the damage the wrong gasket can do.

I personally have seen the damage and on more than one vehicle with the 10 bolt. GM has been putting the wrong gasket on since 1989 or 1990.

A gasket with a hole will offer no more lubrication since the cover blocks the hole.

This is exactly why I installed a new aluminum cover and filed small channels to help the wheel bearing get the fluid that they need. If you look at the ZR2 diff cover you will clearly see that GM screwed up on our truck and several other vehicles.

Don't worry. These axles have been doing fine without the holes opened, and some would argue that sending too much oil to the axle tubes could be a problem too.

If you want to take your chances then go ahead and keep the factory defect cover and gasket!

I do agree that too much oil flow to the wheel bearings could be a problem since it will allow the gears to run with less oil which will raise the temperature and promote uneccessary wear on the ring & pinion.

Steve

Post by **HenryJ** » Wed Apr 12, 2006 7:18 pm

killian96ss wrote:...I guess you have never seen the damage the wrong gasket can do...

You're right there. And I have been through quite a few.

I modded an aftermarket cover too, but still don't see this one as a "must do". Good idea? yes.

For a stock cover it is a non-issue.

killian96ss · Post by **killian96ss** » Wed Apr 12, 2006 7:32 pm

If you want to re-use the stock cover then I would just cut the gasket so that the inside portion of each hole is removed which will allow a little bit of oil to find its way to the bearings.

Steve

Swbari00 · Post by **Swbari00** » Thu Apr 13, 2006 2:02 am

Blaze One wrote:which model of monroes did you get ?

i got the blue ones...dunno what model tho

sry guys, ya stole my thread

lol, couldnt help it with this one

Post by **HenryJ** » Thu Apr 13, 2006 3:59 am

Swbari00 wrote:...sry guys, ya stole my thread lol, couldnt help it with this one

You have to watch what door you open...

Swbari00 wrote:also, is changing the rear-end lubricant as simple as removing the cover, draining, then new gasket, replace cover and fill?

That pretty much opened the door

Swbari00 · Post by **Swbari00** » Thu Apr 13, 2006 4:25 am

lol ok ok, point taken

a2b · Post by **a2b** » Thu Apr 13, 2006 12:58 pm

just dont use gaskets....i dont

i use the right stuff

Swbari00 · Post by **Swbari00** » Thu Apr 13, 2006 1:20 pm

a2b wrote:just dont use gaskets....i dont

i use the right stuff

can you give me a bit more into what the right stuff is? Im really kinda new to the whole rear end thing so any info will help

Thanks

Post by **HenryJ** » Thu Apr 13, 2006 3:39 pm

He may be referring to RTV sealant.

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Old stock shocks

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