HELP: Changing Trans Filter on 1998 K1500

I recently changed mine... same vehicle and didn't remember there being a problem. Did the seal stay in the trany when you removed the filter?

I do know that they are 2 different sizes of filters, one's for a short pan and another for a deep pan. The short pan filter is for the S-10 Blazer type vehicle and the deep filter is for the K1500 trucks. I found out the hard way and had to run back up to the store for a replacement. Make sure you have the right one or the filter will not reach the bottom of the pan for fluid pickup!

Yes, the seal did stay in the transmission when I removed the filter. It said to remove it in the manual I have. I had to use a punch and a hammer to bend the seal in and get it to come out. Now I just can't seem to get the replacement seal in. It doesnt look like I damaged the aluminum housing where it seats. I am going to go to the dealer tomorrow and pick up a filter kit from them. I dont trust the one from Advance Auto Parts.

On my '97 Tahoe, I changed out the Fluid, and Filter a few years back.

While I didn't have any problems with the filter, I did have a problem with the cheap Cork Gasket which came with this supposed AC/Delco Kit.

The gasket was problematic, and split in one area trying to obtain proper torque values on the pan bolts.

I had to wind up dropping the pan again a short time later, and went to Chevy, and got the correct Black Rubberized/Vulcanized Paper Gasket. No probs after that. Mark

I stopped by the dealership today and paid $60 for a transmission filter kit. I was able to get the seal installed in the transmission by using a punch and hammer gently tapping it from side to side until it was completely seated. No wonder it was such a pain to take out. That is a very tight fit. I also had to take a rubber mallet and tap the filter up into the seal until it was fully seated.

Also to note, I had to take the heat shield off between the catalytic converter and the transmission on the passenger side to get the pan to come off. I remember seeing a post from someone describing having to bend or remove the cable support for the sfhit linkage. This wasnt necessary for me.

Overall this small job tuned out to be a big pain in the butt.

Forest

You could have gotten the same "kit" at a Advance Auto for around 25 bucks.

I assume you pulled the old seal out first, you would be surprised how many don't.