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#341813 - 08/17/05 02:59 PM Transmission Filters
Mighty HD Offline

Registered: 01/22/05
Posts: 174
Loc: Florida
What's a good transmission filter to get as an OEM replacement. I am using the standard pan filters and It's time to replace. I was thinking of getting new AcDelco filters and stick with OEM--What's your thoughts?

04 2500hd 4x4 6.0 4l80e
98 Pontiac grand am 3.1

#341814 - 08/18/05 12:56 AM Re: Transmission Filters
Alex P. Offline

Registered: 07/20/05
Posts: 304
Loc: Spotsyltucky, VA
AC Delco puts together some good filters, but I don't think you can really go wrong for a transmission filter. I've never had a complaint about the Pro-King filters, they are affordable and the kits come with the gasket.

#341815 - 08/18/05 01:04 AM Re: Transmission Filters
Donald Offline

Registered: 03/21/04
Posts: 18215
Loc: Upstate NY
I was told that better than changing the transmission filter is to get a transmission flush. They pump first a dispersent then fresh fluid through the transmission cleaning the filter and replacing all the fluid including what is in the torque converter and cooler.

Best are places that use a variable speed pump that adjusts the flow based upon the return flow. A few places have blown out seals with too high a pressure.

#341816 - 08/18/05 02:16 AM Re: Transmission Filters
motorguy222 Offline

Registered: 03/19/04
Posts: 1816
Loc: Ky
I have heard bad things about the flushing of transmissions.

The flushing can cause buildup to come loose in an older tranny and get trapped in passages.This can cause a trans to fail becasue of lack of fluid.

One would have to make sure that it is done right.

I tend to think that for a tranny that is working good and has had reasonable service that a flush would not be needed.

A filter and fluid change should be all that you would need to do.

The filters from O'Reilly's are cheap and come with the gasket.

Most tranny filters keep out the large particles that comes from the wear of friction plates and metal parts.They dont really filter the fluid like an oil filter does.

#341817 - 08/18/05 02:59 AM Re: Transmission Filters
unDummy Offline

Registered: 02/01/03
Posts: 8756
Loc: RI
Flushing uses the ATF pump to control fluid amount. All they do is splice inline with the cooler. Don't use any flush chemicals. The complete ATF change is good enough if you go that route.

Anything anyone hears concerning flushes is hearsay and mostly BS.

Don't look for a cheap ATF filter. Buy the OEM or equivalent one from dealer or the autoparts store. When I was at Advancedauto for an ATF filter for my car, only one of the several they stocked was comparable to the OEM in quality. Autozone only stocked one brand which was junk. Pull your filter/gasket from one car and visit the autoparts stores using the other.
And, concerning the pan gasket(if equipped), use a material that is the same as the OEM. Don't buy a filter kit with a cork gasket when your OEM is using a rubber gasket.

When in doubt, stick with OEM.

#341818 - 08/18/05 06:07 AM Re: Transmission Filters
kingrob Offline

Registered: 08/06/05
Posts: 1372
Loc: NC
I've always had good luck with the Autozone filters. They're made by Champ and have whichever OEM type gasket you're car came with, and they're pretty cheap price wise.

#341819 - 08/18/05 10:26 AM Re: Transmission Filters
Alex P. Offline

Registered: 07/20/05
Posts: 304
Loc: Spotsyltucky, VA
Changing the filter and a portion of the fluid is certainly better than nothing, and is often all that is required. A complete flush is generally preferred, for sure. However, I don't know that I'd do a BG or similar flush on a poorly maintained, old, high mileage tranny. Sometimes it seems like the varnish is all that's holding it together. [Razz]

#341820 - 08/18/05 02:41 PM Re: Transmission Filters
RichR Offline

Registered: 02/21/03
Posts: 583
Loc: Chicago
I had the good luck of getting trans filter kit from ATP at smaller jobber shops.High quality gaskets and exact fit filter assembly.

#341821 - 08/18/05 05:09 PM Re: Transmission Filters
Gary Allan Offline

Registered: 09/28/02
Posts: 39806
Loc: Pottstown, PA
ATP has it all. NAPA carries a good amount of their stuff.

#341822 - 08/18/05 05:54 PM Re: Transmission Filters
davefr Offline

Registered: 03/31/03
Posts: 418
Loc: OR
Never have a tranny flushed!!! (good chance of killing it). Beside that you need to drop the pan anyway to change the filter and clean/inspect the magnet.

Just drop the pan and replace fluid and filter and do it at a more frequent interval then the manufacturer recommends and you don't have to worry about the residual fluid in the torque convertor.

#341823 - 08/18/05 06:21 PM Re: Transmission Filters
baomo Offline

Registered: 06/26/04
Posts: 70
Loc: Virginia
i used a purolator it looked just like the oem one, no complaints.

#341824 - 08/18/05 07:07 PM Re: Transmission Filters
Ramblin Fever Offline

Registered: 06/28/05
Posts: 1627
Loc: Timberline
Originally posted by davefr:
Never have a tranny flushed!!! (good chance of killing it).

I do believe this is possible with an older neglected tranny, or with an irresponsible shop; but I don't believe it's the norm.

I've had it done every 30K on a few vehicles now with over 140K miles and no issues thus far - knocking on wood, BTW.

#341825 - 08/18/05 07:47 PM Re: Transmission Filters
unDummy Offline

Registered: 02/01/03
Posts: 8756
Loc: RI
Flushing never kills the transmission when done correctly.

The problem is that most people wait for transmission issues, and then get a flush and blame it for the problems they've had.

#341826 - 08/18/05 08:20 PM Re: Transmission Filters
XS650 Offline

Registered: 12/21/03
Posts: 12385
Loc: Northern CA
Originally posted by unDummy:
Flushing never kills the transmission when done correctly.

The problem is that most people wait for transmission issues, and then get a flush and blame it for the problems they've had.

There's a lot of that goes on with a lot of products.

#341827 - 08/18/05 08:29 PM Re: Transmission Filters
kenw Offline

Registered: 10/10/04
Posts: 1979
Loc: Houston
the basic point is that flushing isn't necessary. It's overkill and won't make it last one day longer over a properly scheduled drain and refill.

it's your money. Just don't complain about not having enough to put gas in your tank when you frittered it away on a bunch of unnecessary pseudo-maintenance.....

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