This should on EVERY filter.

[Farmer]

Went to buy two Allison transmission filters today for the delivery trucks. Upon inspection this filter has this written on it. This should be on all filters for peace of mind.

This filter has holes not louvers, so my transmissions are safe for another day.

 

[901Memphis]

Yes it should

 

[Lolvoguy]

I concur

 

[ZeeOSix]

Dang, pretty thick base gasket on that one.

 

[LeakySeals]

When you run one of these filters do you remove the one in the pan?

 

[demarpaint]

That should put a few threads that pop up from time to time about using dented filters. Toss them!

 

[simple_gifts]

"Just use common sense"; I can easily see using a mildly dented filter.

 

[bullwinkle]

If the filter is dented enough to have creases on the end(s) of the dent, metal fatigue from pressure cycles can start a crack-& if it lets go fast enough & the driver doesn't shut it down in time, bye-bye bearings & possibly a thrown rod. Not worth the risk.

 

[wirelessF]

Don't AT's have a higher operating pressure than engines? I can see how higher pressure can put more pressure on a dented part causing it to burst open. AT cooler hose is rated at 400 PSI. I'm not sure how Allison AT's fluid routes through the filter though.

 

[Stewie]

Yeah don't know why not all filters gave this.

 

[Farmer]

Originally Posted By: wirelessF
Don't AT's have a higher operating pressure than engines? I can see how higher pressure can put more pressure on a dented part causing it to burst open. AT cooler hose is rated at 400 PSI. I'm not sure how Allison AT's fluid routes through the filter though.


Yes, transmissions operate at a much higher pressure than an engine. Under wide open throttle on my '10 Dodge Ram 3500 Cummins with the 68RFE, the transmission line pressure can peak up to 150-155PSI.

Leaky: This is the one that is mounted externally. The internal filter is a slip on conventional style transmission filter.

 

[DoubleWasp]

Originally Posted By: wirelessF
Don't AT's have a higher operating pressure than engines? I can see how higher pressure can put more pressure on a dented part causing it to burst open. AT cooler hose is rated at 400 PSI. I'm not sure how Allison AT's fluid routes through the filter though.


I doubt they are running that filter on the high-pressure side of the system. Probably on the cooler return circuit, like the 68RFE's.

 

[Farmer]

Originally Posted By: DoubleWasp
Originally Posted By: wirelessF
Don't AT's have a higher operating pressure than engines? I can see how higher pressure can put more pressure on a dented part causing it to burst open. AT cooler hose is rated at 400 PSI. I'm not sure how Allison AT's fluid routes through the filter though.


I doubt they are running that filter on the high-pressure side of the system. Probably on the cooler return circuit, like the 68RFE's.


True. What do I know I've only been here for so long.

 

[dlundblad]

This isn't quite as bad as putting a warning label on a snowblower saying not to use it on your roof, but its pretty close.

Inspect filters prior to purchase (if possible) and installation and you'll be fine.

 

[LeakySeals]

Originally Posted By: Farmer
Leaky: This is the one that is mounted externally. The internal filter is a slip on conventional style transmission filter.

Ok so having both filters installed does not hurt the flow.

 

[Farmer]

Originally Posted By: LeakySeals
Originally Posted By: Farmer
Leaky: This is the one that is mounted externally. The internal filter is a slip on conventional style transmission filter.

Ok so having both filters installed does not hurt the flow.


The 68RFE has two filters. One spin on and one conventional style.

 

[LeakySeals]

Ok thanks. I was thinking about using this on a 4L60E transmission which has an internal filter was hoping to just get rid of that internal filter so I never have to go in there again

 

[Colt45ws]

The pan filter protects the pump from sucking up boulders, trees and squirrels.
The external spin on cleans up everything else.
Once you add an external and change it regularly, the need to change the internal one drops to pretty much zero. The external filter will catch everything it would and way way more.
Unless something blows up. But, thats pretty obvious.

 

[SteveSRT8]

^^^True.

According to many sources a slushbox generates most of its debris in the first 10-30k miles and drops off dramatically after that. So it is indeed possible to imagine that you could eventually just exchange fluid only and keep it together a long time...