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6L80 external filter DIY

cossack

By cossack
in Modifications & Accessories

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CyaDwnthaRd Enthusiast

CyaDwnthaRd

Posted
Posted

Hello,

I happened across your post and am planning my own installation of an auxiliary transmission filter. 

I do have questions?  Is there any data regarding flow restriction/constriction on the return fluid that could prove detrimental?  Secondly, from the posts it was mentioned using rubber hoses with barbed connections.  Can I assume the pressures at the INLET & RETURN are low pressure?

 

My filter says not to exceed 90 psi.

 

Thanks again. 

  • 2 months later...
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cossack
cossack

After changing out ATF in my '15 model truck, with~35k miles, I decided to install an external filter to help better manage all of the debris, shavings, wear particles inside the transmission. There i

cossack
cossack

https://drive.google.com/file/d/1E0_bs_lVr4acbv6YEHjpiFH9kDMVumC7/view?usp=sharing Here it is, but again, grinder and paint, make me the welder I an't. I bought a spare pan off of ebay just

2005Silveraydo
2005Silveraydo

Only about 700 miles. Next month I plan to do a pan drop, change the fluid and both filters. It only has 17k miles on it but I am interested to see what everything looks like. 

Posted Images

  • 2 months later...
cossack Enthusiast

cossack

Posted
  • Author
Posted
On 2/18/2019 at 10:09 AM, CyaDwnthaRd said:

Hello,

I happened across your post and am planning my own installation of an auxiliary transmission filter. 

I do have questions?  Is there any data regarding flow restriction/constriction on the return fluid that could prove detrimental?  Secondly, from the posts it was mentioned using rubber hoses with barbed connections.  Can I assume the pressures at the INLET & RETURN are low pressure?

 

My filter says not to exceed 90 psi.

 

Thanks again. 

I have no way of knowing what the total restriction this set up adds.

Also not sure what the exact pressure is in this circuit. One thing is most oil filters are rated to about 300 psi. It would be safe to say that its probably below 300.

I know my answer is not very helpful. Do let us know what you end up doing!

 

cossack Enthusiast

cossack

Posted
  • Author
Posted (edited)
On 5/8/2019 at 10:36 AM, the33z33 said:

Interested in pan drop follow up on this set up as well. 

I updated first post.

 

Edit: Cant change original post.

 

Update.

Changed ATF, filter and dropped the pan Last Sunday (7-28-19) with 50,548 miles on the truck.

Oil filter looked very similar to the one in original post.

Pan looked great! Only shmoo was on the magnet and no build up of any kind anywhere else. Grey stain is left over from water when I tested my new weld in drain plug. I left water in the pan for few days to make sure it wasnt leaking.

 

AKgppXC.jpg

 

Gw5KiCa.jpg

 

Fa7YOhF.jpg

 

RoMyoh3.jpg

 

Magnet shmoo

 

yiqKYGp.jpg

 

After wiping off the oil.

 

hYb428P.jpg

 

UIlCuog.jpg

 

Sy6p1v3.jpg

 

 

Edited by cossack
  • Thanks 1
Bobaloo22 Enthusiast

Bobaloo22

Posted
Posted

Looks great! One question, how or what did you do to get the clearance between the pan and exhaust. Thanks!

flyingfool Senior Enthusiast

flyingfool

Posted
Posted

if you want the best trans bipass filter on the market, this is it , beats screw on filter every time.

check it out. i've used these on past truck and it cleans the trans oil so well it actuallty filters out some of the red dye in the oil... 

https://www.frantzfilters.com/

cossack Enthusiast

cossack

Posted
  • Author
Posted
On 8/3/2019 at 12:59 PM, flyingfool said:

if you want the best trans bipass filter on the market, this is it , beats screw on filter every time.

check it out. i've used these on past truck and it cleans the trans oil so well it actuallty filters out some of the red dye in the oil... 

https://www.frantzfilters.com/

I think that Frantz is meant to be used as a bypass set up where is this one is a full flow, inline filter. Thanks for the heads up though.

flyingfool Senior Enthusiast

flyingfool

Posted
Posted

full flow isnt neccessary, you just want to clean the oil. but the frantz can be configured to run full flow, its not a problem. just the filtration level is so high on a frantz it possibly can clog easily after 5000 miles of catching debris

cossack Enthusiast

cossack

Posted
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Posted
On 8/5/2019 at 11:07 AM, flyingfool said:

full flow isnt neccessary, you just want to clean the oil. but the frantz can be configured to run full flow, its not a problem. just the filtration level is so high on a frantz it possibly can clog easily after 5000 miles of catching debris

Doesn’t sound like it should be used in this case.

flyingfool Senior Enthusiast

flyingfool

Posted
Posted

i use them on most of my heavy duty truck transmission with great success.. when i pull the filter roll after 8000 miles one side is black from super micro fine metal and the otherside is pink and clean. the y are amaizing products. 

another company is called motorguard... similar style filter

  • 5 months later...
SparkKnock Enthusiast

SparkKnock

Posted
Posted (edited)

Hi , any update on how it’s holding up have you had any leaks? I’m curious to see how the copper line is working out for you , with all the vibrations and heat cycles I would be worried about the copper line fatiguing and cracking . Similarly as the lines crack on air compressors . Great job on the detailed tutorial I’m getting ready to do the same on my truck just wondering if you would go the same route again . Thanks 

Edited by SparkKnock
Misspell
  • 6 months later...
  • 5 years later...
cossack Enthusiast

cossack

Posted
  • Author
Posted (edited)
On 1/24/2020 at 10:47 PM, SparkKnock said:

Hi , any update on how it’s holding up have you had any leaks? I’m curious to see how the copper line is working out for you , with all the vibrations and heat cycles I would be worried about the copper line fatiguing and cracking . Similarly as the lines crack on air compressors . Great job on the detailed tutorial I’m getting ready to do the same on my truck just wondering if you would go the same route again . Thanks 

Been off this forum for a while. Truck has 75,000 miles on it and I haven't had any problems so far. 

How did you install go?

 

 

Edited by cossack
cossack Enthusiast

cossack

Posted
  • Author
Posted (edited)
On 7/26/2020 at 4:21 PM, flyingfool said:

did you cut the filter open to see inside?

I did, here is a link to post I made on another forum (hopefully its allowed). I changed it in 2019 and in 2023. 

 

#post-6579632link

Edited by cossack

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