upgrading the converter and trans fluid

[strokin6L]

Right now i have the suncoast superduty rebuild kit in my truck with the billet input shaft. I'm using just regular mercon/dextron trans fluid cause that's what suncoast recommended at the time. Today i just had a buddy of mine order a suncoast triple disc converter with a 2000 stall and he will also be installing it. Now, how much trans fluid will still be in the trans after he drains it? Only reason i'm asking is because i want to switch to the new mercon LV fluid. Just wondering if it's gonna be bad if i was to mix a bunch of LV fluid with a couple quarts of the mercon/dextron stuff.

[police251]

There are only two fluids identified by Ford for the 5R110 transmission: Mercon SP and Mercon LV and they are compatible (may be mixed).

The Motorcraft transmission filter FT-145 is the external filter for the 5R110 but it is manufactured by NTZ so the NTZ-09-C09B is the same thing (less expensive and it includes the o-ring where the MC filter does not - requires a separate purchase).

The challenge with non-OEM filters is fit and filtration. I'm not aware of patent issues for the transmission filter (which is an issue for the engine oil filter - activation of the bypass valve) but the MC or NTZ definitely work and they work well. Use other non-OEM filters at your own risk - filters are CHEAP compared to a transmission.

[strokin6L]

yeah i know all about the aftermarket and OEM filters. I only use the OEM stuff and i've changed them before...i'm not worried about the filters nor was asking about them. And i also know about the LV and the SP mixing. However i'm currently running neither of those fluids in my trans. cause it's not the stock trans and not what was recommended by suncoast...I'm running regular mercon/dextron fluid. what i want to know is...when the pan gets drained...how much fluid will remain in the trans, not including the TC?

[Lilpooh]

Originally Posted by police251

There are only two fluids identified by Ford for the 5R110 transmission: Mercon SP and Mercon LV and they are compatible (may be mixed).

The Motorcraft transmission filter FT-145 is the external filter for the 5R110 but it is manufactured by NTZ so the NTZ-09-C09B is the same thing (less expensive and it includes the o-ring where the MC filter does not - requires a separate purchase).

The challenge with non-OEM filters is fit and filtration. I'm not aware of patent issues for the transmission filter (which is an issue for the engine oil filter - activation of the bypass valve) but the MC or NTZ definitely work and they work well. Use other non-OEM filters at your own risk - filters are CHEAP compared to a transmission.

With the Suncoast Superduty rebuilt kit, you can use the DextronIII or Mercon5. There clutch material is compatible with these fluids. You can read this, the sentence below the Low/Reverse paragraph.

[strokin6L]

thanks i know that already tho...suncoast told me when i bought the kit. I want to switch to the LV or SP fluid and just want to know how much fluid is left in the trans after the pan is drained.

[Lilpooh]

Originally Posted by strokin6L

thanks i know that already tho...suncoast told me when i bought the kit. I want to switch to the LV or SP fluid and just want to know how much fluid is left in the trans after the pan is drained.

I figured you knew already, I was just posting so others don't start a pissing match with you. LOL!! Sorry, IDK how much fluid might be left. Where's Bismic when you need him! LOL!!

[Evil Eye]

I believe it holds 18 quarts total. When I drain my tranny fluid (I don't flush it), it is usually about 12 quarts that comes out, leaving 6 or so in the torque converter. I'm going from memory, although I am really close to changing all my fluids again (120k miles).

[police251]

Drain it and measure how much you have then do the math....