As the topic states -What 727 transmission oil are you guys running???



/Tom

Dexron III this time around.. use to use type3 mopar but that has gone away..try type fa last time but realy did;t like it.

Just some cheap Dexron. I change it every 30-40 passes since I have an aluminum front drum.

I used to use Type F. Now running AmsOil.

Kinda wondering why as I haven't seen much diference.

Might go back to type F

Type F in my 727 per request.

OK, seems most just use the more or less over the counter everyday trans oils...

I have been running Type F in the trans. Just had it rebuilt because, well long story short, the low/rew drum split in two..

Guess Ill continue to run Type F oil in it..

/Tom

Type F here.

For a mostly stock torqueflite, I agree type F has its use. But my trans has 5 frictions in the front drum, and 165 psi line pressure. It doesn't need the extra friction of the type F, and I believe (hope?) Dexron will lubricate better.

And if you only change the fluid once a year (or less), I agree a name brand fluid would be my choice over a store brand.

My last fluid change, Castrol ATF was on sale almost as cheap as the store brand, so I bought the Castrol. Even though normally I use the cheap stuff. I put 7 qts in my setup when I change the fluid and filter every 30-40 passes, and my trans looks good inside (several inspections over the years). So, I am not spending $8-12/qt on fancy ATF. Have you seen the price of Royal Purple ATF?

If there is a lube issue, hp level dictates roller. I am still using type f in my 5 clutch unit. I don't see any issues with more coefficient. Most 727's I see have front clutch heat check issues, which indicates lack thereof, or clearance issues. I have gone to clearances that were verboten 20 years ago.

Cheapo type F here

I agree many 727 builds have front clutch issues. But my setup doesn't (and it sounds like yours doesn't either). I like the 5 friction setup (high torque, race, application).

What front clutch clearance are you running? I have settled on 0.075", but have run down to 0.060".

John Force's favorite here....Castrol GTX Type F

one more with TF, here.

Type F

Coming from the "keep it at .050" days, it was hard (25 years of .0125 per disc) to start seeing .075-.080 It makes snap ring/oversize steel selection a breeze. I'm anal, so it would sometimes take me a couple of hours, and sometimes machine shop expense, to arrive at .050.

Dex 3,prefer name brand

Type F here too. I also subsitute 1 qt of 30w for a qt of trans fluid. If it ain't broke, don't be trying fix it.
Brian

I run a 904 and Type F

904 Mobil 1 ATF w/Lucas additive. About 20* cooler w/ y trans brake.