I'm going to do this soon( as soon as I find time) and I read the tech folder on the flush procedure. It doesn't say anything about filter(s) removal. Is there anything I need to know, any special tools I need before I get started? In other words, does the internal filter pull out easily, does it have a bracket holding it in, I guess? How about the external filter? It looks like it unscrews from the housing. Is this correct? TIA- Tim

 

The external tx filter unscrews from the housing. I found it much easier to use an impact wrench to get it off. Also, when you purchase the replacement filter, you may or may not get a new o-ring. Transmission fluid does not degrade the rubber like diesel fuel will, so unless you pinch the o-ring (or damage it in another way), the o-ring should be OK for re-use.

 

Yeah I checked the box for the ext. filter, no o-ring. Anything on the internal filter? When I changed the trans filter on my old CJ7 w/a TF999 I think it had a bracket that bolted to the valvebody that held the filter in place- its been a few years and I'm not positive. Thanks for the reply!

 

You don't have to change the internal filter. I didn't flush mine either. My transmission has never overheated, so i figure the fluid in there already is good. I just drained the fluid, changed the external filter, added 8 qts. Also, get a cheater bar for the external filter. That thing is on tight!

 

I want to change all the fluids so I'm off to a fresh start with intervals, since I bought it used. I already got both filters so I will change both, but I am not going to do the flush, just the 2 filters and 8 qts. 10-4 on the cheater bar!

 

I did just as tx stated, i just changed the external filter and 7.5 qts of fluid, i figure I will just change the fluid in 15,000 intervals!

 

The internal filter just pushes up into the tranny and is held in place by the O ring and friction no screws brackets etc. The pan gasket is re-usable just be careful when taking it off. Have fun.

 

Thanks Bullitt, that's what I wanted to hear! I knew about the pan gasket. Slomans I don't know if/when it was changed last so I wanted to start off changing everything so I know where I'm at with what.

 

That's because it was written before there was a TorqShift with an external filter. Another thing that is missing for the TorqShift is that it has a thermostat. The TorqShift MUST be over 170F to do the flush, or most of the fluid will just recirculate inside the trans. You should also warm the new fluid going in or the thermostat could close during the flush. That would just mix old and new fluid instead of replacing the old with the new.

 

The link to the flush procedure for the Torqueshift in the 6.0 tech folder is the correct procedure.
http://www.truckblog.com/story-582-h...t_transmission

All Torqueshift equipped SD came with an external oil filter.

 

Isn't the internal filter really just a screen?

Also, does anyone know what torqe to use when putting the external filter housing back on? I'm also changing mine this week or next.

 

Not anymore. Ford upgraded the internal filter to match what the external filter was and deleted the external filter. This started in the '08 trucks, but I'm not sure if it started at Job#1 or not.

 

...and this Forum is the 03-07 6.0 Forum.

 

There was No BEFORE the external filter with the Torqueshift. When the Torqueshift was first introduced on the SD with 6.0 in the 03 MY the external filter was installed and has been installed on all Torqueshift equipped SD including the V10 & V8 gas motors equipped with the Torqueshift up through and including the 08 Job#1 SD.

There has never been a 6.0 & Torqueshift equipped SD without an external transmission filter. The OP posted in the 6.0 forum regarding a 6.0 & Torqueshift equipped SD and the Torqueshift flush procedure is correctly outlined in the 6.0 Tech folder.

Starting with Job#2 08 SD trucks equipped with the Torqueshift, the external transmission filter is being removed and the internal filter is being replaced with a "High Efficiency Sump Filter" (HESF). According to FMC the new internal HESF is supposed to filter "as well" as the old system running the external filter.
Since in pan filters are on the suction side of the pump, they must flow at a higher rate resulting in a coarser micron rating of the filtration media to prevent starving the pump. The advantage of the external bypass filter is that it is on the push side of the pump and therefore can contain filtration media with a much finer micron rating than an in pan filter without restricting fluid flow through pump. Time will tell if the new HESF system really is better or equal filtration compared with the original setup. I suspect it will not be as good of filtration since the external transmission filter contained a much finer micron rating than can be installed on an in pan filter.

Now as far as the flush procedure for the Job #2 08 SD Torqueshift without an external filter, the procedure will remain the same as the previous Torqueshift with an external filter, the only difference on the Job #2 08 SD Torqueshift is there will only be one filter to change instead of two.

 

That's true. I wsa referring to the older article about changing the fluid and filter on the 4R100. It was written before there was a TorqShift transmission. I wasn't thinking about the newer article. That's what you get when I jump between forums.