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Remote tranny filter vs. in-pan

nutt7

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Hi, I am about to install a tranny cooler for my 700r4, and I also wanted to tap the pan for a drain plug. While I'm at it, I thought about using a remote tranny filter to REPLACE the factory in-pan filter. I want to do it this way for ease of maintenance (never dropping pan, easy filter change). Is it a good idea to ditch the factory one? I know 2 filters are better than one, but I would rather have convenient maintenance, especially if the remote filter is as good/better.
Thanks.
 
owenat7 is right. The transmission uses the filter as a pick-up. It has a large surface area just off the pan floor so it can pick up fluid at any angle. If you really wanted to get around it you would need to fabricate a pick up tube that resembled the factory filter.

IMO, I would just run both if I really thought I needed the extra filter capacity.
 
Yeah, I am not really concerned with the extra capacity yet. Has anyone ever cut out the actual filter element? Sorry if I sound dumb, but I don't know what the filter looks like. Thanks for the replies.
 
It's kind of like a Brillo pad (the element).

More importantly...why? Unless you're drag racing (and then it's still arguable), any filter will flow more than enough to feed the pump. Some drag racers use a brass screen-type filter but I don't think they filter as well. The purpose of the filter isn't really to "filter" as much as screen out things like check balls, chunks of seal, etc that would punch holes in the casting or plug a passage/jam a valve.

The spin on filters are great, I run them on all my trucks. They will keep your fluid nice and pink for many many miles. I also like that in the event a friction falls apart, the spin on will keep it out of my cooler. Not that flushing the cooler is difficult, but it's one less thing on my mind during an overhaul.

On my rigs, I run a spin on before the coolers and a pan with a drain plug. I usually take the extra ten minutes to drop the pan, mostly to change the gasket, but I do the filter while I'm at it. The spin on filter would make me more comfortable with not dropping the pan if I were in a hurry...but mostly it just makes me a lot more comfortable with going longer between fluid changes. It's a sealed system so I will run the fluid a lot longer than a motor so long as I am removing clutch material from the fluid (this is what the spin on filter does so well).
 
I have ran the spin on filter oe the main on my race truck for 4 years. same trans and one fluid change.

I think the large cooler and filter are the main reason it lasted so long.

I cut it apart once and started seeing some debris i the filter.

trans builders and some classes ive been in have claimed the stock filters are designed to hold 100,000 miles of dirt and debris. You can define that how you wish, but i have also cut apart stock filters just to see whats inside and been surprized that little (to my eye) dirt and debris would have been trapped inside.

A magnet is a Plus also
 
Great info! I think I will just leave the stock one and also run the remote filter. The guy I bought the rebuilt tranny from bragged that his trannies lasted at least 3 years. I was like, **** I hope so! Three years doesn't seem that long to me. Hopefully the cooler and filter will extend the life for much longer than that.
 
he's bragging about his rebuilds lasting 3 years??? if I hear that from a rebuilder, I'd have been walking out the door right after that comment.
 
3 years LOL..The cooler is your best protection by far.If the builder is worth his weight in dung he will adress the weak points of the 700r4 also so it lives a long life..3 years LOL.
 
His words were something along the lines of: "I have customers that come back every few years for another tranny". Hopefully I misunderstood something. Maybe these select cutomers have many vehicles or they beat the crap out of their cars/trucks!

Mine is a year running perfectly so far...gosh, now you guys made me nervous...I am over here recalling the conversation I had a year ago!!
 
just run a standard remote filter boss with a 3/4"/16 center.. takes a chevy filter... wix 51515 or napa gold 1515


like any of these in Summit...

http://www.summitracing.com/search/Part-Type/Oil-Filter-Mounts/Oil-Filter-Thread-Size/3-4-16-in/Remote-Oil-Filter-Bracket-Style/Single/?keyword=remote+filter&Ns=Price|Asc


i run the billet Earl's ones....


000_0005_2-2.jpg





EAR-2178ERL.jpg






here's my old chrome one...... which i actually need to clean up and sell in here...



13480tfilter1.jpg
 
idk, it's the x-over # from Wix for a 51515.... there very well could be 3/4"/16 ford setup for all i know....

got 4 1515's for it now, but i'll be going back to Wix next filter changes tho as i now have a new supplier at work who does wix..
 
May I ask if it is possible to have too much fluid capacity outside the Trans? I hear that more fluid is better... But is there a limit too where the trans cant circulate it any more? And are you just using oil filters?
 
No such thing as too much fluid. It will only result in better cooling which will result in a much longer lasting 700r4. Those things hate heat and abuse with a stock build. Put a remote filter (in addition to the one in the pan) AND the biggest stacked plate (not tube and fin) cooler you can find on there. Keep it out of OD if RPMs get low up a hill (or drive really fast up the hill like I do haha).

If you do this your 700r4 should have a long and happy life even with moderate abuse... If it only lasts 3 years it was built wrong.
 
nah, an auto pump is moving fluid in the 50 to 200 psi range iirc.. it's just a hydraulic pump... my biggest issue is whether to do the 2 qrt extra pan, or go for yahtzee, and get the 4 qrt...

and yes, it's just a standard engine oil filter.. a Wix 51515 is about a 20 micron iirc... the micron rating is basically whats important when it comes to a filter.. other than the physical mounting, micron is the spec thats important..

an example of that is on the boats... whether a fuel system/powerplant gets a 10, 30, or even 60 micron filter, depending on it's requirements..
 
So what remote filter are you thinking of using?

just run a standard remote filter boss with a 3/4"/16 center.. takes a chevy filter... wix 51515 or napa gold 1515

I went with the wix 24764. It has the center threads listed above, dual 1/2 npt ins and outs (2 extra for sensors or whatever). Have yet to install it...
 
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