Whne you plumb a bypass you are robbing lube and cooling fluid from the transmissions, no restrictions but a bad idea. I have yet to see a bypass system even suggested for that very reason.

That goes without saying. However, the transmission is a mostly sealed system that is subject to very little contamination. Given the transmission functions correctly "dirty" oil is due to a lack of service and/or trans failure which a filter will not cure, help, or affect.

Do you have a quantifiable data to prove this "theory"? Following correct service procedures is just as effective, and, it is the recommended route by the design engineers.

Again, given the transmission functions correctly there is no need for addtional filtering. This has been proven many times over the life of this transmission design.

Adding addtional filters without addressing the the cause is like treating the symptoms while ignoring the disease. Efficacy is never very good and it is truly a placebo mod.

 

That is absurd and absolutely false. I'm sure the things you have not seen or heard of would fill volumes.
So what, you think it gets dirty or contaminated like 5 minutes before you drain it? This is coming from the guy that managed lunch his 48RE with a Smarty Jr. Riiiight.
And we all know cars and trucks are designed and engineered to the highest possible failure-proof milspec standards, right?
Oh, I guess that also explains the poor reputation of the Dodge truck automatics.
Get back to us after you grenade your trans for the 2nd time.

 

What is it that confuses you about "bypass", the term or the concept? All you have to do look at the Amsoil "bypass" and Franz "bypass" filtration systems to understand what it means and how it works. Like I said, neither you nor anybody else has ever posted or suggested a true "bypass" filtration system on this or any other forum. There is a way to build a true bypass system that functions correctly but the concept is a little harder to grasp and implement so of course it is ignored.

You are just full of misconceptions and bad information. For the record, almost 60k with a SMARTY SR mostly SW6, RP2, TQ 3 plus 4 trips across the US pulling a trailer and a lot of playing at low rpms. The stock 48RE acquitted itself admirably I must say.

They are designed for the highest return at the lowest cost, we all know that. Lessee, the 48RE is still using the same lube\cooling system developed 45 years ago and it has not been materially bettered. I guess Detroit wasn't too impressed with your ideas and resume, eh?

Because a small percentage of owners post on a forum their bad luck at thrashing a transmission till it dies, it applies across the board. Oh no!!! The sky is falling, the sky is falling!

Guess you missed the part where it has already exceeded the stock trans performace by 10k with no indication of problems. If anything it gets used harder now because it will take it.
A little less talking and more listening might learn you a thing or two. We can always hope.

 

What makes you think the concept or implementation for a bypass filtration system is any different for a transmission or an engine?
I guess you missed that one.
You're the one with the broken tranny.
I'll keep what I know apart from what you seem to think you know for now, if you don't mind.
I guess not. They were not continually re-engineered, strengthened and built with new and better hard and soft parts along with better pumps, coolers and converters over the years so they could be run behind the Cummins. Nope hasn't changed at all.
Not for people who change the fluid at reasonable intervals and do things like run external filtration to reduce wear.
You would be right about me not paying much attention to anything you post. Right on target there, for sure.
In your case it it would be a little less talking shyt you don't know about.

You come on here and give bad advice, just be ready to get called on it.

So cherrybus, just curious, have you seen a 68RFE?

 

There is no difference in the concept. There is however a huge difference in the oiling system between an engine that makes the difference. Its not even a subtle difference either and you obviously missed that whole critical concept.

Didn't miss it at all. In fact, I use it constantly to illustrate how NOT to add non-functional crap to a system and label it something it is not.


The rest of your crying, whining, and insulting is typical when you get backed into a corner and can't deliver, disagree with you and out comes the asshat. LMAO!!!!

 

So cherrybus, ever seen a 68RFE?

C'mon now. You've got all the rope you're gonna get this time....

For anyone who is interested, here is an easy, inexpensive way to add an effective bypass filter to the Dodge auto trans:

http://stuff.is-a-geek.net/PhotoAlbu...ics/CRD_11.JPG
http://stuff.is-a-geek.net/PhotoAlbu...ics/CRD_12.JPG
http://stuff.is-a-geek.net/PhotoAlbu...ics/CRD_13.JPG

Put about a .030" restrictor anywhere in the filter circuit and it will not significantly affect flow through the cooler, bypassing a constant supply of some small percentage of that flow in the form of CLEAN fluid back to the pan.

The way it works is the pressure differential between the hot and cold lines is enough to move fluid through the filter. The typical engine oil filter is about 300% more efficient than the stock filter found inside the pan. I'm upgrading it to a WIX 51749 setup (5um nominal) next fluid change. They hold about 3qt. for additional capacity as well.

With that and the Maghytec pan it's doubtful I'll ever have trans issues like cherrybus did.

 

I noticed you still have the check ball inline? Did you drill it out or are you leaving it in for a reason?

 

ok fellas this is the first i have heard about the check ball i must have totally spaced wherever it was mentioned where is it? and i may as well ask how you get rid of it so you only have to post once.

 

There is a lot of good info in this thread. Keep it coming!

So, if I decide to do one of these, I want to know what the flow is in there first! It would be a good addition if you make sure not to slow down the flow any.

I also agree with fixing as many 'flaws' as you can afford. These really are great transmissions! Just to hold up to the mighty torque of the Cummins for any period at all is a feat! Just adding a shift kit does wonders for these trans. Mine had the hunt, shift back and forth from 2nd to 3rd in stock form. The shift kit cured that, firmed up the shifts and also made the lock up a lot firmer. In fact, I only went half way on that mod and I'm glad I didn't go all the way. It is plenty firm enough!

 

If you look at the picture where he has the tee fittings installed the one cooler line with the brass fitting is the check ball. take that out and put in a regular fitting. Yes you will have to replace the line also. I'll post a pic of mine tonight!