48RE - and smooth shifting (slipping ?? )

[CharlesKennedy]

ok



have 48RE - put in schaeffers 204 syn blend for the record at 33,000+ . . told someone its shifts alot smoother - still seems to have the 3/overdrive hard shift/etc... was told the smoother shift is NOT good and means the thing is slipping. .



the RPM's don't race up, the tires seem to grab. . But you know now that it's been a little while I can't really remember just know the old stuff acted once I have gotten used to the new ATF. . The question is anyone put AMSOIL/other in a 48RE and it responded by smoother shifting... this can't be the thing slipping?? (note: I may change to AMSOIL just in the trans just because it is full syn and not a blend and ATF-4 is full syn/etc... )



ps: I am not trying to flame the one that told me this but he does know the dodge trans and is is on another webpage and yes he is in the know!

 

[Diesel Nut]

Well, I'd have to say that if it shifts really smooth one of two things is happening. Either the clutches are engaing slowly and slipping a bit so you don't notice them as much, or your clutches are engaging at a normal rate and the tq converter is so loose (inefficient) that the conveter absorbs the shock. Neither is a good senario. The first because slippage means wear and heat, the second beacause that inefficient converter is killing you milage and power transfer. This why with a stock trans I tell my customers to drive in tow/haul when they have added boxes and downloaders and such. It shifts firmer and there is less slippage.

A quality Valve Body and Tq Converter would be a very good thing for you.

 

[CharlesKennedy]

I don't really know anymore... Guess I need to do a few things like drive another 2004. 5 48RE and maybe have that person drive mine and we can see. . also - don't know who to trust if I was to go to a dealer/******* and them take it a spin... After driving and "over analyzing" it - it does seem to still have the sound/feel going from 3 to overdrive - and still seems to have the feel in first to 2nd. . Now it feels different depending if I have a light foot or heavy foot, or if I am on falt ground, or going up ramps to the hightway. .



I just don't know anymore. .



I don't think there is a quality diesel shop in San Antonio that is real well versed in the dodge and 48RE trans like DTT or ATS. . I would take thier word without question. .

 

[raychem]

Call DTT I believe they have someone in texas just don't remember where.





Richard

 

[CharlesKennedy]

houston - most sure~