Engine/Transmission (1998.5 - 2002) 47re to 48re parts...

[JamesL]

48re to 47re transmission parts...

http://www.transmissioncenter.net/dodge.htm



has anyone dealt with these people before? im looking at getting some parts for my trans build. seems like they have a lot of good parts to be had, definitely more breakdown on the list of parts involved then the other builders. i have talked to many of the major trans shops and just cant justify what they want for a built trans. i have a 47re/618 book on order and will study it majorly before i accomplish this feat. i will still order a valve body and converter from one of the big manufacturers but all the rest of the hard parts i will do myself. im not wanting this to be a trans war! i just wanted to know if anyone has dealt with this company and how is there customer service?



hopefully in the coming months i will have a pretty strong hybrid 47re/48re Oo.

 

[AFarmer]

Never heard or dealt with them but it looks like they've got everything you could want and them some.

 

[JCutter]

Ive never ordered anything from there but i have looked through there site and this company also http://www.bulkpart.com/. Then i was told about another company closer that was cheaper. Its name was WIT What ever It Takes. Sorry i cannot remember the phone number though.

 

[BWagnaar]

Hey James,

I have been thinking about the same transmission upgrade as you have. I bought my shift kit from them about a year ago, their customer service could use a little work. I was thinking about buying one of their kits, but it seems kind of spendy, and i dont want some of the items in the big kits. I haven't tried calling them to see if i could get the kit with out some stuff. But i found another site with a pretty good price on a "Performance" rebuild kit. It doen'st come with any hard parts but i was then going to buy the 48RE planetary gear set and maybe some other stuff to rebuild mine.

I have the ASTG repair manual and vid to guid me as well.



I believe the 48RE planetary set will work in the 47RE, i believe they use the same sun gear as well. What i'm still trying to figure out is if the direct drive and overdrive basket will work from the 48 in the 47, i've read that they are a little bigger and can hold more clutches. But i've also read that there are skinnier clutches that can work in the 47 so you get just the same amount as the 48 but with less rotating weight on the 48 parts.



I'm still trying to get a parts list together so i can build the perfect transmission for my truck, I'll post something if i find out any more. Also let me know if you know something i don't, thanks.

 

[BJMarshall]

I've bought quite a bit from them. I build a lot of 700's and 4l60e's and they have some great deals on stuff for them. The dodge stuff is a little spendy, but it is high from anybody. I got the billet servo from them as well as the billet accumulator piston and some other stuff as well as some stuff for the valve body. They also gave me some help when I wanted a little firmer 1-2 shift. I couldn't get any of the big name shops to help me out. They all just wanted me to buy a valve body.

I think most of the stuff they sell is made by Sonnax, and I would be willing to bet that most of the other shops use Sonnax parts as well.

The ATSG book is OK, but the factory service manual is much more detailed.

Check out the single sided clutch setup for the OD unit. It woks really well.

 

[BWagnaar]

Thanks for the info, where did you get the factory manual? I would assume from a dealer but is there a cheaper place?



Could you explane that single sided OD clutch? I was also confused on the amount of clutches and the thickness of the clutches that can be used. I saw on there a kit you could buy a 48re clutch basket that holds more clutches. But then i saw they have different size clutches that would let you run more of them... So whats better, thicker clutches or more clutches? Is 6 thicker clutches better than 6 thinner clutches??



Thanks

Ben Oo.

 

[BJMarshall]

You can download the 03 - 06 manuals from here in pdf format. THere are a lot of similarities between the 47re and 48re.

The single sided clutches are just that. They have friction material on one side and are bare metal on the other side where normally there is friction material on both sides of a clutch plate and the steels are bare on both sides. If you use a different backing plate, you can get 23 single sided plates in there.

6 thicker clutches is better than 6 thinner, but more thinner clutches is generally better than fewer thicker ones. This is only true to a point though. If the clutches and steels are too thin, they don't dissipate heat as well. I don't like to go much thinner than stock on the steels, but you can swap in thinner backing plates and snap rings to get more clutches in a drum.

 

[VIPERBLUELX]

They also gave me some help when I wanted a little firmer 1-2 shift.

what did you do to increase the 1-2 shift firmness?

 

[Bob4x4]

what did you do to increase the 1-2 shift firmness?

remove the accumulator

:-laf



Bob

 

[BJMarshall]

remove the accumulator

:-laf



Bob

While that will work, it may throw the timing of the 2-3 shift off some. All that takes place on the shift from 1 to 2 is the band applies. Blocking or discarding the accumulator spring will firm up this shift. During the 2-3 shift, the band releases and the forward clutch applies. Without the accumulator spring, the band releases faster than the forward clutch applies and then you could have a slight flare on the 2-3 shift.

I replaced the accumulator spring with a heavier spring. It was no exact science, as I used a valvespring from something. I also replaced the accumulator piston with a billet piston which has 4 rings and isn't plastic like the factory piece. I replaced the front servo with a billet piston with 4 rings and a seal on the pin, and I replaced the band strut with billet strut. I still wasn't perfectly satisfied so I drilled one of the exhaust holes in the upper separator plate out slightly. This made it perfect.

I wouldn't drill the hole until I did the other things just to make sure the problem wasn't leakage. I can send you a picture of where to drill. and what size I used.

Also remember that the the ratio change from first to second is twice as much as the ratio from second to third so the shift feel is not going to be the same.

 

[BWagnaar]

BJMarshall,

Have you built many trannies? Do you know of a good company to buy products from? You sound like you know your stuff.

 

[BJMarshall]

I've built a few. Not as many of the 4xrh/re variety, but they are growing. I buy most of my stuff for stock rebuilds from a transmission shop locally where I used to work. They use Raybestos clutches and steels and I believe the paper and rubber kits are from transtar. Lately, anything high performance I have been getting from PATC.