what size of tranny in 01

[wagntagn]

For all the years I owned my 2001 2500 cummins I taught I had a 47re  but our tranny specialist at home told me they're all 48re in 2001?

[diesel4life]

Find you another specialist!

Even some early 3rd gen CR engines had a 47RE, but for the most part the 48 series came into play in 03 when Cummins went to CR.

[mulcher812]

It's always been my understanding that the 48re was put into trucks from 2003 - 2007. I know in 2008 they went to the 68rfe.

[wagntagn]

Thanks guys,I guess I'll have a talk with my tranny specialist ?

[flagmanruss]

I kept the build sheet on my 01.5 & it is 47RE. 

[CTcummins24V]

Chech the linkage on the tranny, driver's side. If there are cables and metal brackets it's a 47re, if there's a big plastic box it's a 48re. Behind the bell housing and over the tranny pan.

[Wild and Free]

Second gen autos were 47RH behind 12V and 47RE behind the 24v, early 03 third gens had 47re yet too, buddy of mine has an early 03 with a 47RE. 48RE came in 03 in the third gens.

[MnTom]

The 47RH was used up until the 1995 model year and the 1996 to 2002 trucks have the 47RE. You really need to rethink your tranny guy's abilities.....

[CTcummins24V]

Agreed ^ I have a 2001.5 (four wheel disc brakes) with a 47re

[Wild and Free]

The 47RH was used up until the 1995 model year and the 1996 to 2002 trucks have the 47RE. You really need to rethink your tranny guy's abilities.....

Thanks Tom, I knew the 12V had switched to the RE before the 24v came along just didn't know the year of the switch.

[MnTom]

You're welcome, Bill. My truck is an early '96 and it is the first year of the REs. My 'problem' with it is the software to run it. A lock up switch won't work on mine unless I get the PCM reflashed..........

[wagntagn]

Talked to the specialist and mentioned they're almost the same ,should I ask him to set up the lock up switch?For sure I'll hook up a temp sensor what is the best set up for the temp sensor

[98whitelightnin]

Lockup switch takes 20 minutes to hook up and 15 is just running wires under the carpet.

[MnTom]

Talked to the specialist and mentioned they're almost the same ,should I ask him to set up the lock up switch?For sure I'll hook up a temp sensor what is the best set up for the temp sensor

I had heard that before, but not any first hand knowledge. Defineately do the lock up. If you ever put an exhaust brake on you will need it.

[wagntagn]

How do you wire up the lock up switch?Where is the best spot to set up a temp gauge?

[MnTom]

Here are the directions for installing a lockup switch: http://www.tstproducts.com/Torque%20Converter%20Lockup%20Switch.pdfFor a temp sensor you could use this: http://www.genosgarage.com/prodinfo.asp?number=ACUTEMP_ADAPTER but in my opinion you should use the hot line out of the transmission like this one: http://www.carid.com/dorman/fixed-auto-trans-oil-cooler-hose-assembly-mpn-624-352.html?gclid=CMvb4KbYycMCFYgAaQodvxgAvg

[wagntagn]

Thanks Mn Tom !!

[MnTom]

Thanks Mn Tom !!

You are welcome, Sir!

[Dynamic]

Chech the linkage on the tranny, driver's side. If there are cables and metal brackets it's a 47re, if there's a big plastic box it's a 48re. Behind the bell housing and over the tranny pan.

The early 48RE's used a TV cable just like the 47RE. In '04.5, they started using the TTVA on the 48RE.