48RE transmission issue

[compmc]

He doesn't know what he's talking about.



The '06 was the first Dodge automatic ever that was built from the factory with the ECM, PCM, and 48RE all communicating and ready from the factory for installation of a Jacobs Exhaust Brake. I ordered an '06 with 48RE and Jacobs Exhaust Brake from the factory in late '05 and took delivery in early '06. The Jacobs Exhaust Brake was listed on the MSRP sticker but was still in the box behind the driver's seat for dealer install.



My own mechanic friend installed it for me. All that was required was to bolt it in and connect the harness. It was activated by a switch zip-tied to the shift lever but was fully integrated with the truck. When the driver backed off the throttle pedal the EB was activated then as the truck slowed, the ECM/PCM deactived the EB briefly, blipped the throttle, downshifted to third direct, and reactivated the exhaust brake.



The '07 was also ready for the EB but '05 and earlier were not. An aftermarket method to lock the torque converter and keep it locked while the exhaust brake is activated must be installed or the 48RE will be destroyed quickly.

Thats what I thought, and the main reason I bought an 06' with a 48RE and then added the jake EB. I am having issues with the billet, low stall, 3 disc T/Q not surviving, and I assume it's failure is due to the E/B or how it is applied, and I would like to learn how to help the system perform with more dependability.

Thanks for the confirmation!

 

[HBarlow]

One of the small number of performance or towing MOPAR automatic transmission builders known and patronized by TDR members can easily build one that will hold up for years towing heavy fivers. The closest one to you would be DTT (Diesel Transmission Technology) in Abbotsford, BC, Canada. Look at their website or call them.