Looking for a good performance 45rfe replacement trans

[lastgoodusername]

My ****** is one her last legs. Looking for a replacement with maybe some performance upgrades. Any recommendations? Thanks, Johnny

 

[LibertyTC]

Jasper transmissions have a few build levels. Stock, Authentic & Performance.

 

[jeeptorino68]

Add the Transgo shift kit, and line pressure sensor for a mild build.

 

[04Liberty]

No such thing as a "performance build" RFE lol...so many companies have tried to increase clutches, shift kits, etc etc and in the end it doesn't matter one bit. You can upgrade hard parts but the real problem is the programming.

 

[lastgoodusername]

Jasper transmissions have a few build levels. Stock, Authentic & Performance.

Thank you

 

[lastgoodusername]

Add the Transgo shift kit, and line pressure sensor for a mild build.

Thanks for the info

 

[lastgoodusername]

No such thing as a "performance build" RFE lol...so many companies have tried to increase clutches, shift kits, etc etc and in the end it doesn't matter one bit. You can upgrade hard parts but the real problem is the programming.

Thanks for the reply

 

[turblediesel]

No such thing as a "performance build" RFE lol...so many companies have tried to increase clutches, shift kits, etc etc and in the end it doesn't matter one bit. You can upgrade hard parts but the real problem is the programming.

Green Diesel Engineering, GDE, does a trans tune for the RFE on the Liberty CRD. Maybe there's a 3.7 version.

 

[04Liberty]

Green Diesel Engineering, GDE, does a trans tune for the RFE on the Liberty CRD. Maybe there's a 3.7 version.

Do they tune out 2P from kickdown? That's one of the biggest issues, 2P uses the same clutch set as OD (and of course it's the weakest set in the case).

 

[turblediesel]

I don't have the smarts to answer your question. I think GDE offers two tunes for the liberty CRD RFE, one is for towing.

64 Square feet frontal trailer area is all that's allowed for the liberty CRD in addition to the 5000# trailer limit, GVWR, and overdrive isn't allowed.