Quote:
Originally Posted by JK07
Buy the trany from aev bec they are diesel auto 545rfe tranny not dodge petrol tranny. If you have already paid the coins just pay some extra and get the diesel 545 tranny beefed up
Thats also one of the reasons why aev only sells 5.7 hemi do some more digging i am sure u will find a stronger tranny
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Agreed. This would be your best bet. If you do some serious research and reading on what's happening in the States, they've had plenty that are failing with 6.1's, 6.4's and 7.0ltrs.
Something to think about - if Jeep thought the 545RFE was good enough to put behind the 510Nm CRD Merc engine in the WH, they would have used it. Instead they chose the Merc's W5A580 because of its strength and reliability.
They also chose to use it behind the 6.1lt SRT8's for that very reason - 545RFE can not handle that power or torque reliably.
They did however use the 545RFE behind the 5.7 Hemi WH's because not only were they 500Nm but they dont have the massive surge of Torque that hits you in the back like the CRD delivers. The 5.7lt is a gradual surge that has a peak high up in the rpms so much less strain on the Auto.
Food for though.
There are afew people going down the road of installing or trying to at least, install the W5A580 Mer box, good for a factory quoted 788Nm or 580Foot pounds of torque. Yum Yum.
