kjfishman wrote:
oldnavy wrote:
kjfishman wrote:
I had the same transmision on my 02 gas KJ and it was rock solid. It is a good trans. The only big issue is the early production they put the wrong filters in and now have a service bulliten covering it. It is as good or better than anything Ford or Chvy has to offer. Except maybe the Allison trans you can get with GM Duramax diesel.
As far as I know the current 545RLE was never in the Liberty until '05 CRD came out, but I could have been told wrong.
The early production Liberty's all had the 45RLE , then they started putting in the lighter duty 42RLE. in early 03 production.
The heavy transmission made it's way back for the CRD. The only thing different from the Dodge truck version is how they programed the transmision. In KJ's it had 4 speeds an alternate 2nd gear. I think in theory it could be reprogrammed to a 5 speed. Anybody tried that yet????
That is the way the CRD tranny is used, it has two second gears. One is used when shifting up through gears and and a different gear when down shifting, allowing for a smoother down shift. The CRD uses the 545RFE and it is a different tranny then the 45RFE. That said they all have their parantage in the tranny used in early FWD Caravan/Voyager A604, the R just means rear wheel drive version. These trannys would have been called a 6sp tranny by any other mfg and 45RLE tranny was made to select either one of the 2nd gears depending on throttle response, but the 545RFE I believe does not have the same option and also has a second filter that the 45RFE doesn't have. Both are full electronic trannys and have been overall very reliable, but when you have a problem with one and it chews a a gear or disk up then you have a real problem and will probably never get all the junk out of all the little passages in the transmission and have failure after failure till full replacement is done from what tech's have told me. Also I think the TQ is bigger or heavier duty in the 545RFE then the 45RFE.