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 Post subject: Transmission ratio
PostPosted: Sat May 09, 2015 11:02 am 
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Location: Helena MT but can be found in Esmerelda NV.
Hello,

I was curious if anyone knew the ratios our transmission uses? It it the same as the gas hemi's? I would not think so, but I was told otherwise.-Erick

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 Post subject: Re: Transmission ratio
PostPosted: Sat May 09, 2015 11:35 am 
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All 545rfe transmissions use the same gear ratios.
Doesn't matter what engine they are attached to.

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 Post subject: Re: Transmission ratio
PostPosted: Sat May 09, 2015 12:02 pm 
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Location: Helena MT but can be found in Esmerelda NV.
Awesome! That is really nice to know that there are many transmissions out there for our fairly rare jeep.

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 Post subject: Re: Transmission ratio
PostPosted: Sat May 09, 2015 12:13 pm 
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Yup, 545RFE is very common in junkyards from WJs.......

But they do not show interchange, so I wonder what the differences are.....

Someday I might have to dig into the part numbers from the fiches and see what is different between them.

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 Post subject: Re: Transmission ratio
PostPosted: Sun May 10, 2015 8:48 am 
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Location: Helena MT but can be found in Esmerelda NV.
That would be interesting to know if it is possible to obtain a donor from a WK. I wonder why the dodge 1500's swap?(question from a guy who has never swapped one lol)

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 Post subject: Re: Transmission ratio
PostPosted: Sun May 10, 2015 8:53 am 
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I think the only diffdrence is in the transfer case mounting.
You will most likey have to still use your KJ transfer case and swap it onto the trans.

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 Post subject: Re: Transmission ratio
PostPosted: Sun May 10, 2015 12:39 pm 
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flash7210 wrote:
I think the only diffdrence is in the transfer case mounting.
You will most likey have to still use your KJ transfer case and swap it onto the trans.


I dont know about the WK or WK2, but the WJ uses the same transfer case mounting and the transfer cases are interchangable.

I have seen a number of WJ transmissions in the junkyard and externally cannot tell a different, all the electrical plugs, belhousing, trans mount, and transfer case side appear the same.

I had been assuming the gearing inside was different, but if thats really true that they are the same I should be able to use a common WJ trans to replace mine.

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 Post subject: Re: Transmission ratio
PostPosted: Sun May 10, 2015 1:39 pm 
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See recent swap at viewtopic.php?f=5&t=82005

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 Post subject: Re: Transmission ratio
PostPosted: Sun May 10, 2015 10:44 pm 
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papaindigo wrote:
See recent swap at viewtopic.php?f=5&t=82005



Thanks for the link, thats very good info. With the older transmissions you could not remove the output shaft and bolt up a transfer case.

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