1996 rt/10 Differential ratio change

sheppga1

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Hi there

Looking to change my 1996 rt/10 diff ratio. Where is the best place to buy a crown wheel/pinion and rebuild kit?
Thinking to go 3.55 or 3.73
Had anyone done either of these ratio changes?

Cheers
 

MoparMap

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You might ask or search down in the RT/10 - GTS forums below. I think I've seen that topic come up several times there, but I don't recall any brands off the top of my head. The name Unitrax comes to mind, but I think they are more halfshafts and carrier unit swaps, not necessarily rings and pinions. I know Yukon seems to be fairly well regarded as well in the differential world, but don't know if they carry the Viper parts and I just noticed you're not based in the States, so not sure what availability or shipping would be like.
 

littlecaars

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I put 355s in two of my past Viper‘s. A gen2 and a Gen 3. I was satisfied both times. My thoughts on the 373 would be really poor gas mileage and top end would suffer too much. The first one I bought the ring and pinion from Viper Parts and the second I bought just a standard ring and pinion for a Dana 44 rear. No noticeable difference.
 
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sheppga1

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Thank you for you reply. 355 definitely seems the way to go. Where did you get the Dana 44 from? I see these on ebay a lot.
 

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