Is anyone using a cast iron tail housing on their nv4500 swap? - Dodge Cummins Diesel Forum
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Old 07-28-2011, 12:40 AM   #1 (permalink)
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Is anyone using a cast iron tail housing on their nv4500 swap?

I read a few articles about the cast iron housings being defecting with a bad boring job where the bearing retainer was interfering. However this was only with the np241 transfer cases in the 94-97s. Im tired of seeing little fluid spots everywhere i park from the cracked housing i have along with the fact that no matter how many times or how much RTV i use i cannot get the dang thing to seal at the very bottom. So I need some feed back from those using a np205 with the cast iron housing.
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Old 07-28-2011, 07:51 PM   #2 (permalink)
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I just bought one for my truck. Can't tell you anything good or bad just yet. Took it out of box today and painted to match the tranny. Hopefully bolt it up tommorrow!! From just comparing it to the old one it seems like it will be better quality seems to be cnc machined and a lot heavier!!
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Old 07-28-2011, 09:30 PM   #3 (permalink)
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I have the cast iron rear housing. I did my swap three years ago and havent had any issues. Knock on wood Here is a pics of mine when I first did the swap. And yes I did install new poly bushings the correct way for the crossmember mounts. I got in a hurry and didnt pay attention when I installed the rubber ones the wrong way.
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Old 07-28-2011, 09:56 PM   #4 (permalink)
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Where did you get yours?? I happened to run across a fellow on ebay selling them dont know if he has a store or what. Heres the one i got..NV4500 5 speed transmission tailhousing Dodge 4X4 NEW | eBay
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Old 07-29-2011, 06:14 PM   #5 (permalink)
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^it was on the tranny when I purchased it from TX. Sorry I couldnt point you in a good direction.
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Old 07-30-2011, 08:56 PM   #6 (permalink)
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I'm using one on my 4500/205, although it's Chevy stuff. Got it from a guy that's on Ebay...Jr Jeep Parts or something. Sells a lot of NV4500 setups with transfer cases for all sorts of different applications. Knows his stuff and gave me some good specifics on the machining processes he did to clear the shift rails and such. I think it was like 160 bucks and I haven't had a minutes trouble.
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