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nv4500 4th gear chatter

5843 Views 7 Replies 7 Participants Last post by  2ndGenCummins_Buck
hey, i just finished a nv4500 swap in my 2001 dodge 2500 i rebuilt the transmission with an updated mainshaft and all new bearings and synchros, when i shift into 4th gear it is real loud chatter till it get to about 35mph to 40mph what could cause this i dont have the correct shift boot on it so it lets in some noise but it doesnt sound right, thanks
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My 99 Dually does that too. It's only in 4th gear. I went ahead and replaced the carrier bearing along with all 3 rear driveshaft u-joints and the chatter got a lot quieter. It's still there just a little bit though and I haven't been able to figure it out. :confused013:
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