driving down the highway today in 5th gear about 60mph my truck just lost 5th like i was in neutral now it goes into 5th without even stepping on the clutch..... i see its time for a rebuild but what happened?

 

The nut holding 5th gear on has come loose. You may not even need a rebuild. I suggest a little bit of searching as this has been covered many, many times.

 

not too hard to fix lots of post here on how to fix it

 

sweet thanks guys ive been building jeeps for years and always get ragged on for not searching the forums before asking sorry guys

 

Put on the chrysler up date nut with set screws, lots of loc-tite and get the welder out and put a few tac welds on the nut and shaft, did my uncles at 150k, he has 340k on it now, did my 97 last year...........

 

I second that fix!

 

I got a NV4500 from a 2002, its getting ready to go in my truck, i was told it has the updated nut on it? I see no set screws on the nut, should i just tack weld it to the shaft?

Dave

 

i just ordered the nut with set screws and locktite im either gonna weld it as well or put the old nut on as well behind it.....

 

Is there some way to tell if you have a splined shaft ? I thought that it was the fix for this problem.

 

I've been through this 3 times. The dodge nut fix is crap. Best fix is a heliarc weld all the way around the nut. Can be done in the truck. Only need to pull off the tail shaft housing, drive shaft , etc.. The tail shafts are an aloy steel. Best to weld them with 308 stainless wire with TIG. An afternoon fix.