Got a 95 dodge ram 1500 5.2l 4x4 with the nv3500 transmission(manual) anyways my truck has a grinding noise only when the truck is under load it doesnt seem to happen
in first gear... in second gear is were is kinda starts with a subtle noise of grinding then when im in 3rd 4rth and 5th you can hear the grinding good. also the longer i drive the truck it seems to get louder when its warmed up.

Things i have done so far...

changed the tranny fluid(synchromesh)

changed the transfer case fluid (ATF+4)

changed rear drive shaft u joints.



things i havnt tried is checking the CAD(center axle disconnect) vacuum. 4wd light does turn on though when i put in 4wd (probably gonna get a posi lok even if that not the issue just good to have).

I noticed some other forums said it might be something in the trasfer case like some sort of snap ring.... havnt checked if its broke.

maybe its just a bad tranny? or bad transfer case?


If you guys have any ideas that might help it would be great i really want to get rid of this grind. i know its hard to diag over a forum but i appreciate any advice given!

 

Did you check the fluid in the rear axle?

 

Thanks for reply and yes the fluid is good in the axle. The grinding I'm almost positive is coming from front of truck but sound tends to travel I havnt checked front dif fluid

 

5th gear nut coming loose?