tedlovesjeeps71 wrote:My dodge lost 5th gear and when I learned why it was a real wtf moment.
You'll have to check yours to make sure it didn't "hourglass" the gear/shaft. Which fix design you going with?
Where does the shaft hourglass? I guess I can imagine the gear teeth hourglassing. Everything looked really clean in there and the teeth look really good. This is probably why I picked this tranny up for only $300... one of the spanner slots is really mushroomed so I figure the previous owner must have tried to retighten it with a chisel or something and decided to cut his losses the second time around.
This is the only fix I have found so far for a 32-spline Chevy.
https://www.amazon.com/NV27134M-NV4500- ... +nut+Chevy
There seem to be hundreds of fixes for 27-spline Dodge NV's.
My other thought is to machine a donut that is a light press fit over the splines, takes up the "space" between the spanner and the 203 input. The press fit would keep the donut from free spinning so everything would turn together, output shaft, spanner, donut and 203 input. With the cost of these kits, this might just be the way I will go.
SJTD wrote:Anyone have a link for info on this? I've got a NV4500 in the Wag with a Dana 300. Haven't put oil in it yet so if I need to fix something now's the time. As I recall that nut took 400ish ft-lb. Had to make a big spanner adapter for my torque wrench.
Also have a Diesel truck with 200k and no problems yet.
Did you get that torque spec out of a rebuild manual or something? Did you use a torque multiplier or do you weigh 400lb-ish?
I still wouldn't trust that the torque on the nut would keep everything kosher through it's useful life. Obviously, if there is this much of a problem with these trannys AFTER they were factory spec'd and released, I wouldn't trust their specs any further than I could throw them. The good news is that you don't necessarily need to take the tailhousing off to put a "fix" on, just the transfer case. Google/YouTube will turn up tons of info on the fixes.