urgent help!!

i need to find out what the thread size is on the front output shaft of the tcase. I kinda gummed up the threads and i need a new nut but the dealer wont have it until tuesday. I know its a 30mm nut but im not sure on the thread count

 

no one? i would really like to get my truck back on the road today. Do you even know where i can find this info, ive been searching since ive posted

 

Google it. That's the way I answer most of my questions. Sorry I can't be of any help...

 

Only thing I can tell you is see if you can find a thread gauge. It has something like teeth that fit into the threads until you find an exact match. There are standard and metric.

 

Best way is to get your hands on a tap & die set ( ). You might be able to fix the nut yourself or at least figure out the thread pitch using the measuring tool inside the kit. If the nut is too big for the set you may be able to find a thread file and fix the nut that way.

Here's a little direction.
http://www.familyhandyman.com/tools/automotive-tools/repair-damaged-nuts-and-bolts/view-all

Good luck!

 

You said you gummed up the threads; so, this probably not work...
But, places like NAPA, Home Depot or Lowes (either or both, forget) have boards where you can check the size and thread by taking the nut and screwing it into the female ends, until you find the match

That's how I found out what the skid plate nuts where, when I was lacking some of them

 

how many threads per inch? and post a picture of the damage maybe its salvageable.

 

Whatever it is make sure its the same grade..

 

Well there aren't many sizes it could be. You can always just spend the extra 33 cents for each one and give them all a try.

 

I googled for hours. I couldnt even find a replacement output shaft for my year. the only thing i found was a gear reduction from marlin crawler for pre 95 trucks.

the output shaft is at least 7/8" so finding a die that big is not easy, and plus it is the first couple threads on the shaft that are gummed up so i would have to use a thread file to be able to use the die first. and i it would take till the end of the week for someone to get the thread files in stock and i cant find anyone in orlando that would let me borrow there files.

yeah the nut is a 30MM nut and the shaft is about 7/8" they dont have threads that big on the boards.

I think ive been able to get it filed down to be able to use a good nut, but im waiting till tuesday when the dealer gets the nut in.

i wish it was only $0.33, the one that i bought was $4.19 and there wasnt any other pitch there that was close to what i had. I got a 7/8" 14 and i have a feeling its a 7/8" 16

 

There are only two possible thread pitches for a 30 mm thread. A fine pitch 2.0 mm and a coarse pitch 3.5 mm.

 

I'm gonna go with 2.0mm then, cause it doesn't look like coarse threads to me. Thank you for some insight

 

You ARE looking for a metric threaded nut, correct?

I would try the Motormite section at your local auto parts store. You might be able to find something meant for FWD car halfshafts that fit. Many of those nuts use 30, 32, 34 mm sockets and the inside diameter is probably also similar.

If you keep trying to thread a SAE nut onto a metric shaft, you'll mess it up even more.

 

Not sure but I have a feeling the OP means the hex measures 30mm, not the shaft diameter. OP, do you have a micrometer to measure the shaft. Did you use a 30 mm socket to remove this nut?

 

Agreed.

 

its a 30mm nut. I know the nut that i had bought was for 7/8" 14 threads. Im not saying the shaft is a 7/8" but it was pretty close, being that i could get it to catch the first few threads.

 

7/8" would be approximately 22mm (.875 x 25.4).

You need to find a METRIC nut approximately 22 mm (thread size). The outer hex size is almost always irrelevant and if you ask for a "30 mm nut" you will likely get something way too big. Fasteners are measured by their thread size, not the hex size. Again, I would try looking for a METRIC FWD axle nut as those are similar sizes and might work.

 

At this point I'm waiting in the nut from the dealer. I should have it Tuesday afternoon. I was trying to find the thread count so I could just buy a temp but so I can drive to work but at this point it's not worth it. But I'm still prob gonna have to find the pitch just incase I need a thread file for the output shaft.

 

I bought a tap and die set from Harbor Freight and it included a thread pitch guage. It should be a pretty common thread pitch so I'd imagine if you found a metric thread file, it would work. You can hold the thread file to an undamaged portion of the shaft to confirm. Just be very careful with the thread file and take plenty of time. You want to clean the threads, not damage them more.

 

yeah im kinda scared about using one, but if it comes down to it ill practice on on all thread first