14 bolt spindle thread problem - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Americanrider · 12-05-2006, 10:53 PM

I munched a outer bearing on my 1985 K30 this past weekend. Upon removing the spindle retaining nut and what was left of the bearing race I damaged some threads on the spindle. Now I need to find out what the thread size is so I can find a thread die and clean them up.

After looking through the Pirate4x4 tech site [The 14bolt bible] all I found was this pic and the outer dia. I have tried to clean the threads with a thread file but they need more help before I can put another spindle nut back on.

**kwmech** · 12-05-2006, 11:23 PM

The threads are 2'' by 16 threads per inch. Dorman numbers 615-130 for the nuts and 618-048 for the inner washer and 618-049 for the lock washer

Americanrider · 12-05-2006, 11:34 PM

Super, thats what I needed. Thank You!

LONGHAIR · 12-06-2006, 07:16 AM

It is pretty doubtful that you will find a die for this thread. The only thing I have ever seen (and what I always used) was a chasing tool that looks kind of like a C-clamp. It is curved on the anvil end and holds a flat insert that has the thread count that you need. These tools come as a kit that contains several different thread pitches and are adjustable to a wide range of diameters. Because of the key way you cannot rotate it like a traditional die, so you just work it back and forth from that point. They work very well.

This is not the one I have used, but the concept is similar.
http://buy1.snapon.com/catalog/item....re&dir=catalog

**kwmech** · 12-06-2006, 10:18 PM

I've got dies that large--bought them off the MAC tool truck, they are made specially for just this situation

454_72_4X4 · 12-15-2006, 12:58 PM

If the threads are not too bad you can make a thread cleaner out of one of the original nuts. Just cut a few "slots" across the threads with a hacksaw.
(Kind of like the keyway in the axle tube except narrower).
I've had to do this on a few different things when I didn't have access to a die.

If ya want to get fancy you could also heat treat it to harden it. \I don't know much about that though, (yet).

Americanrider · 12-16-2006, 04:59 PM

After about 2 hours of careful work I restored it with a thread file. The Snap-On website sells a thread die made for this axle, it's 2"x16 NSF and cost about $19.
I spent $13 on a new 8-way thread file from KND tools.

12-05-2006, 10:53 PM	#1
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	14 bolt spindle thread problem I munched a outer bearing on my 1985 K30 this past weekend. Upon removing the spindle retaining nut and what was left of the bearing race I damaged some threads on the spindle. Now I need to find out what the thread size is so I can find a thread die and clean them up. After looking through the Pirate4x4 tech site [The 14bolt bible] all I found was this pic and the outer dia. I have tried to clean the threads with a thread file but they need more help before I can put another spindle nut back on. Attached Images Last edited by Americanrider; 12-05-2006 at 11:33 PM.

12-05-2006, 11:23 PM	#2
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,628	Re: 14 bolt spindle thread problem The threads are 2'' by 16 threads per inch. Dorman numbers 615-130 for the nuts and 618-048 for the inner washer and 618-049 for the lock washer

12-05-2006, 11:34 PM	#3
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	Re: 14 bolt spindle thread problem Super, thats what I needed. Thank You!

12-06-2006, 07:16 AM	#4
LONGHAIR just can't cover up my redneck Join Date: May 2004 Location: Columbus OH Posts: 11,414	Re: 14 bolt spindle thread problem It is pretty doubtful that you will find a die for this thread. The only thing I have ever seen (and what I always used) was a chasing tool that looks kind of like a C-clamp. It is curved on the anvil end and holds a flat insert that has the thread count that you need. These tools come as a kit that contains several different thread pitches and are adjustable to a wide range of diameters. Because of the key way you cannot rotate it like a traditional die, so you just work it back and forth from that point. They work very well. This is not the one I have used, but the concept is similar. http://buy1.snapon.com/catalog/item....re&dir=catalog

12-06-2006, 10:18 PM	#5
kwmech Senior Member Join Date: Mar 2003 Location: Colfax-California Posts: 8,628	Re: 14 bolt spindle thread problem I've got dies that large--bought them off the MAC tool truck, they are made specially for just this situation

12-15-2006, 12:58 PM	#6
454_72_4X4 Registered User Join Date: Apr 2004 Location: N.E. MO Posts: 1,749	Re: 14 bolt spindle thread problem If the threads are not too bad you can make a thread cleaner out of one of the original nuts. Just cut a few "slots" across the threads with a hacksaw. (Kind of like the keyway in the axle tube except narrower). I've had to do this on a few different things when I didn't have access to a die. If ya want to get fancy you could also heat treat it to harden it. \I don't know much about that though, (yet). __________________ 72 C20 4X4 454 4 speed 89 Trans Am (was) 305 TPI 700r4 93 C1500 2wd Extended cab 350 700r4 98 Sonoma (TPI outa the Trans Am) 03 Yamaha 660 Raptor 03/04 660 Raptor 07 700 Raptor 85 Honda Odyssey

12-16-2006, 04:59 PM	#7
Americanrider Registered User Join Date: Dec 2004 Location: NW, WA. Posts: 1,421	Re: 14 bolt spindle thread problem After about 2 hours of careful work I restored it with a thread file. The Snap-On website sells a thread die made for this axle, it's 2"x16 NSF and cost about $19. I spent $13 on a new 8-way thread file from KND tools.

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