LOST JEEPS :: View topic - re-tap hitch bolt holes?

I had that problem the outher day and we enden up using a 45 cal bore brush to clead it,with a lot of wd40. Just a though. good luck

The thread is 12mm x 1.75.

Skipperb wrote:

I had that problem the outher day and we enden up using a 45 cal bore brush to clead it,with a lot of wd40. Just a though. good luck

i tried that w/wd40 and even tried some goof off (it made sense at the time) and then tried chasing the threads w/no luck

tulsa wrote:

The thread is 12mm x 1.75.

is that a tap size that i could find at a home depot or is that a special size? ( i'm not too familiar w/metric)

Any hardware store should have that size and I do not see why Home Depot wouldnt have it. :wink:

Bought the tap at Sears hareware, I think it was aroung $4.

I just installed a hitch over the weekend in my 05 sport. The hitch I bought came with M12x1.75 bolts, but they didn't fit. I had to go to the hardware store and buy 7/16-20 bolts. So I guess they changed them for 05??

Callaway, I hope you didn't spend the $30 for the tap. The "Do it Best" hardware where I live has them for $10.

everything went smoothly and i got all the bolts in EXCEPT the last one on the muffler side. the exhaust pipe was in the way and i could neither re-tap it not get a ratchet in there to start the bolt.
the other 5 bolts are all in a torqued to 70 ft lbs. should i worry much about that last bolt i couldn't get in?

Author:	callaway [ Wed Jan 10, 2007 11:51 pm ]
Post subject:	re-tap hitch bolt holes?
after 3 years of driving around the threaded holes for my hitch bolts are corroded and need to be re-tapped before i can secure my hitch. i assume these are metric threads. can i buy a tap this large or is this something i need to have a shop re-tap?

Author:	lucas/liberty [ Thu Jan 11, 2007 1:35 am ]
Post subject:
check out mcmastercarr.com or other industrial tooling place.............

Author:	Jeger [ Thu Jan 11, 2007 6:11 am ]
Post subject:
If you just want to run a tap through to clean the threads up I dont see why you couldnt find a tap that size. Tractor supply, Sears, Lowes, Home Depot, Ace Hardware, and even Places like Big lots might have a tap that would work for you. Sorry dont know what the size would be. Of course a shop would probably run a tap through them for less than the price of the tap.

Author:	Skipperb [ Thu Jan 11, 2007 9:07 am ]
Post subject:
I had that problem the outher day and we enden up using a 45 cal bore brush to clead it,with a lot of wd40. Just a though. good luck

Author:	tulsa [ Thu Jan 11, 2007 9:45 am ]
Post subject:
The thread is 12mm x 1.75. Be sure to get a through tap, not a bottoming tap and clean the threads carefully. Dirt is the threat to the tap not rust. Use plenty of oil and back up about every 1/2 turn forward if you meet resistance. The thread information can be confirmed by downloading your hitch installation instructions. Lewis

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Author:	callaway [ Thu Jan 11, 2007 10:12 am ]
Post subject:
Skipperb wrote: I had that problem the outher day and we enden up using a 45 cal bore brush to clead it,with a lot of wd40. Just a though. good luck i tried that w/wd40 and even tried some goof off (it made sense at the time) and then tried chasing the threads w/no luck tulsa wrote: The thread is 12mm x 1.75. is that a tap size that i could find at a home depot or is that a special size? ( i'm not too familiar w/metric)

Author:	Jeepjeepster [ Thu Jan 11, 2007 10:59 am ]
Post subject:
callaway wrote: Skipperb wrote: I had that problem the outher day and we enden up using a 45 cal bore brush to clead it,with a lot of wd40. Just a though. good luck i tried that w/wd40 and even tried some goof off (it made sense at the time) and then tried chasing the threads w/no luck tulsa wrote: The thread is 12mm x 1.75. is that a tap size that i could find at a home depot or is that a special size? ( i'm not too familiar w/metric) Any hardware store should have that size and I do not see why Home Depot wouldnt have it. My threads were alittle tight when I put my hitch on, but I didnt need a tap. I keep the underbody of my jeep fairly clean though.. And it wasnt as old at the time.

Author:	callaway [ Thu Jan 11, 2007 11:03 am ]
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Jeepjeepster wrote: Any hardware store should have that size and I do not see why Home Depot wouldnt have it. thx. I'll give it a look at lunch

Author:	tulsa [ Thu Jan 11, 2007 11:49 am ]
Post subject:
Wholesale Tools of Harbor Freight might also be a good place to look, you will be well advised to use a .45 or .40 cal. bore brush to clean the nut first. Remember it only takes 60-65 ftlbs of torque to snug the bolts, read the mfgs instructions.

Author:	Wahoo650 [ Thu Jan 11, 2007 3:23 pm ]
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I had to tap mine last year. Bought the tap at Sears hareware, I think it was aroung $4. I used a 1/4" socket on a long extension and ratchet, worked great. Spray well with wd-40 before you start.

Author:	callaway [ Thu Jan 11, 2007 7:14 pm ]
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Wahoo650 wrote: Bought the tap at Sears hareware, I think it was aroung $4. i went to home depot at lunch today and they didnt have the size tap i needed. so i went to autozone and found the correct size tap for $29.99 silcone spray also works wonders when tapping metal/plastic

Author:	struggle07 [ Thu Jan 11, 2007 10:32 pm ]
Post subject:
I just installed a hitch over the weekend in my 05 sport. The hitch I bought came with M12x1.75 bolts, but they didn't fit. I had to go to the hardware store and buy 7/16-20 bolts. So I guess they changed them for 05?? Callaway, I hope you didn't spend the $30 for the tap. The "Do it Best" hardware where I live has them for $10.

Author:	callaway [ Thu Jan 11, 2007 11:51 pm ]
Post subject:
struggle07 wrote: I just installed a hitch over the weekend in my 05 sport. The hitch I bought came with M12x1.75 bolts, but they didn't fit. I had to go to the hardware store and buy 7/16-20 bolts. So I guess they changed them for 05?? Callaway, I hope you didn't spend the $30 for the tap. The "Do it Best" hardware where I live has them for $10. i went and returned the $30 set and went to Menard's where i found a $7 one. everything went smoothly and i got all the bolts in EXCEPT the last one on the muffler side. the exhaust pipe was in the way and i could neither re-tap it not get a ratchet in there to start the bolt. the other 5 bolts are all in a torqued to 70 ft lbs. should i worry much about that last bolt i couldn't get in?

Author:	tulsa [ Fri Jan 12, 2007 9:27 am ]
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My 05 sport used 12x1.75, I wish DC and others would make the switch to metric totally.

Author:	TheJawsOfDeath [ Sun Jan 14, 2007 4:35 pm ]
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The last bolt on the passenger side under the exhaust pipe is a pain. Since my mom never tows anything and she has an 05 CRD, she just let me swap the hitch from hers to my 06. I took the passenger rear wheel of her jeep to get the bolt started, stupidly, after which point I realized that there's enough play in the exhaust you can just have another person reach behind the tire and pull it out of the way.

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Author:	RFCRD [ Sat Jan 13, 2007 10:50 pm ]
Post subject:
callaway wrote: everything went smoothly and i got all the bolts in EXCEPT the last one on the muffler side. the exhaust pipe was in the way and i could neither re-tap it not get a ratchet in there to start the bolt. the other 5 bolts are all in a torqued to 70 ft lbs. should i worry much about that last bolt i couldn't get in? You can reach the last bolt using a universal while you push the exhaust pipe out of the way. It was a PITA but it can be done.

Author:	callaway [ Sun Jan 14, 2007 5:30 pm ]
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how much movement is there in that pipe? i had to retap the other 5 holes so i'm sure that that one is gonna need work as well. is there enough play to get the tap in there?

Author:	TheJawsOfDeath [ Sun Jan 14, 2007 5:43 pm ]
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An inch of movement at maximum, I would say. I had no trouble getting the bolt in with my friend pulling the exhaust pipe to the side. I've never tapped out a hole before so I dont know how much clearance you will need for that. You could always detach the exhaust hanger to gain some more leeway.