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Unread 11-21-2014, 03:37 PM   #1
Brains72
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Trailer hitch mod

Just got my new 265/70/17 tires and got a used one to put under for the spare. I know I need to mod the hitch and I saw some that used carriage bolts as a replacement and then cut down the receiver tube.
Is this ok if I plan on using the hitch to tow a 5k lb trailer with a weight dist hitch
Do they make grade 8 carriage bolts?
Thanks in advance
Ed

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Unread 11-21-2014, 03:39 PM   #2
JeepN4KC
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My hitch is cut back (modded) and I've towed many times with the load you are looking to pull.

It's fine.
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Unread 11-21-2014, 04:18 PM   #3
Brains72
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Thanks
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Unread 11-21-2014, 04:18 PM   #4
luckyse7ens
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Yup The Bison build has been done this way.

http://www.jeepforum.com/forum/f67/o...l#post12793004

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Unread 11-21-2014, 08:32 PM   #5
TangoTango
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Carrage bolts are not graded, no way would I use them. Better to cut off the bolts and the hitch.

I just did the mod and it is easiest if you remove the bumper.. and the hitch .. cut the hitch and put it back. You have to buy 4 for those pop revets.

Towed a boat down south.. 6 hour drive on the new 265-70-17. Mileage dropped to 11 mpg running hard and fast.
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Unread 11-21-2014, 11:22 PM   #6
Chirpz
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Quote:
Originally Posted by TangoTango View Post
Carrage bolts are not graded,
Ditto.... NO carriage bolts..... ever, on a hitch or anything that requires strength. Bolts must be hardened steel..... grade 8. I had a hitch break once this very reason.... fortunately it fell off just as I pulled up to a stop sign.... sort of a miracle really. And the stop sign was next to a hardware store. That's when I learned about hitches and grade 8 bolts.
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Unread 11-21-2014, 11:27 PM   #7
CavallinoRed
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You may not be able to find grade 8 carriage bolts at Home Depot but they're easy to find online.

But does bring up a good point to use a quality bolt for this application.
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Unread 11-24-2014, 01:17 PM   #8
luckyse7ens
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Quote:
Originally Posted by CavallinoRed View Post
You may not be able to find grade 8 carriage bolts at Home Depot but they're easy to find online.

But does bring up a good point to use a quality bolt for this application.
I hadn't realized they were so difficult to find locally. I had seen them available online.
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Unread 11-24-2014, 05:52 PM   #9
TangoTango
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the bolt number pictured above is 807A which is not graded, it is a zinc covered one.
anyways .. cutting them down works .. but then the rear 4xguard skid plate doesn't fit.
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Unread 03-05-2015, 01:33 PM   #10
jd0110
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For those that have done this with the hitch on the vehicle, how tough was it? Was it just a matter of using an angle grinder? Appreciate everyone's insight. I've just now gotten my 265/70/17 spare and it absolutely won't fit with the hitch as it sits.
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Unread 03-05-2015, 07:12 PM   #11
jd0110
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Well, my buddy convinced me to just use a reciprocating saw with a good metal blade. This worked great for the hitch while still mounted. I did get a little crooked, so started back in from the other side which left a bur that I needed to file down. So not as pretty as others, but certainly was effective. Next is to cut the bolts, but the blade I used for the hitch is seemingly dull now and isn't cutting the bolt so well. Tomorrow I plan to buy a new blade to finish the bolts. I'm still not certain this new 265/70 BFG is going to go in without some help after doing the bolts. I'll update soon...
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Unread 03-09-2015, 06:40 AM   #12
jd0110
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Quote:
Originally Posted by jd0110 View Post
Well, my buddy convinced me to just use a reciprocating saw with a good metal blade. This worked great for the hitch while still mounted. I did get a little crooked, so started back in from the other side which left a bur that I needed to file down. So not as pretty as others, but certainly was effective. Next is to cut the bolts, but the blade I used for the hitch is seemingly dull now and isn't cutting the bolt so well. Tomorrow I plan to buy a new blade to finish the bolts. I'm still not certain this new 265/70 BFG is going to go in without some help after doing the bolts. I'll update soon...
I was able to easily cut the bolts with the new blade. Wow, this is still a really tight fit. I got the spare in there, but not convinced it's seating 100%. The tire surely folds my wire harness over tight on the hitch, and it's now hitting on the heat shield. Definitely didn't fit as easily as I'd hoped from my research. Really appreciate all the insight from this thread as well others thus far as I couldn't have gotten this far with all my mods without them. Thanks!
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