What are the hitch bolt sizes?

Bftfan

New member
I saw a thread on here a while back that listed the sizes for the OEM hitch and I can't find it! I picked up a used OEM hitch and need the mounting hardware. There are 8 total, 4 per side and they're 2 different sizes so I was just going to pick up some grade 8 bolts. I'm pretty sure the nuts are welded on the frame and I just need the bolts & washers. Any help is appreciated.
 
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The 8 larger bolts are M12 -1.25 x 45mm. The 4 smaller bolts are M8 – 1.25 x 25mm. Torque on the M12 is between 60 – 72 lbf-ft and the M8 is 15 – 20 lbf-ft. Be careful on the M8 bolts, I got a little aggressive on them and ended up stripping one out. I needed to re-tap it and fit a different bold. When they say 20 lbf-ft max, they mean it.

I tried uploading a Toyota install sheet for the GX470, same as the 4runner, but the pdf is a little to big to attached. If you want, PM me with your email and I will send you the install sheet.

(Corrected original post, there are 8 M12 bolts not 6)
 
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The 6 larger bolts are M12 -1.25 x 45mm. The 4 smaller bolts are M8 – 1.25 x 25mm. Torque on the M12 is between 60 – 72 lbf-ft and the M8 is 15 – 20 lbf-ft. Be careful on the M8 bolts, I got a little aggressive on them and ended up stripping one out. I needed to re-tap it and fit a different bold. When they say 20 lbf-ft max, they mean it.

I tried uploading a Toyota install sheet for the GX470, same as the 4runner, but the pdf is a little to big to attached. If you want, PM me with your email and I will send you the install sheet.

PM'd and Thanks! :cheers:
 

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