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Old 03-08-2011, 04:39 PM
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Doc removal info needed

I am going to be unbolting my Doc pipe from the down pipe in the morning and would like to hear any tips on doing this. Like what size the bolts are, what side is the side you unbolt i heard the nuts are welded on. Any tip or pictures just to make it quicker would be appreciated. I have already taken off the dpf a few months ago but have decided to take the Doc off and straight pipe it.
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Old 03-08-2011, 05:20 PM
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Originally Posted by geereed View Post
I am going to be unbolting my Doc pipe from the down pipe in the morning and would like to hear any tips on doing this. Like what size the bolts are, what side is the side you unbolt i heard the nuts are welded on. Any tip or pictures just to make it quicker would be appreciated. I have already taken off the dpf a few months ago but have decided to take the Doc off and straight pipe it.
You'll need a 1/2" socket and extension for the top bolt. its a little challenging . The bottom bolt is easy to get to. I recommend unbolting the hanger it a 13mm nut. Goodluck
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Old 03-09-2011, 04:08 PM
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My biggest question is what side of the down pipe flange bolts do you actually undo. The front off the truck or to the rear. I see different people say the bolts are welded or the nuts are welded so just asking what side front our back do you put the socket on. My new doc/dpf delete pipe only came with 2 nuts to install it to the down pipe no bolts.

Last edited by geereed; 03-09-2011 at 04:12 PM.
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Old 03-09-2011, 04:16 PM
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Originally Posted by geereed View Post
My biggest question is what side of the down pipe flange bolts do you actually undo. The front off the truck or to the rear. I see different people say the bolts are welded or the nuts are welded so just asking what side front our back do you put the socket on. My new doc/dpf delete pipe only came with 2 nuts to install it to the down pipe no bolts.
The nuts(rear side) are welded. The bolts (front side) you can take off. They are long. I broke mine loose with a ratchet then uses an air ratchet and a combo of swivel extensions to power it the rest of the way out. One is easy to get to. The top one is a *****************************. You will see once you get under there.
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Old 03-09-2011, 05:18 PM
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As Jmart said the socket goes on the front of the bolt towards the front of the truck. I used a 8-10" extension on my rachet for the top bolt. The 2 nuts that you received with delete pipe will fit the 2 bolts that you remove from the flange. Good Luck
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