U-bolt thread size - Chevy and GMC Duramax Diesel Forum

Suspension&Steering Discuss what Mods for the suspension & steering are right for you.

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post #1 of 12 (permalink) Old 12-11-2012, 05:14 PM Thread Starter
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U-bolt thread size

Does anyone know what size and pitch the u-bolts on the rear axle are. I need to buy nuts to put my traction bar brackets on. Thanks!

Sold: 2002 2500HD ECSB ZF-6, SB DD, EFI with a DSP-2 switch, Profab downpipe, 5" exhaust, Airdog II 165, AFE intake, 3 inch drop shackles, home made traction bars.
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post #2 of 12 (permalink) Old 12-12-2012, 05:34 AM Thread Starter
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Morning Bump.

Sold: 2002 2500HD ECSB ZF-6, SB DD, EFI with a DSP-2 switch, Profab downpipe, 5" exhaust, Airdog II 165, AFE intake, 3 inch drop shackles, home made traction bars.
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post #3 of 12 (permalink) Old 12-12-2012, 06:37 AM
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Its either 5/8 or 9/16....im leaning towards 5/8 but i cannot remember

07.5 CCSB 4x4 LMM- Efi Live, Airdog II, S&B, MBRP, Fuel Rail Shim, Ported Fuel Fitting, PCV Re-Route, EDGE Insight, Suncoast GMax 6-3 1057 Converter & HSP S475 over stock.
04 ECSB 4x4 Lb7 w/ Zf-6 SOLD
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post #4 of 12 (permalink) Old 12-12-2012, 06:45 AM Thread Starter
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I tried a 5/8-11 and that's not it. Dealer said they are M16x2.0. Guess I will give that a try.

Sold: 2002 2500HD ECSB ZF-6, SB DD, EFI with a DSP-2 switch, Profab downpipe, 5" exhaust, Airdog II 165, AFE intake, 3 inch drop shackles, home made traction bars.
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post #5 of 12 (permalink) Old 12-12-2012, 05:59 PM
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Quote:
Originally Posted by twin64 View Post
I tried a 5/8-11 and that's not it. Dealer said they are M16x2.0. Guess I will give that a try.

They are 9/16 coarse IIRC. I just replaced mine. I ordered 9/16 and got fine thread, which is OK since I got nuts and washers with it.

Oh yeah, mine is an 01, so there were some mix and match U.S. and metric. later models may be different. YMMV

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Looking for OBS interior parts: Graphite color code. (1999-2004 IIRC) Door panels for sure, but let me know what you have

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The perfect storm of incompetence....Nothing more dangerous than a redneck with money.....
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It's really complicated sounding, but it's easier than giving a fat girl a bucket of ice cream.
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post #6 of 12 (permalink) Old 12-12-2012, 06:10 PM Thread Starter
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Got them installed tonight. They were M16x2.0.

Sold: 2002 2500HD ECSB ZF-6, SB DD, EFI with a DSP-2 switch, Profab downpipe, 5" exhaust, Airdog II 165, AFE intake, 3 inch drop shackles, home made traction bars.
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post #7 of 12 (permalink) Old 12-12-2012, 06:28 PM
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Cool beans. Post pics of the bars and lets see 'em

The Bus
Looking for OBS interior parts: Graphite color code. (1999-2004 IIRC) Door panels for sure, but let me know what you have

RedNeck Dually Build Thread
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Quote:
Originally Posted by OVERWATCH_09 View Post
The perfect storm of incompetence....Nothing more dangerous than a redneck with money.....
Quote:
Originally Posted by Goose2448 View Post
It's really complicated sounding, but it's easier than giving a fat girl a bucket of ice cream.
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post #8 of 12 (permalink) Old 12-12-2012, 07:33 PM Thread Starter
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Will do tomorrow. It was to dark to take pictures when I got done.

Sold: 2002 2500HD ECSB ZF-6, SB DD, EFI with a DSP-2 switch, Profab downpipe, 5" exhaust, Airdog II 165, AFE intake, 3 inch drop shackles, home made traction bars.
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post #9 of 12 (permalink) Old 12-18-2012, 07:28 AM Thread Starter
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Traction Bars

Here they are. The brackets are 1/4" plate steel, the bars are 1 3/4" .250 wall DOM tubing, the ends are 3/4" thru hole heims joints.










Sold: 2002 2500HD ECSB ZF-6, SB DD, EFI with a DSP-2 switch, Profab downpipe, 5" exhaust, Airdog II 165, AFE intake, 3 inch drop shackles, home made traction bars.
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post #10 of 12 (permalink) Old 12-18-2012, 05:49 PM
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Dude, those are really sweet. Nicely done. Wanna make some money and make me a set and ship them to Texas?

The Bus
Looking for OBS interior parts: Graphite color code. (1999-2004 IIRC) Door panels for sure, but let me know what you have

RedNeck Dually Build Thread
Dually Club Member #191
Quote:
Originally Posted by OVERWATCH_09 View Post
The perfect storm of incompetence....Nothing more dangerous than a redneck with money.....
Quote:
Originally Posted by Goose2448 View Post
It's really complicated sounding, but it's easier than giving a fat girl a bucket of ice cream.
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