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Old 12-08-2019, 10:39 AM
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Exhaust options for lifted JK - '13 Rubicon

Have a '13 Rubicon w/2.5 Teraflex kit. Had the stock shocks w/Teraflex extensions until a couple months ago, at which time I upgraded to Rancho 5000X's. Through some research on the forum, I went the route of adding some Teraflex exhaust spacers, since the shocks had an extended length that was close to the line for having the front driveshaft hit the exhaust crossover pipe.

I hate the spacers. While I guess they do their job, I can't for the life of me get them on right. I have had them on and off 3 times, and no matter what, they leak. Small leak, but enough to cause a drone to the exhaust at speed.

Tighten on side down, the other side slips here and there which lead to the spacers sitting at a small angle, which allows the leak. The Y pipe slides in and out of the rear piece, so that's not the hold up.

Anyways, what's a better option for the exhaust? I'm not looking to spend a ton of money on this. I'm not yet at the point where I'm going to get the spacers welded in, nor a custom exhaust made.

Might look at just one custom piece, just from the front pieces to the rear piece, but figure I'd ask here before I went that route.

I've seen rancho has an option for a replacement pipe (RS720003), but the reviews don't look to hot on it.

Any advice? Any other options?

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Old 12-08-2019, 12:08 PM   #2
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Replace your front driveshaft. Aftermarket shafts are made of thicker walled smaller diameter tube which gives you the needed clearance without the exhaust spacers.


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Old 12-08-2019, 12:14 PM   #3
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Quote:
Originally Posted by xanth View Post
Have a '13 Rubicon w/2.5 Teraflex kit. Had the stock shocks w/Teraflex extensions until a couple months ago, at which time I upgraded to Rancho 5000X's. Through some research on the forum, I went the route of adding some Teraflex exhaust spacers, since the shocks had an extended length that was close to the line for having the front driveshaft hit the exhaust crossover pipe.

I hate the spacers. While I guess they do their job, I can't for the life of me get them on right. I have had them on and off 3 times, and no matter what, they leak. Small leak, but enough to cause a drone to the exhaust at speed.

Tighten on side down, the other side slips here and there which lead to the spacers sitting at a small angle, which allows the leak. The Y pipe slides in and out of the rear piece, so that's not the hold up.

Anyways, what's a better option for the exhaust? I'm not looking to spend a ton of money on this. I'm not yet at the point where I'm going to get the spacers welded in, nor a custom exhaust made.

Might look at just one custom piece, just from the front pieces to the rear piece, but figure I'd ask here before I went that route.

I've seen rancho has an option for a replacement pipe (RS720003), but the reviews don't look to hot on it.

Any advice? Any other options?
I have used the spacers on 3 different vehicles and no leaks. Have you tried exhaust paste? I originally used the RS720003 and did not like it because it caused the crossover to hang below the frame crossmember. My buddy installed one at the same time and hit a rock and developed a leak at the manifold.
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Old 12-08-2019, 01:10 PM
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Originally Posted by dwtgolden View Post
Replace your front driveshaft. Aftermarket shafts are made of thicker walled smaller diameter tube which gives you the needed clearance without the exhaust spacers.


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That is an option, but I'm not ready to drop $400 on a new DS yet.
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Old 12-08-2019, 01:11 PM
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Never used exhaust paste, but looks like a simple solution. Thanks!

Quote:
Originally Posted by jadmt View Post
I have used the spacers on 3 different vehicles and no leaks. Have you tried exhaust paste? I originally used the RS720003 and did not like it because it caused the crossover to hang below the frame crossmember. My buddy installed one at the same time and hit a rock and developed a leak at the manifold.
https://www.acehardware.com/departme...E&gclsrc=aw.ds
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Old 12-08-2019, 01:31 PM   #6
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That is an option, but I'm not ready to drop $400 on a new DS yet.


Not sure how many miles or how long yours has been lifted, but the boot on my front driveshaft let loose about a year ago on my ‘13 with 2.5” lift and 65k miles. My point being, you may be dropping the money for a new driveshaft in the near future, ready or not.


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Old 12-08-2019, 02:16 PM
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Not sure how many miles or how long yours has been lifted, but the boot on my front driveshaft let loose about a year ago on my ‘13 with 2.5” lift and 65k miles. My point being, you may be dropping the money for a new driveshaft in the near future, ready or not.


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The lift was on it when I purchased it, about 6 months ago. Currently 63K on it. I'll give the driveshaft a look over.

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