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Discussion Starter · #1 ·
Was looking into getting toytech 1-1.5" shackles but the link from bilsteinlifts.com says they will hit the drivers side tailpipe. Anybody running lift shackles with the trd duals? Copied from site:

1-1.5? Lift Rear Shackles (Adjustable) by ToyTec for 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Toyota Tundra

Part: SKLTUN

Included in kit:

(2) Adjustable Rear Lift Shackles W/ Grade 8 Hardware.
These shackles are made to withstand even the toughest conditions! 2?x3/8? steel legs, heavy-duty cross member welded in for extra support, and zinc plated for a long lasting finish.
Adjustable from 1? or 1.5? of lift so you can dial in your overall rear lift height.
Add new lower Energy Suspension replacement bushings from drop down if desired.
Note: Lowest hole setting is not used on Tundra’s
TRD PRO Tundras use a special exhaust system that doesn’t allow the shackles to work because they will hit the exhaust. Exhaust pipe modifications are required in order to use this shackles. As you can see on the picture the dual exhaust is on the sides and very close to the rear leaf springs and by pushing the leaf springs down with the shackle it will be touching the exhaust pipes
 

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Was looking into getting toytech 1-1.5" shackles but the link from bilsteinlifts.com says they will hit the drivers side tailpipe. Anybody running lift shackles with the trd duals? Copied from site:

1-1.5? Lift Rear Shackles (Adjustable) by ToyTec for 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 Toyota Tundra

Part: SKLTUN

Included in kit:

(2) Adjustable Rear Lift Shackles W/ Grade 8 Hardware.
These shackles are made to withstand even the toughest conditions! 2?x3/8? steel legs, heavy-duty cross member welded in for extra support, and zinc plated for a long lasting finish.
Adjustable from 1? or 1.5? of lift so you can dial in your overall rear lift height.
Add new lower Energy Suspension replacement bushings from drop down if desired.
Note: Lowest hole setting is not used on Tundra’s
TRD PRO Tundras use a special exhaust system that doesn’t allow the shackles to work because they will hit the exhaust. Exhaust pipe modifications are required in order to use this shackles. As you can see on the picture the dual exhaust is on the sides and very close to the rear leaf springs and by pushing the leaf springs down with the shackle it will be touching the exhaust pipes
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Discussion Starter · #3 ·
It was too cold to venture outside and crawl under the truck when I posted. Looked in the afternoon and cannot see the trd duals being an issue at all with shackles as they afe several inches behind the tips and the leafs are several inches below the pipes.
I think the ad is misprinted [more than 1 way]. How can a lift shackle push the leaf spring eye down, dont they simply change the distance between the leaf and chassis.?
 

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How can a lift shackle push the leaf spring eye down, dont they simply change the distance between the leaf and chassis.?
A larger lift shackle changes (increases) the distance between the frame and leaf spring eyelet. This effectively pushes the frame (and everything attached thereto except for the springs, axles, wheels, etc) up causing the lift. Because the exhaust remains a constant distance from your frame, the exhaust is also raised off the ground. Assuming the spring runs between the frame and the exhaust, this reduces the clearance between your leaf springs and exhaust/tail pipe. Whether or not you can run a certain shackle lift is determined by how much said clearance is reduced. From your measurements, it appears the shackles you are considering will likely work, but, you should measure the shackle (both in length and width) to be sure.

Oh, and don't forget to account for suspension droop, especially if you offroad.
 
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