Drop Shackles

[mafd2]

Installed Wulf shackles. Used top holes. Perfect fit and truck sits level now. 22's next.

 

Sent from my LG-V495 using Tapatalk

 

 

 

 

[Billet Bowtie]

3 hours ago, mafd2 said:

Installed Wulf shackles. Used top holes. Perfect fit and truck sits level now. 22's next.

 

Sent from my LG-V495 using Tapatalk

 

 

 

 

Did you have any vibration after the shackle install? I had a little during deceleration around 20 to 30 mph. I ended up spinning the factory pinion angle shim from the thick end of the shim facing the front of the truck to the rear of the truck.

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[mafd2]

Haven't experienced any vibration.  Shouldn't have to change the pinion angle with just a shackle drop. I can understand a 4" or 5" rear drop. Did the shim reversal help?

Edited March 25, 2019 by mafd2

[Billet Bowtie]

2 hours ago, mafd2 said:

Haven't experienced any vibration.  Shouldn't have to change the pinion angle with just a shackle drop. I can understand a 4" or 5" rear drop. Did the shim reversal help?

I thought the same thing but once I did some research it's fairly common on the older body style. It kind of makes since. On a flip kit the rear stays at the exact same angle as before the flip. With a shackle and hanger style lowering kit the front and the rear of the springs are lifted together. Doing just a shackle just lifts the rear of the spring causing the pinion to point down. I'm sure it might not affect some trucks but could others. Heck I dont know if all the 19s have a factory installed shim like mine does. It might depend truck to truck. Flipping the shim did correct my minor vibration.

[mafd2]

Gotcha.  Where's the shim at?  Where the lift block was between the axle and leaf springs?

[Billet Bowtie]

Yea it's sandwiched between the leaf spring and the spring mounting pad. Here is a picture of the shim.

[mafd2]

OK thanks.  Did you have to loosen the bolt going through the leaf's or did it spin freely?  I still haven't noticed vibration but if I do I'll reverse the shim.

[RUSSH]

I'm having a vibration when slowing down. It's the worst at 30mph. I guess I'll try and rotate the factory shim. Never had a problem on my previous trucks.

[mafd2]

1 minute ago, RUSSH said:

I'm having a vibration when slowing down. It's the worst at 30mph. I guess I'll try and rotate the factory shim. Never had a problem on my previous trucks.

Yea I hear ya.  I've never had problems in the past and have put drop shackles on many trucks.  I didn't notice any vib when I installed my shackles but then later noticed the same vibration when slowing down around 30mph.  I rotated the shim and "voila"!  Cleared it up. 

[19trailbossRic]

Installed those 2”  dropshackles and used the 1.5” hole. Also did airbags to stop the porpoising I was experiencing while pulling a travel trailer at highway speeds over dips. I ride it 1/2” higher than flat with around 10lbs in the bags and around 20lbs with the trailer hooked up and loaded down. 

Edited July 7, 2019 by 19trailbossRic

[KEEPER OF SECRETS]

19trailbossRic, what brand shackles are those? Are they the ones currently on Amazon? (Black with red bushings)

 

I'm looking to go this exact route with mine, towing a car though.

I don't want to raise the front, just drop the rear level for daily driver mode.

I figured this setup would be the best solution for both daily driving and towing.

Thanks in advance.

 

-Patrick-

[19trailbossRic]

You might consider stock ride height bags. I got the ones for the trail boss (2' lift) and with the drop shackle they are a bit compressed and hit the internal bump stop when flat over bumps which is why I run them with air which adds an inch of rake for a smooth ride. I did the bags first for trailering but then wanted to fix the non-trailering ride height.  Also, the "trail boss" bags actually required a 1/2" shim to make them work on the factory bump stop bracket to accommodate the total axle drop once you release the loading while on the lift.     

[trininatx]

On 7/8/2019 at 6:02 PM, KEEPER OF SECRETS said:

19trailbossRic, what brand shackles are those? Are they the ones currently on Amazon? (Black with red bushings)

 

I'm looking to go this exact route with mine, towing a car though.

I don't want to raise the front, just drop the rear level for daily driver mode.

I figured this setup would be the best solution for both daily driving and towing.

Thanks in advance.

 

-Patrick-

https://www.belltech.com/catalog/product/view/id/16164/s/belltech-2019-silverada-sierra-2wd-4wd-2-lowering-shackle-6416/category/165/

[19trailbossRic]

Here’s the link to the drop shackle

2" Rear Drop Lowering Kit For a trailboss..

 

https://www.amazon.com/dp/B07NF92HC2?ref=ppx_pop_mob_ap_share

[Mountain boy]

I did this on my 03 Denali and my 14 SLT,  what I noticed is it made the front of the truck seem higher at first, back goes down front goes up. I liked it and people noticed it but weren’t sure what was different. Put 305/50/20’s on the Denali looked fantastic.