2014+ Lowering / Drop Kits

[sprayed99]

Hmmm, not sure. The kit they list does include shock extenders & sensor rods. http://www.mcgaughystore.com/2015-gmc-sierra-denali-1500-2wd-4wd-2-rear-leveling-kit/

 

2015 Sierra Denali 1500 2wd/4wd 2" Rear Leveling Kit

 

This Kit Is Designed To Level The Rear Of Your 2015 GMC Sierra Denali 1500 2wd/4wd Truck. This will lower the rear of the truck 2".

Includes-

2" Rear Drop Shackles

Rear Ride Height Sensor Arms (Pair)

Rear Shock Extenders

 

Notes-Works With Magaride suspension

 

I do personally want to drop & level out the rear, but at the same time want to add bags for when I'm pinned up to the TT.

 

Which spindles, leafs & shackles did you use Dan? What did you do for adjustable links? Is that Denali you dropped 2WD or 4WD?

Also, the 2WD and 4WD has nothing to do with lowering the rear. The only reason McGaughys has only offered the 2/4 is because the spindlet relocates the wheel hub up and does not change the suspension geometry at all. This means it does not change the location of the sensor arm. I have already have a way to go lower in the front of the Mag ride trucks just haven't had someone local that wants to go that low......yet.

 

Another advantage to the adjustable links, is it allows you to change the response of the Mag Ride with a simple adjustment with a wrench.

[Digger3]

I know the number of drive wheels doesn't affect lowering the rear. The only 2/4 kit I've seen was McGaughys for 2WD & was curious if someone had found a way to 2/4 a 4WD with MRC.

 

I'd love to see what you used for adjustable links.

[sprayed99]

I used stainless 1/4x28 rod ends, stainless threaded rod, stainless jam nuts, and stainless M6x10MM Hex head bolts.

[sprayed99]

If you want a set made...

 

[Digger3]

Thanks for the offer Dan, but I'll be alright! I figured you likely used something along the lines of what you listed above.

[sprayed99]

Thanks for the offer Dan, but I'll be alright! I figured you likely used something along the lines of what you listed above.

It was more of a joke, and there is more into the ones I make. I just gave you the parts of what we used for the temporary units while I built the ones that are on the truck now. The temp units will work just as good, but they look like crap and I can't have my parts looking like crap.

 

The finished rods are RH and LH threaded so you can simply loosen the jam nuts and adjust the link by turning the center tube.

 

The finished rods look like a miniature version of this:

 

Edited October 2, 2015 by sprayed99

[Trxstr79]

Digger.

I used shock relocators and bent my Adjuster rods like the said. They may list the suspension for steel or aluminum. You gotta make sure what a arms you have. One of them is not made yet the other is and it's for 4wd.

 

 

 

 

I see the '15 drop kits with MRC are listed as "coming soon, call for info" but the 2/4 is only for 2WD. http://www.mcgaughystore.com/2015-sierra-1500-denali-lowering-kits/ Starting to get a little more excited. I juts hope I can still add bags for when the trailer is pinned up.

 

Did you get the '14/15 kit intended for non MRC shocks? Was there any shock relocators or sensor rods with the kit?

[Digger3]

Were you able to finally get your issues sorted out Dan? Is your truck 2WD or 4WD? If 4WD what is the McGaughys # you installed?

[sprayed99]

Were you able to finally get your issues sorted out Dan? Is your truck 2WD or 4WD? If 4WD what is the McGaughys # you installed?

No his issue is still there based on the PM he sent me.

[Cbtruckin]

HI,

 

Just bought the Mcgaughys 1"-2" rearshackles lowering kit (Just the shackles) for my 2015 GMC crew cab 4WD to level out the rear. Been searching through all the pages and trying to find a good HOW-TO article. Any links to some how-to articles? The included instructions weren't that great.

 

Thanks,

Corey

[Darth_Vader]

HI,

 

Just bought the Mcgaughys 1"-2" rearshackles lowering kit (Just the shackles) for my 2015 GMC crew cab 4WD to level out the rear. Been searching through all the pages and trying to find a good HOW-TO article. Any links to some how-to articles? The included instructions weren't that great.

 

Thanks,

Corey

Yeah, I have their lowering kit and the instructions were atrocious. You'd almost be as good without them.

[Cbtruckin]

Have you installed them yet? Or found any good instructions? I'm also looking for the torque specs for everything. Clinton and haynes don't have manuals yet.

 

Thanks,

Corey

[NewSilv]

Hello,

with dropping the rear down 2 inches, what size tires can fit?

I like a little bigger tire to fill in the gap a bit more. But i don't want to do a lift.

[Darth_Vader]

Have you installed them yet? Or found any good instructions? I'm also looking for the torque specs for everything. Clinton and haynes don't have manuals yet.

 

Thanks,

Corey

 

Yeah, I have installed the full kit except the shock extenders since I opted to buy Belltech drop shocks since I had read horror stories about the McGaughy's rear shocks. Now mine didn't have Shackles as I was doing a lower drop than you are, it had new brackets, but doing the shackles is straight forward enough:

 

Chock the front wheels, Jack up the rear of the truck, put the frame on jack stands.

Jack up the axle just enough to release tension on the leaf springs, won't take a lot of height.

Remove the two bolts for the shackle in the rear of the spring, after you get the nut off the first one (I always do the bolt through the bracket first) if the bolt doesn't want to come out you still have too much tension on the leaf spring so you will need to play with your axle height, with your jack, a bit to get the tension off. The bolt won't usually just slide out but it won't take a whole lot of force, I can normally just whack it when the end wrench I used to get the nut off and it will pop loose. Also, to get the shackle nuts off I have found it is easier to put a box end wrench on the nut and then use a (I think it is 10mm) socket on the end of the bolt instead of trying to use the thin bolt head that is on the shackle bolts.

After that put the put new shackle in, I would attach it to the leaf first and then raise/lower your jack until you can bolt it back to the bracket. Do not tighten the bolts all the way down until you put the truck back on the ground and load up the springs with weight or it could cause some issues.

 

Be aware though that by doing a shackle lift/lower you are changing some of the rear geometry and there is the chance of getting your pinion angle out of whack, so if you notice a vibration (usually in the 10-30mph range and/or the 60-75mph range) you will need to shim the axle to correct the angle. Not an expensive job or hard job by any means. But this isn't always the case, it is more of case by case basis.

 

I am dealing with this right now myself as when I did the 7" drop it was just an flip kit and kept my pinion angle the same, when I put my shackle brackets in it changed the rear location of my leaf mounts by two inches and now I have the vibration. Shimming it tonight.

 

If you have any other questions feel free to PM me and I will try to help out.

[Cbtruckin]

Thanks for the info. Going to pull trailer hitch tomorrow and do shackles friday. Do you know the torque specs for shackle bolts?

Thanks again

Corey