Thread: GMT900 NNBS Lowering FAQ

I wanted to put together a comprehensive list of lowering your NNBS truck.


REAR OPTIONS

1'' - Remove your OEM lift block. You have enough threads on your stock U-bolts do to this

2'' - Use a lowering shackle. I prefer Mcgaughy's or Belltech because they use an OEM style bushing that won't squeak like DJM. DJM uses poly bushings that are infreior

3'' - Combine 1'' and 2'' options

4'' - Combine a flip kit (again I prefer Mcgaughy's or Belltech over DJM, much better design) with a lift hanger. Mcgaughy's makes quality ones. Set the lift hanger to 3''. This combines a 7'' flip kit (drop) with a 3'' hanger (lift) and it nets 4'' of drop.

5'' - Same as the 4'' option, but move the hanger up to 2''. This nets 5'' of drop

6'' - Same as 5'', but add a short (lift) shackle.

7'' - Use stock shackle, hanger with a flip kit

8'' Same as 7'', but add a drop shackle set at 1''

9'' - Same as 7'', but add a drop shackle set at 2''

**Anything over 7'' will require a notch**


FRONT OPTIONS


For the front, personally, I like a combination of drop spindles and Belltech drop struts or Mcgaughy's coil relocators.

• For spindles, I like either Mcgaughy's or Ground Force. Belltech drop spindles are taller than stock which can create camber problems

1'' - Use belltech struts or Mcgaughy's relocators set at 1''

2'' - I prefer spindles for this

3'' - Combine the spindles with struts or relocators set at 1''

4'' - Combine the spindles with struts or relocators set at 2''

5'' - Use a 2'' drop spring on BT struts set at 1'' along with a 2'' spindle

6'' - Use DJM 4'' arms with a 2'' spindle



If you're having problems aligning (camber specifically), I recommend SPC alignment busings and/or cams. You may have camber problems starting at 4'' and definitely want to order these if you plan on the 5'' option Bushings Cams

The cams are a little easier to install because you don't have to press them in.





SHOCKS

I like belltech street performance shocks. Anything from 4'' and lower in the rear is going to need new shocks.




If you have any questions, PM me.

Nick, will this work?

Eibach Pro-Alignment Camber Bolt/Plate Kit - Front - Camber +/-1.5, Caster +/-1.5 degrees of adjusment. for 07-up Chevrolet Silverado at Andy's Auto Sport

I need a camber kit and this is what I bought when the fucks said it wouldn't work.

Yes.

Those mother fuckers. I seriouslly want to burn the fucking place down now for telling me they wont work.

So you can go 6/9 without a notch?

Can you? Probably.

Should you? Fuck no.

Originally Posted by 08RCSB

Can you? Probably.

Should you? Fuck no.

Word. I'm 4/7 and need a notch.

120 for the kit installed and alignment.

Originally Posted by 08RCSB

Can you? Probably.

Should you? Fuck no.

Okay lol. Gonna go 4/7 then!

Get helper bags dude. I'm telling you now.

Yeah that was part of the plan. Dude this guy's add is still up, I emailed him like 4 times.
I think he died.

2008-2010 Chevy Silverado McGaughy's 4/7 lowering kit

Lol shad. No notch or Helpers for us rcsb owners :big_banana_dance:

But no backseat for us

Does anyone have a RC NNBS that does ride good? I hear alot of people with cc's say there 5/8 rides like stock. i have a 4/7, extenders and helpers, and it fucking sucks. Is it just the short body, and cant take the impact? Or what? I havnt talked to one person with a lowered RC that has a decent ride.

Shorter wheelbase always makes the ride seem rougher, the slightest bump pitches the entire truck more than a longer wheelbase would. Not to mention it weighs significantly less, which means less inertia, or resistance to the movement.

Let me tell you though, a CCLB, seems to be just the wrong wheelbase to perfectly catch the seams in concrete paving and bridges

What shocks do you have again?

are the NNBS still sitting 2" higher in back than in the front like the older models? I need to level mine out..

Originally Posted by CHAGO

are the NNBS still sitting 2" higher in back than in the front like the older models? I need to level mine out..

Extended and Crew cabs do, regular cabs are a little higher in the rear, almost 3"

Originally Posted by GCncsuHD

Extended and Crew cabs do, regular cabs are a little higher in the rear, almost 3"

cool. mines a CC... thanks.

RCs have INCREDIBLE rake. The stock ones I see rolling around, I dont understand how the drivers are even comfortable in them.

Originally Posted by andrew.

rcs have incredible rake. The stock ones i see rolling around, i dont understand how the drivers are even comfortable in them.

HOLY SHIT CHAGO WTF ARE YOU DOING OVER HERE? lol. You spying fool?