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Problem with my drop

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Old 09-24-2008, 04:29 PM
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Default Problem with my drop

I've got the mcg 4/7 drop on my truck but with the wheel and tire combo I ran (305/40 22) it was too low in the back. I was bottoming out in the rear on the inside of the fenderwell. I was told that the rear suspension on the nnbs was weak and that if I added an add-a-leaf I would not notice the ride difference. Well I don't bottom out now but the whole truck rides like crap. Even the front is pretty harsh. My question to everybody is If I ordered the shackles to bring it up to 6 inches of drop in the back correctly, will it smooth out my ride and still prevent me from bottoming out??? (wow my fingers hurt!lol)
Old 09-24-2008, 06:50 PM
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did you get new shocks? and if you did which ones? and yes lifting it would help
Old 09-24-2008, 07:28 PM
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i have the same setup on mine, but mine rides good, wat type of shocks do you have? i would recommend doestch tech shocks, i havent bottom out since.
Old 09-24-2008, 09:33 PM
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I'm not sure what brand they are but they are the ones that came with the kit so i'm sure they are not the best of shocks! What size shocks are they?
Old 09-24-2008, 09:54 PM
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i would recommend some doestch tech shocks for the rear, i dont know what size but check sport truck direct
Old 09-25-2008, 06:13 PM
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Ok I went to sport truck direct and got very confused very fast on what size shocks to get. I plan on ordering some next week so does anyone know what size I need?
Old 09-27-2008, 11:27 AM
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I did this on my crew cab 08" Sierra TEX-Ed
Same drop, same issues ! Simply put the shocks suck azz! they do not even belong matched up with this kit.

So how did I fix this ? Well being old school I remembered how I use to lift my 70" SS 396 Camaro with a set of air shocks.
Went down to Auto Zone and picked up a set of Gabriel hi-Jackers
"part # 49155. This will level you out and also give you a smoother ride.

One other thing is to relocate the brake line bracket that is attached to the diff and move it just under the mounting bracket. this is what hits the underside of the bed on the truck first.

P.S. I don't have any bump stops and the shocks do a good job of not letting the wheels rub.
Old 09-27-2008, 12:20 PM
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you can notch the chasis about 2 inches to get some extra clearance if you havent done it already. and take off that extra leaf spring... who ever told you that, is an idiot... also get some good shocks.
Old 09-28-2008, 05:27 PM
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Thanks for the advice guys. How much did those air shocks cost?
Old 09-28-2008, 05:37 PM
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I recomend elebrok IAS shocks for any type of drop.. anything else wont ride as nice. my truck with a 3/4 and IAS rides smoother then stock but firm in hte corners


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