Just lowered my truck to a 4/7; front 2” spindles,2”springs,drop shocks. Rear flip kit, shock extenders, drop shocks, c notch, and 2” shackles.

I am having a problem with vibration when I take off, the truck seems to shutter and feel like I’m gonna break a dang u joint lol, I read some things about Mcgaughys carrier bearing relocation kit may be the answer but I’m not sure and really don’t wanna spend 69$ to find out it wasn’t the problem I’m only 18 and I really am not sure what/how to know if my pinion angle is messed up I just get bad vibrations while taking off fast taking off slow and still haven’t got it up to high way speeds yet(letting me get used to having it this low) but anyways I really don’t understand why the pinion angle would be the problem but to my knowledge the flip kit had a built in pinion angle correction but it was just an eBay flip kit so not entirely sure please help and help would be greatly appreciated thanks ! Also haven’t gotten to take any pics of truck dropped really this is the only one I’ve taken also have a brand new carrier bearing already installed so I know it’s not that.

 

You need to get it on a drive on rack and measure the pinion angle.

But I think you’re going to need at least a 4-degree shim maybe even a 6-degree shim to correct it.

And yes, the angle changes drastically with a drop that low.

 

More than likely you will need that carrier bearing bracket to straighten that 2pc driveshaft...my SS is lowered 4-6 and when I first lowered it my driveshaft was at a very bad angle I would even hear like a banging noise at low speeds... after driving it like that for a weekend I installed the bearing bracket and everything has been fine now since then...