2021 RCSB FX4 3" rear drop

[RedundanT]

So the first shot is with 2" Crown rear lower shackles installed only, the rear factory lift blocks are still in.

This second shot is still 2" Crown lower shackles but with factory lift blocks removed. The blocks on this particular RCSB were about 1 1/8" towards the front and 1 1/4" towards the rear, so it acts like a pinion shim. I ordered Beltech 2 degree pinion shims and installed those when removing the factory blocks, there is NO driveline vibrations. The rear is about 1" higher than the front now. I "think" I will eventually install 2wd front struts and call it "lowered" as this is about as low as I want to go with the shitty roads around here.

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[Graygoose2021]

Looks good!!

 

[SnowMan]

Did you have to do any trimming of the bed with the Crown 2" shackles?

Never mind, I found where Crown says installation of their 2" shackle requires cutting.

 

[RedundanT]

Did you have to do any trimming of the bed with the Crown 2" shackles?

Never mind, I found where Crown says installation of their 2" shackle requires cutting.

Trim, the bed is aluminum, what gets trimmed could be done with tin snips. It is nothing to freak out about.

 

[cyulst2]

Old thread I know but I love the look. Do you have any pictures of what needed to be trimmed for the 2" shackles? Also curious if you got to the 2wd front struts as well?

 

[RedundanT]

Old thread I know but I love the look. Do you have any pictures of what needed to be trimmed for the 2" shackles? Also curious if you got to the 2wd front struts as well?

Hard to get a picture of what is trimmed. It's aluminum, part of the underside of the bed, consists, of a strip about 6x1 inches. Don't have 2wd front struts, still going back and forth between those and coil overs.

 

[JasonRcsb23]

Truck looks great! Doing mine soon. Thanks for the info. I have a 2wd 5.0 rcsb 23 here’s the part #. Spring thickness is .635”

 

[Rockman5159]

So the first shot is with 2" Crown rear lower shackles installed only, the rear factory lift blocks are still in.

This second shot is still 2" Crown lower shackles but with factory lift blocks removed. The blocks on this particular RCSB were about 1 1/8" towards the front and 1 1/4" towards the rear, so it acts like a pinion shim. I ordered Beltech 2 degree pinion shims and installed those when removing the factory blocks, there is NO driveline vibrations. The rear is about 1" higher than the front now. I "think" I will eventually install 2wd front struts and call it "lowered" as this is about as low as I want to go with the shitty roads around here.

NICE STANCE!

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