2020 Silverado rear blocks

Rfg14silverado · December 20, 2019

I’m looking to do a 2.25” leveling kit in the front and also want to add a 1” block in the rear but I can’t find any 1” lift blocks for 2019-2020. Does anyone know if the Blocks from previous years work?

arvid.garey · December 21, 2019

I believe they already have a 1.25 block stock, so this 2.25 block from readylift.com will give you the 1" you are looking for.

2.25" REAR BLOCK KIT - GM SILVERADO & SIERRA 6-LUG 1999-2020

$149.95

SKU

66-3002

FiatDale · December 22, 2019

I have a set of factory blocks somewhere That will work. Any of the old blocks will work, just need longer u bolts.

Rfg14silverado · December 23, 2019

On 12/20/2019 at 10:31 PM, arvid.garey said:

I believe they already have a 1.25 block stock, so this 2.25 block from readylift.com will give you the 1" you are looking for.

2.25" REAR BLOCK KIT - GM SILVERADO & SIERRA 6-LUG 1999-2020

$149.95

SKU
66-3002

My truck is a 2020 rst 6.2L 4wd. Has no block from the factory

Flatblack83 · December 23, 2019

None of these trucks have blocks, its totally different from the previous style. The only ones that do are the gm lift trucks like the trailboss or at3. I have a 1 inch block and u bolt kit from motofab in the classifieds, still new in the box. I called to order it, they didnt have the 19-20 on the site yet.

I didnt use it since I put on a 3 inch icon instead.

Edited December 23, 2019 by Flatblack83

lapoolboy · December 23, 2019

9 hours ago, Rfg14silverado said:

My truck is a 2020 rst 6.2L 4wd. Has no block from the factory

This is quite interesting. My 2019 didn't have factory blocks either but it has little 1/4" thick tapered shims. Yours doesn't have them. ReadyLift told me to remove them and I was hesitant to do so because everyone else with same lift has them still installed.

Edited December 23, 2019 by lapoolboy

jbshoo · December 23, 2019

Suspensionmaxx is the only I have found to have a 1.5 block with a shock extender. I decided just to go with the ready lift 2” front, still have 1/2 rake. There were/are no other blocks that I’ve found for the Denali with Arc. Would like a 1 inch at some point.

Fltmech · December 23, 2019

44 minutes ago, jbshoo said:

Suspensionmaxx is the only I have found to have a 1.5 block with a shock extender. I decided just to go with the ready lift 2” front, still have 1/2 rake. There were/are no other blocks that I’ve found for the Denali with Arc. Would like a 1 inch at some point.

What are you doing for wheels and tires? I was thinking of getting the 3" Fabtech or 3-1/2" RC but both of those say aftermarket wheels only and I am not ready to pull the trigger on any wheels just yet. I also do not want my wheels/tires sticking out like roller skates.

Rfg14silverado · December 23, 2019

10 hours ago, lapoolboy said:

This is quite interesting. My 2019 didn't have factory blocks either but it has little 1/4" thick tapered shims. Yours doesn't have them. ReadyLift told me to remove them and I was hesitant to do so because everyone else with same lift has them still installed.

That’s weird. I was starting to think they forgot to add a block in mine. My truck is only 1.25” lower in the front than the rear

so a 2.25” in front and 1 block would be a nice lift/level

Flatblack83 · December 24, 2019

I put a 1.5 block in the rear when I did my 3 inch. It's not tapered so I left the shim in. No vibrations and so far so good.

Both the 3 inch and 3.5 come with upper control arms. With stock wheels they rub the tire. When I put my icon coilovers on I used rough country upper arms, the tire clearance with stock wheels was about 3/16. Not enough for me. I put on 1/4 spacers up front and it's good to go.

lapoolboy · December 24, 2019

I have ReadyLift UCAs with their 4". I have about 1/4" clearance between tire and arm.

SSsierra · January 28, 2021

On 12/23/2019 at 8:42 AM, lapoolboy said:

This is quite interesting. My 2019 didn't have factory blocks either but it has little 1/4" thick tapered shims. Yours doesn't have them. ReadyLift told me to remove them and I was hesitant to do so because everyone else with same lift has them still installed.

Interesting my 2020 doesn’t have the leaf spring block nor does it have this 1/4” shim either and I have a low speed vibration between 28-10 mph. I am thinking this forward 1/4” shim would fix my pow speed vibration

andrewb24 · January 29, 2021

I have a 1" block on mine that came from performancelifts.com https://performancelifts.com/fabtech-2019-current-silverado-sierra-1500-1-block-u-bolt-kit.html

jfro · March 30, 2021

On 12/23/2019 at 7:52 PM, Flatblack83 said:

I put a 1.5 block in the rear when I did my 3 inch. It's not tapered so I left the shim in. No vibrations and so far so good.

Both the 3 inch and 3.5 come with upper control arms. With stock wheels they rub the tire. When I put my icon coilovers on I used rough country upper arms, the tire clearance with stock wheels was about 3/16. Not enough for me. I put on 1/4 spacers up front and it's good to go.

Where did you get your 1.5" block?