Rear Shock and/or Lift Block DIY w/pics - Chevy Colorado & GMC Canyon
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post #1 of 11 (permalink) Old 02-06-2017, 02:49 PM Thread Starter
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Rear Shock and/or Lift Block DIY w/pics

Finally got around to putting in the rear Eibach sport shocks I had as well as lift blocks for the rear. Killed two birds and figured I would write it up for anyone who is interested.

It's a fairly easy job. Took me an hour total for both sides, you could certainly do it in less.

What you'll need:
23mm socket for lug nuts
21mm socket for all the bolts
Wrench to fit said sockets
21mm wrench or another socket
Jack
Jack stands or lift or something
Gloves, or not, your choice
Saftey glasses
Parts

So I had ordered the Eibach shocks all together in Dec on sale and rebate. The front have been excellent so was looking forward to the rear matching. So far they ride very nice, better than stock imo.
For the blocks and u-bolts, I took advice from @ssgjurista and ordered GM parts that are commonly sold as take-offs from FS. Part numbers: 15885530 and 11569811
Which I have an extra set of the blocks if anyone wants to buy (pm me)


*note* This only the way I did everything. I am by no means a certified mechanic or authority. Wrench at your own risk and what you're comfortable with. I take no responsibility in your actions.







Step 1: Chock the front wheels and jack up the rear, rest the frame high enough on some jack stands or if you have a lift, even better.



Step 2: Use a jack under the diff to position axle as needed. To start, raise the jack so it's just barely carrying load. (should use a piece of wood or something instead of jacking directly on the diff)



Step 3: Remove the lower bolt on the shock. 21mm nut and bolt.



Step 4: Repeat on other side

Step 5: Remove u-bolt nuts on one side and loosen on other. 21mm nuts




Step 6: Take off axle seat (not sure what you call it) and lower jack slowly to lower the axle enough to slip the block under the springs. May need to jostle a little to free things up



Step 7: Replace u-bolts with longer set and put axle seat back on and tighten nuts, not fully yet

Step 8: Repeat for other side

Step 9: Remove top bolt for shocks. 21mm bolt



Step 10: Swap shocks and tighten the top bolts

Step 11: Use the jack to move the axle as needed to align the bottom bolts and tighten back up



Step 12: Torque everything back up!



Step 13: Put the wheels back on, lower the truck slowly and torque the lugs

Step 14: Clean up and enjoy your new ride!


Here are some extra pics. Definitely nice to have a nice warm garage with a lift and air tools...





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2016 Red Rock LT CC SB v6 4x4

Eibach Shocks all around w/GM rear blocks, Dee Zee bed mat, TruXedo tonneau, Bull rings, Zevo LEDs, Westin steps, Fog Lights w/JDMAstar LED, Rear LED pods, Lumen G7s LED Headlights, Factory Remote Start, Dash Cam w/Invisicord, Husky Liners, Canyon console lid, Black badges and grill, Trifecta

My build thread
Front bumper removal How-To
Rear Shock/lift Blocks How-To
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post #2 of 11 (permalink) Old 02-06-2017, 02:56 PM
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Nice write up. Truck looks good, as well as the garage.
What you use on them thar splatter targets?
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post #3 of 11 (permalink) Old 02-06-2017, 03:49 PM
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Always helps to have a warm dry garage and air tools.

Did you do the final torque with the impact or a torque wrench and torque angle gauge?

BTW: those lift blocks look familiar. LOL
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post #4 of 11 (permalink) Old 02-06-2017, 04:12 PM
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Good writeup!

This might be answered already, but since they are GM OEM parts, are the blocks you used for your extra lift intended for a Z71?
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post #5 of 11 (permalink) Old 02-06-2017, 05:00 PM Thread Starter
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Quote:
Originally Posted by RatRacer View Post
Nice write up. Truck looks good, as well as the garage.
What you use on them thar splatter targets?
Thank you.
Got them to help sight scopes on a break barrel air rifle and an old .22
Shot a .45 the other day at one, didn't last very long haha

Quote:
Originally Posted by ssgjurista View Post
Always helps to have a warm dry garage and air tools.

Did you do the final torque with the impact or a torque wrench and torque angle gauge?

BTW: those lift blocks look familiar. LOL
Oh definitely, specially in New England. It's my parents house, they down sized a couple years back and my dad wanted a dream garage. I'm very appreciative to use it, only live about an hour away. Help him whenever he needs to do any work on our family's cars.

I torqued with a torque wrench. 120ft-lbs on the u-bolts was a pain in the butt


Quote:
Originally Posted by doctorit View Post
Good writeup!

This might be answered already, but since they are GM OEM parts, are the blocks you used for your extra lift intended for a Z71?
You should be able to use them on any of the twins I would assume.
I couldn't tell you exactly which model FS the come off but they fit very nice on the Colorado. I have to give credit to @ssgjurista for giving the part numbers.

2016 Red Rock LT CC SB v6 4x4

Eibach Shocks all around w/GM rear blocks, Dee Zee bed mat, TruXedo tonneau, Bull rings, Zevo LEDs, Westin steps, Fog Lights w/JDMAstar LED, Rear LED pods, Lumen G7s LED Headlights, Factory Remote Start, Dash Cam w/Invisicord, Husky Liners, Canyon console lid, Black badges and grill, Trifecta

My build thread
Front bumper removal How-To
Rear Shock/lift Blocks How-To
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post #6 of 11 (permalink) Old 02-06-2017, 11:18 PM
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Quote:
Originally Posted by kaiser67 View Post
Thank you.

Got them to help sight scopes on a break barrel air rifle and an old .22

Shot a .45 the other day at one, didn't last very long haha







Oh definitely, specially in New England. It's my parents house, they down sized a couple years back and my dad wanted a dream garage. I'm very appreciative to use it, only live about an hour away. Help him whenever he needs to do any work on our family's cars.



I torqued with a torque wrench. 120ft-lbs on the u-bolts was a pain in the butt









You should be able to use them on any of the twins I would assume.

I couldn't tell you exactly which model FS the come off but they fit very nice on the Colorado. I have to give credit to @ssgjurista for giving the part numbers.


When I looked up the part at the dealer there were a few vehicles and one of them was a Tahoe.

Another thank you to @ssgjurista


-mac
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post #7 of 11 (permalink) Old 02-08-2017, 03:09 PM
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Thanks for the kind words! The lift blocks are used on the 1500 Silverado/Sierra. Based on measurements (and being the guinea pig), I correctly guessed they would work on the Twins.
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"Brownstone Bumblebee" 2016 Diesel Colorado Z71 CCSB 4X4, Brownstone Metallic
HPD and Provent 200 Catch Cans, Amsoil Fluids, MetalMan Front Differential, Engine Oil Pan, & Steering Motor Skid Plate, Undercover Swing Cases
Say No! to Wheelers's Offroad!

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post #8 of 11 (permalink) Old 02-09-2017, 07:53 AM
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Great write-up and pics. Good info on the blocks as well!


Good color too. ;) Mine was clean like that when I bought it.
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post #9 of 11 (permalink) Old 02-09-2017, 08:04 AM
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What is the main reason / benefit for switching to the Eibach shocks? I can't imagine your OE shocks already wore out.

Nice write up!


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2015 Silver Colorado Z71
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post #10 of 11 (permalink) Old 02-09-2017, 09:11 AM Thread Starter
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Quote:
Originally Posted by cesharp3 View Post
What is the main reason / benefit for switching to the Eibach shocks? I can't imagine your OE shocks already wore out.

Nice write up!


Sent from my iPhone using Tapatalk
I got them together with the front on sale and with a rebate. Wanted a little nicer ride which they seem to offer.
cesharp3 likes this.

2016 Red Rock LT CC SB v6 4x4

Eibach Shocks all around w/GM rear blocks, Dee Zee bed mat, TruXedo tonneau, Bull rings, Zevo LEDs, Westin steps, Fog Lights w/JDMAstar LED, Rear LED pods, Lumen G7s LED Headlights, Factory Remote Start, Dash Cam w/Invisicord, Husky Liners, Canyon console lid, Black badges and grill, Trifecta

My build thread
Front bumper removal How-To
Rear Shock/lift Blocks How-To
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post #11 of 11 (permalink) Old 02-09-2017, 05:26 PM
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Quote:
Originally Posted by cesharp3 View Post
What is the main reason / benefit for switching to the Eibach shocks? I can't imagine your OE shocks already wore out.

Nice write up!


Sent from my iPhone using Tapatalk
Better ride and handling.
kaiser67 likes this.

"Brownstone Bumblebee" 2016 Diesel Colorado Z71 CCSB 4X4, Brownstone Metallic
HPD and Provent 200 Catch Cans, Amsoil Fluids, MetalMan Front Differential, Engine Oil Pan, & Steering Motor Skid Plate, Undercover Swing Cases
Say No! to Wheelers's Offroad!

"I respect everyone's opinion, no matter how wrong it may be."
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