How much longer do the bolts need to be in order to work on a Z71?

The bolts are fine. Pretty sure you won't be able to use the front skid plate for z71. And use the instructions for same kit made by rough country. Can down load from there website

Will these fit for a 2008 silverado with a 7.5 inch lift? cant quit chewing through cv axles

I used these on a 2013 Tahoe with a 7.5 RC lift. It fit and helped out my cv angle and the extra drop did not make my CV joints bind at full compression. However I did have to drop the front of my skid pan with some 1/4 spacers for just a little for clearance bc the chunk was just touching the skid pan on the front side. Maybe that helps

Do these spacers go between the diff bracket and fame or between the diff and diff bracket?

Between the diff bracket and frame. It drops the whole bracket down

Mzs Differential Drop Kit Diff Drop Spacers Hardware Compatible 2007

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Description

⚙️ Drop the differential, not your standards.

EFFORTLESS INSTALLATION - Bolt-on design lets you upgrade your ride in 1-2 hours without any special tools—get back on the road faster.
OPTIMIZED AXLE ALIGNMENT - Lowers front differential to reduce CV joint wear and vibrations, extending your drivetrain’s lifespan.
CORROSION RESISTANT FINISH - Anodized coating protects against the elements, ensuring your kit stays pristine mile after mile.
PRECISION ENGINEERED DURABILITY - Crafted from corrosion-resistant CNC machined T6 billet for unmatched strength and longevity.
TAILORED FIT FOR SILVERADO SIERRA - Specifically designed for 2007-2021 Silverado 1500 and Sierra 1500 4WD 6-lug models—perfect compatibility guaranteed.

The MZS Differential Drop Kit is a precision CNC machined T6 billet spacer designed to lower the front differential by 1 inch on 2007-2021 Silverado 1500 and Sierra 1500 4WD 6-lug models. This bolt-on kit reduces CV joint wear and vibrations caused by lifted suspensions, extending drivetrain life. Featuring an anodized corrosion-resistant finish, it installs easily without special tools and is a must-have upgrade for serious truck enthusiasts aiming for optimal performance and durability.

Specifications

ASIN	B0978JPRBD
Best Sellers Rank	#18,117 in Automotive ( See Top 100 in Automotive ) #4 in Car Differential Assembly Kits
Brand	MZS
Customer Reviews	4.3 4.3 out of 5 stars (96)
Date First Available	26 June 2021
Exterior	Smooth
Item Weight	839 g
Item model number	Diff drop spacer 05
Manufacturer	MZS
Manufacturer Part Number	005 Differential Drop Kit
Model	Differential drop kit 05
Package Dimensions	19.41 x 7.29 x 6.2 cm; 839 g
Position	Front
Special Features	MZS differential drop kit are easy bolt-on installation in 1-2 hours without special tools, MZS Differential Drop Kit fits 2007-2021 Silverado 1500 4x4,2007-2021 Sierra 1500 4x4.

Reviews

M**I

Fix axel angle

Perfect fit for my silverado 2012 3" lift

11.04.2025

M**I

doesn't fit my yukon 2010

8.02.2025

T**S

Great quality nice little bills worked great on my 2007 Chevy avalanche

18.02.2026

A**Z

Tienes que realizar más trabajo como cortar una parte del refuerzo del diferencial

2.05.2026

R**L

Great kit, worked great on my truck.

21.04.2026

J**N

Received product promptly and in good condition

13.03.2024

C**S

Does what it’s supposed to do. Nice quality bolts was the right size 07-13 Silverado good product

29.03.2026

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