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

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Description

🚙 Drop the diff, not the vibe — upgrade your 4WD with precision and style!

EFFORTLESS INSTALLATION - Bolt-on design lets you upgrade your ride in 1-2 hours without any special tools—get back on the road faster.
PROLONG YOUR SUSPENSION LIFE - Improves axle alignment to extend the lifespan of critical drivetrain components, saving you costly repairs.
OPTIMIZED VEHICLE PERFORMANCE - Lowers front differential by 1 inch to reduce CV joint wear and eliminate annoying vibrations after lift kits.
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 premium CNC machined T6 billet spacer set designed to lower the front differential by 1 inch on 2007-2021 Silverado and Sierra 1500 4WD 6-lug models. This bolt-on kit reduces CV joint wear and vibrations caused by lift kits, improving axle alignment and prolonging drivetrain life. Easy to install without special tools, it features anodized corrosion resistance for lasting durability.

Specifications

Manufacturer	MZS
Brand	MZS
Model	Differential drop kit 05
Package Dimensions	19.41 x 7.29 x 6.2 cm; 839 g
Item model number	Diff drop spacer 05
Exterior	Smooth
Manufacturer Part Number	‎005 Differential Drop Kit
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., MZS is a professional supplier who always supply high quality vehicle accessories.Providing the best service and innovative technology always are our pursuing.Once you run into any problem,please feel free to MESSAGE us.
Item Weight	839 g

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