Overview
The Tuff Country 97031 is a non-tapered axle lift blocks kit for the rear of the 2006–2018 Chevrolet Silverado 1500 and GMC Sierra 1500. The kit is an economical way to raise the rear end, and the blocks are designed to replace the factory block.
The kit includes the U-bolts and is a rear position part. It fits the 2006–2018 Silverado 1500 and Sierra 1500 in the trims covered, along with the 2007 Silverado 1500 Classic and 2007 Sierra 1500 Classic models.
Key features
- Non-tapered lift blocks
- U-bolts included
- Designed to replace the factory block
- Economical way to raise the rear
- Rear axle position
Lift blocks and ride height
Axle lift blocks raise the rear of the truck by placing a block between the axle and the leaf spring, so the axle sits higher in the spring pack. Because the block changes the geometry at the spring, the U-bolts must be the correct length to clamp it. Non-tapered blocks keep the same thickness across their face, which suits some mounting positions and not others.
Raising the rear changes driveline angles, brake hose length and the stance over the rear wheels, so these areas should be checked after installation. Shock length and the rear bump stops can also need attention when the ride height changes. Re-torque the U-bolts after the first few drives, since the new mounting settles under load.
- Check driveline angles after lifting the rear
- Inspect brake lines and hoses for stretch
- Recheck U-bolt torque after the first drives
- Review shock length against the new height
Specifications
| Brand | Tuff Country |
|---|---|
| Part number | T/C97031 |
| Type | Axle lift blocks kit |
| Taper | Non-tapered |
| Included | U-bolts |
| Position | Rear |
| Fitment | Direct fit |
Vehicle fitment
It fits the 2006–2018 Chevrolet Silverado 1500 in its Custom, High Country, Hybrid, LS, LT, LTZ, SSV and WT trims, the 2007 Silverado 1500 Classic, the 2006–2018 GMC Sierra 1500 in its Base, Denali, Hybrid, SL, SLE, SLT and WT trims, and the 2007 Sierra 1500 Classic.
Heavy-duty 2500 and 3500 trucks are not on this list. Confirm your vehicle’s year, model and trim before ordering.
Installation notes
The factory block is removed before the new block is fitted. Check the U-bolt fit and the rear ride height after installation.
