Installing limit straps is a straightforward job that most DIYers can handle in 1–2 hours per axle. You don't need special tools or fabrication skills — just basic hand tools, a torque wrench, and a helper to hold things while you bolt them in.
Tools Needed
Basic Tools
Sockets (10mm–19mm), ratchet, wrenches, zip ties
Torque Wrench
Required for final torque specs — do not skip this
Jack & Stands
To cycle suspension and check droop travel
Tape Measure
To verify strap length before final install
Before You Start
⚠️ Safety First
Always support your vehicle on jack stands (never rely on a jack alone) when working under it. The suspension will be unloaded during installation — keep hands and tools clear of pinch points.
First, measure your intended mounting points to confirm your straps are the correct length. See our sizing guide if you haven't measured yet. It's much easier to exchange straps before installation than after.
Step 1: Identify Mounting Points
Locate Frame and Axle Mounting Points
Most limit straps mount between the vehicle's frame rail and the axle tube or control arm mount. On IFS trucks: look for the upper control arm mount on the frame and the axle-side UCA bolt. On solid axle Jeeps: frame rail to the differential cover or axle tube.
Your existing shock mounts are often the best reference point — limit straps should be mounted in a similar location but positioned so the strap takes load before the shock bottoms out on extension.
Step 2: Pre-Assemble Hardware
Thread Bolts and Check Clearances
Before tightening anything, loosely assemble the strap, brackets, and mounting hardware. Check that the strap won't chafe against any components: brake lines, wiring, sway bar links, or control arms. Use cable ties or rubber grommets to protect against chafing.
Step 3: Set Suspension at Full Droop
Load the Suspension to Full Droop
With the vehicle supported on stands, use a jack under the axle to cycle the suspension through its full travel. Let it hang at full droop (wheels hanging down as far as possible). This is the position where limit straps should take tension.
In this position, the strap should be taut but not fully loaded — you want a small amount of slack so the strap engages only at the last moment of extension travel.
Step 4: Check Strap Length
Verify Strap Length at Full Droop
With the suspension at full droop, the strap should be taut with minimal slack — it will stretch under load to reach full extension — it should NOT be fully extended. If the strap is already at full extension at stock droop, it's too short for your application. If it has more than 2" of slack, it's too long and won't do its job.
Adjust by moving the axle-side mount up or down on the strap (if using adjustable hardware) or exchange the strap for a different length.
Step 5: Torque All Hardware
Torque to Specification
Once you're satisfied with the fitment, torque all mounting hardware to the manufacturer's specification. Common torque specs:
- M10 bolts (frame mounts): 35–45 ft-lbs
- M8 bolts (axle mounts): 20–30 ft-lbs
- M6 bolts (brackets): 8–12 ft-lbs
- Nyloc nuts: Use a dab of thread locker in addition to torque
Important: Always re-torque after the first off-road trip. Vibration and suspension loading can loosen hardware.
Step 6: Recheck After First Drive
Post-Run Inspection
After your first trail run, jack up the vehicle and inspect all limit strap mounting points. Check for:
- Any signs of the strap contacting other components (chafe marks)
- Loose hardware
- Stretching or deformation of the strap
- Proper tension — strap should engage just before full droop
Common Mistakes to Avoid
✓ Do This
- Measure twice, install once
- Use thread locker on all mounting bolts
- Re-torque after first trail run
- Protect straps from chafing with grommets or tape
- Check clearance through full suspension travel
✗ Avoid This
- Mounting straps parallel to control arms (angle them)
- Using worn or corroded mounting hardware
- Over-tightening (stretches the strap)
- Mounting near heat sources (exhaust)
- Skipping the re-torque check
Need Help Sizing Your Straps?
If you're not sure what length straps you need, check out our sizing guide for detailed measurement instructions, or order a custom length at bullstrap.com — specify your vehicle, lift height, and suspension brand.