TeraFlex SpeedBump Bump Stop Kit (4"-6" Lift) for 1997-2006 Jeep Wrangler TJ & Wrangler Unlimited LJ
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Fits the same truck
Features
- Long-stroke SpeedBumps: 4" of stroke up front, 3" at the rear.
- Progressive cushioning: Softens hard bottom-outs, per TeraFlex.
- Protects the axle: Lower risk of bending an axle housing tube.
- Delrin shaft and seal: Self-lubricating shaft with an external wiper seal.
- Weld-in brackets: Brackets replace the factory front jounce tube and rear upper spring bracket.
- For 4"-6" TJ lifts: Sized for the TJ and LJ in this lift range.
Description & Fitment
TeraFlex SpeedBump Bump Stop Kits for the 1997-2006 Jeep Wrangler TJ and LJ Unlimited with 4"-6" of lift: choose the 4"-stroke front kit (1958700) or the 3"-stroke rear kit (1958720). The composite stops give a progressive cushion when the suspension bottoms out, which TeraFlex says helps keep control and lowers the risk of a bent axle tube. They are weld-in: the front bracket replaces the factory jounce tube and bump stop bell, and the rear bracket replaces the factory rear upper spring bracket.
Fitment & Compatibility
| Years | Model | Bed | Notes |
|---|---|---|---|
| 1997-2006 | Wrangler | TJ/LJ; 4"-6" lift |
Check your Jeep: Wrangler TJ 1997-2006 or Unlimited LJ 2004-2006 with a 4"-6" lift; welding available.
Not for: JK or JL models; bolt-on only installs.
About TeraFlex
TeraFlex describes itself as a Jeep company at heart, started and staffed by people who drive them. It designs, engineers and builds suspension systems, shocks, axles and performance parts, with the Wrangler and Gladiator at the center of the range.
The company traces its roots to the 1950s and MEPCO (Military Equipment Parts Company), an early supplier of Jeep parts. TeraFlex Manufacturing followed in 1996 to build heavy-duty suspension for the TJ Wrangler, and today's catalog runs from full lift systems and the Falcon shock line to axles, steering and armor.
Authorized TeraFlex dealer. Prestige Truck is an authorized TeraFlex dealer, so what we sell is new and genuine TeraFlex. In TeraFlex's words, its limited warranty extends "only to the consumer who originally purchased the product," so keep your receipt with your build records.
Frequently Asked Questions
Is welding required?
Yes. The front bracket replaces the factory jounce tube and bump stop bell, and the rear bracket replaces the rear upper spring bracket; both need cutting and welding.
Does it fit the LJ Unlimited?
Yes. TeraFlex lists the TJ Wrangler and LJ Unlimited with a 4"-6" lift.
Which option is front?
1958700 is the 4"-stroke front kit; 1958720 is the 3"-stroke rear kit.
What warranty does TeraFlex give?
TeraFlex covers its bump stops for life against defects in materials and workmanship. Contact us to confirm coverage on your part or to start a claim.
How quickly does it ship?
Shipping is free to the lower 48 states, and most orders arrive within 1-5 business days. We email your tracking number as soon as it ships.
Can you confirm it's the right part before I order?
Yes. Contact us with your VIN or year, model and trim, lift height and tire size, and we'll check it against TeraFlex's fitment information before it ships.
Installation
- Sockets
- Wrenches (13, 14, 15 and 17mm)
- 3/16" Allen wrench
- 2-5/8" hole saw
- Drill
- Die grinder
Here's the short version. Follow TeraFlex's install sheet (below) for your Jeep's exact steps and torque values.
- Front: lift the Jeep so the suspension fully droops, set it on jack stands, remove the wheels, unbolt the shocks at the axle (13mm) and lower the axle to remove the coil springs (also the sway bar links and track bar if the springs stay tight); the kit is designed for a TJ with 4"+ of lift (p1).
- Pull off the bump stop, remove the jounce cup (17mm) and spring isolator, mark the jounce tube 3/4" below its taper and cut it there with a cut-off wheel.
- Cut through both layers of the tube with the 2-5/8" hole saw (open it with a die grinder if needed), grind the tube flat, and tack, then fully weld the Speedbump bracket in place and paint the welds (p4).
- Fit the new spring isolator, smear silicon on the Speedbump, set it in the mount with the collar on top and tighten the pinch bolt with a 3/16" allen, then wipe off excess silicon.
- Drill the spring pad center with a 5/16" bit and tap it 3/8"-16 for the bump stop pads, choosing pad height for your shock length and tire size; refit the springs, shocks and any removed links and track bar.
- Rear: unbolt the shocks at the axle (15mm and 18mm), remove the spring, protect brake lines and wiring, cut off the old coil perch, grind the frame flush, position and mark the new perch so the Speedbump hits the spring perch center, then weld, paint and finish as in front (p6).
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Specifications
| Brand | TeraFlex |
|---|---|
| Product Type | SpeedBump bump stop kit |
| Options | Front, 4" stroke (1958700); Rear, 3" stroke (1958720) |
| Lift Range | 4"-6" |
| Part number | 1958700 |
| UPC | 843885025177 |
| Part # | Position & Stroke | UPC |
|---|---|---|
| 1958700 | Front, 4"-Stroke | 843885025177 |
| 1958720 | Rear, 3"-Stroke | 843885025184 |
Warranty, shipping & returns
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Warranty
TeraFlex covers its bump stops for life against defects in materials and workmanship.- TeraFlex extends its limited warranty only to the consumer who first bought the product, and only on the vehicle the part was first installed on. It does not pass to a later owner.
- Coverage starts on the purchase date and does not restart if a part is repaired or replaced.
- For a covered defect, TeraFlex will either repair or replace the product (or the faulty part) free of charge or refund the purchase price, at its discretion, and it pays the freight to send a repaired or replacement part back to you.
- Not covered: damage from transportation, storage, improper use, skipped instructions or preventive maintenance, modifications, unauthorized repair, normal wear and tear, product finish, improper installation or maintenance, racing or competition, or accidents, abuse and neglect. Improper installation, poor maintenance, racing or competition use, and neglect or abuse void the warranty.
- Paint and powder coat finishes carry 90 days of defect coverage only, not wear from use.
- Claims: contact us first. Keep your proof of purchase or original invoice; removing the part from the vehicle and the inbound shipping are the owner's responsibility.
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Free shipping
Ships free to the lower 48 states, with no minimum order.- Order by 5 PM ET on a business day and it starts processing the same day.
- Most orders arrive within 1-5 business days.
- We email your tracking number as soon as it ships.
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Inspect on delivery
Match every bump stop, extension, shim and hardware bag to the TeraFlex part list before you start, and contact us right away about anything missing or damaged. Check it as soon as it arrives.- Look for crushed ends, punctures or tears in the carton.
- If something looks wrong, take photos of the box and the parts (and if a driver asks you to sign, note the damage on the receipt).
- Open the box and check the parts against the parts list before you install.
- Email support@prestigetruck.com right away with your order number, a short note and photos. We send a replacement or a full refund at no cost to you.
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30-day returns
Return it within 30 days of delivery, unused, in the original packaging, with proof of purchase.- Email support@prestigetruck.com with your order number. We reply within 1-2 business days with instructions.
- Damaged, defective or wrong item: we send a prepaid label or arrange a pickup.
- Changed your mind: you pay return shipping. No restocking fee.
- Refunds go back to your original payment method within 7 business days of approval. See our returns policy.