TJ Soft Top Replacement
Replacing a TJ soft top is a 2–3 hour job the first time; once you've done it, an hour is realistic. The biggest variable is bow frame condition — cracked or bent bows will prevent a clean seal no matter how good the fabric is.
The TJ soft top is a folding bow frame assembly covered by fabric. When the top leaks, sags, or tears, the fabric itself is almost always the problem — the bow frames typically outlast two or three fabrics if the Jeep lives in a garage. Before buying a full replacement top, inspect the bow frames: look for cracks at the pivot points, bends from low-clearance parking damage, and broken end caps. If the frames are solid, a fabric-only kit runs $150–$200 less than a full top kit.
Bestop is the OEM supplier for TJ soft tops and the Supertop NX is the benchmark. Smittybilt and Rugged Ridge are workable budget options but the vinyl is typically thinner and the zip seal quality is noticeably lower — fine for an occasional-use rig, harder to live with as a daily driver in rain or cold. In sub-freezing temps, cheaper vinyl becomes stiff and cracks at fold points within a couple of seasons.
The windows on the TJ top are zip-in — they attach to the top fabric via a zipper and are retained by snaps. Window replacement is a separate job and the clear vinyl tends to haze before the fabric fails. If the top is leaking at a window seam rather than at the bow rail or header, you might only need new windows.
Most TJ soft top complaints are one of four failures, and only two of them need a new top. Run a hose over the top from the front back, with a helper inside holding a flashlight, and note where the water first appears.
- Water at the header, dripping on the sun visors: the header seal or the clamp geometry, not the fabric. Check that the header seats flat against the windshield frame and that the rubber seal is not flattened or cracked. A new top will not fix a header bow that is bent.
- Water at the side rails above the doors: the door-to-top seal or the half-door/soft door upper frame. Replace the weatherstrip first; it is a $40-$90 fix compared with a $250-$600 top.
- Water at the rear quarter windows or the zipper track: the window vinyl or the zipper, which is a window repair rather than a top repair (see the window section below).
- Water coming through the fabric itself, or pooling in the folds when it sags: the fabric has failed. Pooling in a sag is the sign the bows have shifted or the top has stretched; a new top on bent bows will pool the same way.
If the fabric is faded and stiff but not leaking, a UV treatment such as 303 Aerospace Protectant on the vinyl, repeated every couple of months, buys another season or two for under $20.
The frame is where a TJ top job succeeds or fails. With the old fabric off, check:
- Each bow for bends or flat spots from folding against the roll bar or from a parking-garage encounter.
- The pivot points and the bolts that hold the bows to the body brackets; elongated holes mean the bow is racking.
- The rubber bumpers and end caps; missing ones let the bows rattle and wear through the new fabric within a season.
- The header latch hardware and the windshield channel for corrosion that stops the header from seating.
Replacement bow sets are sold separately by Bestop and the aftermarket and run in the low hundreds of dollars. If two or more bows are bent, price a complete top with new frame hardware against repairing the old frame; it is often about even.
The rear and side windows of the TJ top are flexible vinyl and they fail by hazing and creasing long before the fabric wears out. Roll the windows loosely, never fold them hard, and store them flat or rolled over a cardboard tube when you take the top down for summer. Clean them with a plastic-safe cleaner such as Plexus or Meguiar's PlastX, not ammonia glass cleaner, which clouds the vinyl. A hazed rear window is a $80-$120 replacement; a zipper that has split is repaired by replacing the window panel, not by re-sewing the zipper.
Leave the top fully installed in the sun for a day before you hose-test it so the fabric relaxes and takes its final shape. Re-check the header latch tension after the first week because new fabric stretches slightly. Keep the cargo area dry when you remove the top for summer: the fold-down boot or a storage bag protects the fabric from creasing and abrasion. If you remove the top often, a sun-bonnet or Bimini top is a cheaper alternative to repeated full-top handling; see the fender flares guide for related body hardware and the sound deadening guide for cutting highway noise with a soft top.
- The header seal leaks if the clamp levers don't fully engage. If you're getting water intrusion at the header on a new top, check that the bow is fully seated in the windshield channel before latching.
- Don't force windows into the zipper track. If the zip-in window isn't tracking smoothly, back it out and realign — forcing it splits the zipper tape.
- In cold weather, warm the fabric in sunlight for 20–30 minutes before installation. Cold vinyl doesn't stretch and the snap alignment will be off.
- Snap alignment on budget tops is sometimes off by 5–10mm. A heated snap setter can reposition snaps; gluing them down is a last resort.
- Bestop Supertop NX: $500–$550 at 4WP, Quadratec, or Amazon
- Smittybilt OEM-style: $240–$270 at Amazon
- Fabric-only (Bestop Sailcloth): $180–$220 for the skin
- Windows (Bestop replacement rear window kit): $80–$120
Budget for the top + a half-hour of frustration on the header if it's your first install.
Steps
- Fold the existing top rearward to expose the header (front bow). Release the header clamps — two levers that fold down and lock the front bar against the windshield frame.
- Unsnap the top from the windshield channel. The fabric snaps to a metal strip that runs across the top of the windshield frame.
- Work rearward unsnapping the top from the body tub. TJ tops use snaps along both sides and across the tailgate.
- Unzip and remove windows. Store them flat — folding them causes crease hazing.
- Remove the fabric from the bow frames. The fabric slides over the front bow and typically attaches with Velcro or screws at each bow. Consult the replacement kit instructions — attachment varies by manufacturer.
- If reusing bow frames: inspect each pivot, wipe down all contact points, and apply a thin coat of rubber lubricant to the seals before fitting the new fabric.
- Slide the new top over the front bow. Pull rearward so the fabric is smooth and even across the bows.
- Attach the header to the windshield channel. The header bar should sit flush and snap tight — if it's lifting at the corners, the fabric tension is off. Work out the wrinkles before latching.
- Work rearward snapping the fabric to the body tub. Start at the front corners and pull toward the back — chasing wrinkles toward the tailgate.
- Reinstall and zip in the windows. Confirm all snaps and the zipper seal are seated.
Tools required
- trim panel tool
- T25 Torx
- scissors or utility knife
- rubber mallet
- helper (recommended)
Parts
| Part | Vendor | Est. price |
|---|---|---|
| Bestop Supertop NX — black diamond | Bestop | ~$530 |
| Bestop Supertop Classic (budget tier) | Bestop | ~$330 |
| Rugged Ridge All-Terrain replacement top | Rugged Ridge | ~$260 |
| Smittybilt OEM-style replacement top | Smittybilt | ~$250 |
Sources
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Written and maintained by an AZ wheeler and driveway wrencher. How we source guides. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.