How to Use an Inner Tie Rod Tool

What the tool does and when you need it

The inner tie rod threads into the end of the steering rack and sits under a rubber bellows boot. Its housing is tucked close to the rack, and the long tie rod shaft extends outward toward the outer tie rod end. That layout leaves no room for a standard wrench, which is the problem the tool solves. It is a hollow tube with an adapter on one end that engages the joint housing and a square drive on the other end for a ratchet or breaker bar. Replacement usually follows an inspection that finds noticeable joint play when the tie rod is pushed and pulled through the boot, a torn boot with dirt or moisture inside, or a rod bent by an impact.

Before starting, confirm the practical requirements. You need a level surface and proper vehicle support, room to swing a ratchet near the subframe, a torque wrench covering the specified values, a tie rod end separator for the outer joint, and access to a wheel alignment soon after the repair. If any of these is missing, arrange it first rather than improvising halfway through the job.

Confirm the tool fits your steering rack

Fit depends on the inner joint housing. Some housings have wrench flats, while others are round with slots or holes that need a matching cup or pin adapter. Measure the housing across the flats or across its diameter with calipers, or check the service information, then match that dimension to a published adapter size. The tube must also pass over the tie rod shaft and its outer threads, and it must be long enough to reach the housing. Clearance matters too: the subframe, rack mounting points, sway bar and exhaust can block a long straight tube, which is why some kits include short tubes or adapters that slip on from the side.

Not every steering system uses this tool. Center-take-off racks bolt the tie rods to the middle of the rack, and recirculating-ball steering uses linkage with adjusting sleeves instead of threaded inner joints. On racks that do use threaded joints, the housing may be secured by a staked lock washer, a lock pin or a jam nut that has to be released first. Finally, check that the tool's drive size matches your ratchet, breaker bar and torque wrench, or plan for the correct adapter.

Removing the old inner tie rod

Park on level ground, chock the wheels that stay down, and center the steering wheel. Lift the vehicle at the manufacturer's lifting points and set it on jack stands rated for its weight at the specified support points; never work under a vehicle held only by a jack. Remove the wheel. Before disturbing the outer end, measure from a fixed reference on the tie rod to the center of the outer tie rod end, or mark the threads, so you can restore an approximate toe setting later.

Loosen the jam nut, remove the cotter pin and castle nut, and separate the outer tie rod end from the steering knuckle with a separator. Unscrew the outer end while counting full turns, then remove the jam nut. Release or cut the boot clamps and slide the boot off the rack. Release any locking feature on the inner joint as the service information describes, such as straightening a staked washer or removing a lock pin.

Choose the adapter that matches your housing, slide the tube over the tie rod, and seat the adapter fully on the flats or slots. Attach a ratchet or breaker bar to the drive end and turn steadily, normally counterclockwise, after confirming the thread direction in the service information. If the rack turns or the service procedure says to hold it, hold it as directed so the load does not go into the pinion. If the adapter slips, stop and reseat it or switch to a closer-fitting one, because a rounded housing makes removal much harder. Avoid using heat near the rack seals and boot.

Installing the new inner tie rod

Compare the new part with the old one for overall length, thread size and housing shape. Clean the rack threads, fit a new lock washer or pin if the design uses one, and apply thread locker only if the part instructions or service information call for it. Start the joint by hand to avoid cross-threading. Tighten it with the tool and a torque wrench to the fastener specification for your vehicle. When the adapter is in line with the drive, the wrench reading applies directly; if an offset adapter extends the wrench length, follow the tool and torque wrench instructions for correcting the reading. Stake the washer if the design requires it.

Reinstall the boot without twisting it and secure it with new clamps. Thread on the jam nut and the outer tie rod end to your recorded measurement or turn count, connect the outer end to the knuckle, tighten the castle nut to specification, and install a new cotter pin, following the service information if the slot and hole do not line up. Snug the jam nut as specified. Lower the vehicle so it rests at normal ride height, check that the steering wheel is close to centered, and have a wheel alignment done promptly. Counting turns only approximates toe; it does not replace measurement.

Features that affect the choice

The most useful evidence on a tool listing is a list of adapter sizes and types that you can compare with your own measurement. Labels such as universal or fits most vehicles tell you nothing about your housing. Next, look at how the adapters attach to the tube. A pin, threaded or captured connection keeps the adapter in place, while a loose fit can slip off or wobble under load. Tube length and wall thickness are a trade-off: a longer tube reaches deeper housings but may hit nearby parts, and a thin wall fits tight spaces but can flex. Most tools use a half-inch drive, and some add a hex on the tube for a wrench.

Side-entry or open-ended adapters help where a full tube cannot pass over the tie rod, but they can change the effective torque reading. Material claims are hard to verify from a listing, so judge quality by how precisely the adapters fit your housing, the warranty terms and whether replacement adapters are sold separately. A fitted case also helps keep a multi-piece set complete.

Limitations and ownership costs

The tool only turns the inner joint. It does not separate the outer tie rod end, release staking, replace the boot or set toe. It also cannot guarantee removal of a badly corroded joint, and using heat to free one risks damaging the rack seals. Use an impact wrench only if both the tool maker and the service information allow it, because the hammering can reach the rack and pinion.

Plan for costs beyond the tool itself: boot clamps, lock washers or pins, cotter pins, possibly a new boot or outer tie rod ends, thread locker where specified, a torque wrench in the right range, a separator, and the alignment afterward. Upkeep is simple. Wipe the adapters after use, check them for spread or rounded edges, and retire any adapter that slips on a housing it should fit.

Build a practical shortlist

Before comparing products, write down your housing type and measured size, whether the joint is staked or pinned, the clearance around the rack, your drive size, and whether you will need an offset adapter and a torque correction. Then check each candidate against that list, along with adapter retention, the availability of replacement adapters and the seller's return terms in case the fit is wrong. A smaller kit that includes your exact adapter is more useful than a large set without it. If no tool fits your clearance or housing, removing the rack or having a shop do the work may be the more practical choice.