Trailing Arms – Van Steel https://blog.vansteel.com Fri, 10 Jan 2025 14:52:20 +0000 en-US hourly 1 https://wordpress.org/?v=6.7.1 https://blog.vansteel.com/wp-content/uploads/2022/03/cropped-site-icon-32x32.jpg Trailing Arms – Van Steel https://blog.vansteel.com 32 32 Offsets vs Factory Trailing Arms https://blog.vansteel.com/2025/01/offsets-vs-factory-trailing-arms/?utm_source=rss&utm_medium=rss&utm_campaign=offsets-vs-factory-trailing-arms Wed, 08 Jan 2025 16:13:33 +0000 https://blog.vansteel.com/?p=726 65-82 Corvette rear trailing arms and how offset t-arms work.

Our standard offsets and coilover t-arms offer 2″ of additional backspacing for aftermarket wheels. By moving the parking brake bracket to the top of the arm we gain one Inch, then we offset the entire t-arm between the pivot mount and the bearing mounting surface another inch for max wheel and tire clearance of an additional 2″ over factory trailing arms. The bearing assembly, camber/strut rod, and half shafts remain in the factory location.

These arms are also stronger than factory arm and can’t hold water/moisture like factory arms where they are prone to rusting from the inside-out. Our bearing pivot mount reduces binding in the system which allows for better ride on the street and better handling for the track. Finally, the bearing is held in by a snap ring so it is easily replaced if it wears out. For max wheel and tire clearance, we suggest converting to coilovers which eliminates any leaf spring clearance issues. With our standard offset trailing arms, you may need a shortened composite spring to clear your new wheel and tire package. See our wheel and tire chart for C2 and C3 Vette size options.

Offset t-arm on top, Factory t-arm on the bottom to show offset difference.


The offset area difference compared to a factory trailing arm behind it
Ruler showing the clearance area on a factory t-arm


Ruler showing the clearance area on an offset t-arm/coilover arm
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T-Arm Rebuilding https://blog.vansteel.com/2022/02/t-arm-rebuilding/?utm_source=rss&utm_medium=rss&utm_campaign=t-arm-rebuilding Thu, 24 Feb 2022 20:24:39 +0000 http://blog.vansteel.com/?p=44

What is in a Van Steel t-arm rebuild? First off, all our assemblies whether new or used are built the same. It’s all starts with properly prepared parts. Our used assemblies are completely torn down to bare metal. All races, seals, bushings, and paint is removed. We fully inspect these parts in their raw form for accuracy.

Bearing assemblies are checked for cracks, weld repairs, straightness, and for spun races. Spindles are checked for their bearing surface diameter for the inner and outer bearings. The threads are checked for mushrooming and if they are stripping out. Finally the spindles are checked for a run out on the face of spindle for less than .005. This ensures proper pad contact on the rear brakes due to the Corvette’s fixed caliper setup.

The Trailing arms are also completely stripped down to inspect for cracked welds and internal rusting. They are also jigged to insure they are straight and are visually inspected that they are not twisted. These last two measure are for extended bushing life and for proper alignment.

Finally, the caliper mounting bracket is inspected that it is free of cracks, is not bent (typically from the car bottoming out), and that the threads are clean and straight.

If any parts fail QC, we revise your quote with the new parts for you to review and approve. The parts then go to paint and powder coating. The bearing support, caliper mounting bracket and spindle are all primed and painted with epoxy paint. The trailing arm is powder coated gloss black.

All the freshly painted piece then go into assembly. We only use the highest quality parts available. These consist of Timken bearings and races plus SKF seals. The bearing support is then loaded and built to Van Steel spec, much tighter than GM specs. This is the heart of the Van Steel rebuild and our lifetime guarantee for your bearing assembly.

From here we mount the bearing support to the trailing arm, install the caliper mounting bracket, install the parking brake shoe retaining pins in the backing plate and install the backing plate. The parking brake retaining block and bolt are installed along with the shoes and hardware. We then bolt down the trailing arm to secure the assembly. The spindle is pressed in next to nearly complete the process.

The final step is also very critical. We mount the rotor and preform a final rotor run out. The parking brake adjust holes on the rotor and spindle are aligned to make your parking brake adjustments easier once you receive the trailing arms. If the rotor run out is under .005, we mark the spindle and rotor so the rotor is always installed matching this mark if ever removed for maintenance.

If a spindle flange is included, it is also inspected for excessive wear and that the bolt hole are straight and clean. The flange is then torqued down to a minimum of 100 ft lbs. If the cotter pin holes don’t line up, it’s torqued down further until they do.

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