SPL Parts
SPL Parts 07+ G35/G37/370Z/Q60 Rear Mid Links
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SPL Rear Mid Links (RML) replace the stock spring bucket arms to offer complete control over rear toe, rear spring rate, and ride height. The threaded spring perch accepts common 60mm ID springs and allows corner weighting with fine adjustment of ride height. The upper spring perch also has a linear adjustment range to match the spring location and reduce misalignment.
We recommend pairing our midlinks with our eccentric lockout kit (ELT Z34) to eliminate the stock eccentric bolt, which can slip under significant load and ruin your alignment, leading to aggressive tire wear and poor handling in most cases. This also prevents the need to re-align the upper spring seat every time the eccentric is adjusted.
Does not include springs.
Benefits
- Large Range of Toe Adjustment
- Lightweight: 4.828 lbs (2.19 kg) per Side with Upper Perches
- Quickly Change Rear Spring Rates
- Adjust Rear Ride Height
- Less Rear Toe Change from Bushing Deflection
- Maintenance-Free, US Made, PTFE-Lined FK Bearings
Materials
- 6061-T6 Aluminum Arm Body
- 6061-T6 Aluminum Spacers & Spring Alignment Pucks
- 4130 Chromoly Steel Double Adjuster
- 304 Stainless Steel Spring Seats
- Ti-6Al-4V Titanium Hardware (Anodized Blue)
- Swift 60mm Spring Thrust Washers
Noise, Vibration, and Harshness (NVH)
The SPL rear mid links are not a significant contributor to NVH directly, however any aftermarket spring replacement can produces occassional noise during normal operation. Reducing friction at the spring seats to allow the spring to rotate freely will greatly reduce the chances of noise occurring. Nissan/Infiniti also use a spherical bushing on some of the spring bucket arm variations for the Z/G-chassis.
Sold as a pair. One pair per vehicle.
Confirmed Applications
2023+ Nissan Z (RZ34)
2009 - 2020 Nissan 370Z (Z34)
2007 - 2008 Infiniti G35 Sedan (V35)
2008 - 2013 Infiniti G37 Coupe (V36)










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