Nissan Fairlady/300ZX Z32 Manual Transmission Spring Insert 3RD & 4TH
Terra Firma Automotive provides genuine Nissan internal transmission parts that restore crisp, positive shifting to your Z32 manual gearbox. This 3rd and 4th gear synchronizer spring insert is the exact OEM component that applies pressure to the synchro keys, enabling quick and smooth speed matching when shifting between third and fourth gear. Manufactured to Nissan’s original specifications with the correct spring tension and material properties, it ensures reliable synchro performance even under repeated hard shifts or high-rpm use.
Worn or collapsed synchro springs are a frequent cause of notchy, grinding, or delayed shifts into 3rd and 4th on Z32 transmissions. This authentic replacement restores the proper detent force and key pressure needed for clean engagement, reducing wear on the synchro rings and gears while bringing back the factory shift feel. It is a small but critical detail that dramatically improves the driving experience once replaced.
At Terra Firma Automotive we focus on supplying these often-overlooked internal pieces that make a major difference during a proper transmission refresh. Whether you are rebuilding the gearbox on your twin-turbo, addressing shifting issues on a naturally aspirated model, or performing a complete synchro upgrade on your 1989–1996 Fairlady Z or 1990–1996 300ZX, this 3rd/4th spring insert helps return the transmission to its original precise and satisfying character.
- 2 Required
- Fits 32602+A Location
- Genuine Nissan OEM 3rd & 4th gear synchronizer spring insert
- Direct fit for all Z32 manual transmissions (NA & TT)
- Correct spring tension for smooth, positive synchro action
- Essential during synchro ring or hub service
- Helps eliminate notchy or grinding shifts into 3rd and 4th
- High-quality material for long service life
- Sold individually (typically 2–3 needed per rebuild)
- USDM 300ZX (Z32): 1990–1996 (VG30DE & VG30DETT – NA or TT)
- JDM Fairlady Z (Z32): 1989–1996 (VG30DE & VG30DETT – NA or TT)
- Engine Compatibility: Fits all VG30DE and VG30DETT engines with manual transmission
- Note: Genuine Nissan 3rd & 4th gear synchronizer spring insert (Part Number 32603-30P00)
Terra Firma Automotive provides genuine Nissan internal transmission parts that restore crisp, positive shifting to your Z32 manual gearbox. This 3rd and 4th gear synchronizer spring insert is the exact OEM component that applies pressure to the synchro keys, enabling quick and smooth speed matching when shifting between third and fourth gear. Manufactured to Nissan’s original specifications with the correct spring tension and material properties, it ensures reliable synchro performance even under repeated hard shifts or high-rpm use.
Worn or collapsed synchro springs are a frequent cause of notchy, grinding, or delayed shifts into 3rd and 4th on Z32 transmissions. This authentic replacement restores the proper detent force and key pressure needed for clean engagement, reducing wear on the synchro rings and gears while bringing back the factory shift feel. It is a small but critical detail that dramatically improves the driving experience once replaced.
At Terra Firma Automotive we focus on supplying these often-overlooked internal pieces that make a major difference during a proper transmission refresh. Whether you are rebuilding the gearbox on your twin-turbo, addressing shifting issues on a naturally aspirated model, or performing a complete synchro upgrade on your 1989–1996 Fairlady Z or 1990–1996 300ZX, this 3rd/4th spring insert helps return the transmission to its original precise and satisfying character.
- 2 Required
- Fits 32602+A Location
- Genuine Nissan OEM 3rd & 4th gear synchronizer spring insert
- Direct fit for all Z32 manual transmissions (NA & TT)
- Correct spring tension for smooth, positive synchro action
- Essential during synchro ring or hub service
- Helps eliminate notchy or grinding shifts into 3rd and 4th
- High-quality material for long service life
- Sold individually (typically 2–3 needed per rebuild)
- USDM 300ZX (Z32): 1990–1996 (VG30DE & VG30DETT – NA or TT)
- JDM Fairlady Z (Z32): 1989–1996 (VG30DE & VG30DETT – NA or TT)
- Engine Compatibility: Fits all VG30DE and VG30DETT engines with manual transmission
- Note: Genuine Nissan 3rd & 4th gear synchronizer spring insert (Part Number 32603-30P00)
Original: $7.27
-65%$7.27
$2.54Description
Terra Firma Automotive provides genuine Nissan internal transmission parts that restore crisp, positive shifting to your Z32 manual gearbox. This 3rd and 4th gear synchronizer spring insert is the exact OEM component that applies pressure to the synchro keys, enabling quick and smooth speed matching when shifting between third and fourth gear. Manufactured to Nissan’s original specifications with the correct spring tension and material properties, it ensures reliable synchro performance even under repeated hard shifts or high-rpm use.
Worn or collapsed synchro springs are a frequent cause of notchy, grinding, or delayed shifts into 3rd and 4th on Z32 transmissions. This authentic replacement restores the proper detent force and key pressure needed for clean engagement, reducing wear on the synchro rings and gears while bringing back the factory shift feel. It is a small but critical detail that dramatically improves the driving experience once replaced.
At Terra Firma Automotive we focus on supplying these often-overlooked internal pieces that make a major difference during a proper transmission refresh. Whether you are rebuilding the gearbox on your twin-turbo, addressing shifting issues on a naturally aspirated model, or performing a complete synchro upgrade on your 1989–1996 Fairlady Z or 1990–1996 300ZX, this 3rd/4th spring insert helps return the transmission to its original precise and satisfying character.
- 2 Required
- Fits 32602+A Location
- Genuine Nissan OEM 3rd & 4th gear synchronizer spring insert
- Direct fit for all Z32 manual transmissions (NA & TT)
- Correct spring tension for smooth, positive synchro action
- Essential during synchro ring or hub service
- Helps eliminate notchy or grinding shifts into 3rd and 4th
- High-quality material for long service life
- Sold individually (typically 2–3 needed per rebuild)
- USDM 300ZX (Z32): 1990–1996 (VG30DE & VG30DETT – NA or TT)
- JDM Fairlady Z (Z32): 1989–1996 (VG30DE & VG30DETT – NA or TT)
- Engine Compatibility: Fits all VG30DE and VG30DETT engines with manual transmission
- Note: Genuine Nissan 3rd & 4th gear synchronizer spring insert (Part Number 32603-30P00)
