Accessories

RWD/4WD Conversion Spool Subaru STi

Suitable for:

Easy conversion of STi TY856 gearbox to RWD or permanent 4WD application.

Specification

Subaru conversion spools are smart tools which convert your car to rear wheel drive or to permanent four wheel drive. This is achieved by replacing DCCD with XSHIFT spool, that provides direct connection of gearbox output shaft and transfer input shaft.

Suitable for 1000+ Nm engines - drags, drifts, autocross etc. 

  • Suitable for Subaru STi 6 speed manual transmission
  • No need for additional gearbox adjustments
  • Possibility to purchase a set of plugs for RWD type
  • Versions with or without oil pump
  • RWD and permanent 4x4 option

DCCD - Advanced WRX STi Models 

  • 2005–: with oil ring; older DCCD type
  • 2006–2008: with oil ring; newer DCCD type
  • 2008 and newer models: without an oil ring; new gear design

Visco – base models of the WRX STi and Legacy

  • 2005–: with an oil ring; viscous differential
  • 2008+: without an oil ring 
Notice on Using a 4x4 Spool

When using 4x4 conversion spools in place of a DCCD/visco differential, the following limitations must be considered:

  • It is important to note that if the handbrake is applied, issues may occur. Because the drivetrain is locked between the front and rear axles, you must press the clutch when pulling the handbrake — otherwise, all four wheels would lock.
  • In Rally2 cars without a center differential, this situation is handled by an electromagnetic clutch located in front of the rear differential, which disconnects the rear axle when the handbrake is used.
  • If driver do not use the handbrake, this is not a problem. It is still essential to correctly set the brake balance, since during braking, the front wheels may also transfer braking force to the rear wheels through the drivetrain.
  • Due to these facts, 4x4 spool is more suitable for drag (straight roads) or mud/autocross (permanent wheel slippage). For standard rally, track, and street use, it is more advisable to keep the center differential. 

 

RWD plugs

Convert your STi to RWD easily and quickly to 100% torque transmit to rear axle easily with additional set of plugs.These plugs are used to blind the front axle shafts (front sealings must be removed), and also to blind the hole for the DCCD cable on the middle case. 

Kit is suitable for drift purposes, STi gearbox swaps to another RWD vehicles, or as a mod for 2WD dyno tuning. 

The set can be configured from following items:

  • RWD plugs - blinding front axle shafts and DCCD cables
  • RWD spool - direct replacement for OEM DCCD 2005-/2006+
  • After installing SHD drop gears also possible replacement for OEM visco differential
  • Recommended to combine with X Shift SHD drop gears
  • Can be easily installed without removing the front differential

Set is great to install with X Shift sequential gearboxes. It can also be installed in OEM TY856 6MT syncho gearbox, or aftermarket dogbox H-pattern kits, so it is suitable for a wide range of customers. Make your STi a drift machine!

Product configurator

For prices and more info, please contact us down below.

Please fill in your details and as many information as possible about your car (power, race purpose). After sending your configuration we will contact you as soon as possible.

RWD spool is not compatible with viscous differential - if you have viscous differential, you need to purchase drop gears DCCD type 2005- or 2006+

X Shift Gearboxes sample catalog mockup
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