3. Toyota V6 to GM Bellhousing Adapter

MANUAL 5 SPEEDS (1986-1995):
These transmissions can be identified by transmission codes R150F and R151F. The R150 transmission is normally coupled to the 3.0 Toyota V6, and the R151F is coupled to the turbocharged 4 cylinder. Both of these transmissions have the same input shaft length, spline, and bolt pattern. We manufacture one bellhousing that will adapt these two transmissions to a Chevy 4.3 V6, V8, and Buick V6.

Our new 360 degree aluminum bellhousing, PN712561, bolts directly to a Chevy or Buick engine block and accepts the original Toyota 5 speed transmission. This bellhousing is designed to work with a 10-1/2” flywheel & clutch assembly. A standard Chevy starter for the 10-1/2” flywheel will work in this bellhousing. If your engine of choice only had a 168 tooth flywheel option, our bellhousing will fit the larger diameter flywheel; however, you must use a hi-torque starter that does not have a nose cone. Engine blocks that may require the use of the 168 tooth flywheel are the late model 4.3 V6s and the new Vortec blocks. We offer a new hi-torque starter for these engines. PN22-0001 fits both the 4.3 V6 and Chevy V8 blocks.

These Toyota 5 speeds use a dowel pin alignment when connecting to a bellhousing. When installing one of our conversion bellhouings, it is imperative that the two dowel pins be retained on the 5 speed for properly indexing. Your 5 speed transmission will retain the stock input shaft bearing retainer. This retainer provides the collar for the release bearing. The diameter of this retainer is identical to a Chevy, thus allowing you to use a stock Chevy release bearing.

Each bellhousing kit is furnished complete with a dust cover, custom pilot bushing, modified release arm, ball pivot, and necessary hardware. This kit does not include a clutch disc, slave cylinder, release bearing, and pressure plate. The items must all be purchased separately. The Toyota input shaft has a 1-1/8"-21 spline, requiring a special clutch disc. Centerforce Clutches manufactures for us a special 10-1/2” clutch disc with a 1-1/8”-21 spline, PN716105. This disc will work on a stock 10-1/2” 153 and 168 tooth Chevy flywheel or a 10-1/2” 160 tooth Buick flywheel. This bellhousing was also designed to work with the Centerforce high diaphragm pressure plate, PNCF360056 (10-1/2”) or PNCF165552 (11”). These pressure plates provide ample clearance in our bellhousing and work well with the Toyota Land Cruiser slave cylinder used in this conversion. The clutch release mechanism is designed to use a Toyota Land Cruiser slave cylinder. This slave cylinder bolts directly to the side of our bellhousing and connects to a modified GM cast iron release arm. We carry this Land Cruiser slave cylinder under PN716213. When purchasing the Centerforce clutch components, you will also be required to purchase a flat-face release bearing, PNN1430.

When retaining the R150F transmission, you will be required to modify your driveshafts. On applications replacing the turbocharged 4 cylinder and retaining the R151F transmission, driveshaft modifications may or may not be required.  R150 5 SPEED  712561 with 5 SPD.


The bellhousings listed above are designed for a 10-1/2”, 153 tooth clutch and flywheel assembly. Since some of the later model GM blocks only have a 168 tooth flywheel option, we also provide our bellhousings with clearance to accept a 168 tooth flywheel and clutch components. The only requirement when using a 168TH flywheel is that a hi-torque starter with no nose cone must be used. In addition, The bellhousing kits are slightly different. The bellhousing kits should have a “V” added to the kits listed above. PN712560V.

enterforce Clutch Components: In order to use the hydraulic clutch control mechanisms, you must make sure that your clutch is a high diaphragm design. The recommended clutch size is 10-1/2" for both the Chevy and Buick installations. The Centerforce clutches and flywheels listed below are the recommended components when using our bellhousings. We design our adapter kits around the Centerforce clutch design. If clutch components from other manufacturers are used, we cannot guarantee proper clutch operation.

For transmission conversions that are retaining the original 5 speed, it is recommended that you use a 10-1/2" clutch with a 153 tooth flywheel. Some later model Chevy blocks only came with a 168 tooth flywheel option. Our bellhousing can be used with this larger flywheel; however, a hi-torque starter without a nose cone is required. On Buick V6 conversions, the flywheel will be 10-1/2” 160 tooth. For conversions using a new transmission, you will be able to use either size flywheels.   TOYOTA 5 SPEED with 716213 & CUSTOM EXHAUST

Clutch assembly:

PNCF360056 - 10-1/2” High profile pressure plate
PNCF165552 - 11” High profile pressure plate
PN716105 - 10-1/2” 1-1/8” 21 spline clutch disc
PNN1430 - Flat-face throw out bearing
PN716231 - Clutch alignment tool 1-1/8” 21 spline


PNCF700100 - 153 tooth GM flywheel (up to 1985 blocks)
PNCF700170 - 153 tooth GM flywheel (1986 & up blocks)
PNCF700120 - 168 tooth GM flywheel (up to 1985 blocks)
PNCF700160 - 168 tooth GM flywheel (1986 & up blocks)
PNCF700010 - 160 tooth Buick flywheel ( flywheel should be balanced to crank.)

Starters: PN22-0001 - Hi torque starter (no nose cone) Chevy V6 & V8s

PN22-0003 - Hi torque starter (no nose cone) 153T flywheels

Slave Cylinder: We have designed our new bellhousing assembly around the exclusive use of a Toyota Land Cruiser slave cylinder assembly. This slave cylinder, PN716213, is not furnished with the adapter bellhousing and can either be purchased separately from us or from your Toyota dealership under Part No. 31470-60022. This slave cylinder will bolt directly onto the new bellhousing. The stock Toyota Land Cruiser push rod cannot be used; however, our bellhousing kits come with a new adjustable push rod for the slave cylinder. The fitting size on the Land Cruiser slave cylinder will interchange directly with the original Toyota master cylinder clutch line.

Note: The stock Toyota master cylinder has a cylinder bore of .625”. The stock Toyota slave cylinder, which couples to the master cylinder, has a cylinder bore of .8125”. The new Land Cruiser slave cylinder has a cylinder bore of .750”. This new Land Cruiser slave cylinder will actually obtain more throw than the stock Toyota slave cylinder.

PN716213 - External Slave Cylinder (Toyota No. 31470-60022)

Driveshafts: Whenever possible, we have designed our bellhousings and transmission-to-transfer case adapters using a length that is compatible with the existing transfer case location. By leaving the transfer case in the original location, driveline modifications can be eliminated. On vehicles using the original 5 speed transmission replacing the stock 4 cylinder (carbureted or EFI), driveshaft modifications can usually be avoided. Vehicles replacing the stock V6 and retaining the 5 speed will require driveshaft modifications. Vehicles replacing the turbocharged 4 cylinders may or may not need driveshaft modifications.


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