From Ireland Engineering website:
These are the parts necessary for a Getrag 245 5-speed conversion for your BMW 2002. This transmission is typically found in E21 320i's from 1977-09/1982. -DRIVE SHAFT - Shortened, rebuilt, balanced, and assembled with new center bearing. Option 1: 3-Bolt Nose (depending on the 245's output flange) Option 2: 4-Bolt Nose -Shift Plate and Selector Rod kit - Comes with complete shift plate, rear support hardware, foam isolator pad, shortened selector rod, and selector rod joint and dowel. -Transmission cross member and mount - Comes with HD rubber mount, or optional urethane mount. -Short Shift Lever - or later (post Feb. 1974 build date) shift lever. -Speedo Cable (longer) -Stainless Steel Clutch Line setup - Includes the stainless steel flex line along with the appropriate hard line. -Clutch Set: Pressure plate, disc, and throw out bearing option 1: 228mm (good time to upgrade to a 228mm from 215mm system [just need the 228 flyhweel]) option 2: 215mm **Throw out bearing - If for whatever reason you don't want to replace the entire clutch setup. Option 1: 228mm Option 2: 215mm -Guibo (flex disc) Option 1: 6 hole (for 3 bolt drive shaft) Option 2: 8 hole (for 4 bolt drive shaft) -Brass Clutch Pivot Pin: NOT required but The factory clutch pivot pin is made from plastic and wears over time. Replacing the pivot pin with the brass pin while the transmission is out is a good idea. -Clutch Slave Cylinder: The Clutch Slave on the getrag 245 mounts to the outside of the bell housing. Related Item(s) Code Name Price Availability 025spshaft3 Shortened 3-bolt Drive Shaft for 5-speed Conversion $395.00 Each. 025spshaft4 Shortened 4-bolt Drive Shaft for 5-speed Conversion $325.00 Each. 02shaftguibo Drive Shaft Guibo (flex disc) 8 bolt $44.00 Each. 02shaftguibo6bolt Drive Shaft Guibo (flex disc) 6 bolt - 5 Speed $44.00 Each. 025spplate Shift Plate for 5-speed Conversion $152.00 Kit. Out of Stock. 025spcross Rear Cross Member for 5-speed Conversion $110.00 Each. 025spgl Short Shift Gear Lever for 5-speed Conversion $110.00 Each. 025spcable Long Speedo Cable for 5-speed Conversion $75.00 Each. Out of Stock. 025spline Long Clutch Line for 5-speed Conversion $30.00 Each. 02c228 215mm Clutch Kit - 5-Speed Conversion - for 2002 and Tii $255.00 Kit. 02cs5sp Clutch Slave Cylinder for 5-speed Conversion $39.00 Each. 02tii228 228mm Clutch Kit - 5 Speed Conversion - for 2002 and Tii $355.00 Kit. 025spto215 215mm Throw-out Bearing for 5-speed $38.00 Each. 025spto228 228mm Throw-out Bearing for 5-speed $86.00 Each. pivotpin Brass Performance Clutch Pivot Pin $19.50 Each.