9"/8.8"/7.5" DIFFERENTIALS AND SPOOL

M-4204-R31/L31 Race only – “Detroit Lockers” positive action ratchet-type differentials for racing M-4204-L31 for large 3.250" bearing.

PART NUMBER	AXLE	SPLINE	DESCRIPTION
M-4204-F3180(2)	8.8"	31 spline	Open Differential
M-4204-F288(2,3)	8.8"	28 spline	Traction-Lok
M-4204-F318(2,3)	8.8"	31 spline	Traction-Lok
M-4204-C75(2,3)	7.5"	28 spline	Traction-Lok
M-4204-A28(2,3,5)	8.8"	28 spline	Auburn HD
M-4204-A31(2,3,5)	8.8"	31 spline	Auburn HD
M-4204-P31(2,3,5)	8.8"	31 spline	Auburn Pro(2)
M-4204-C31	8.8"	31 spline	Trac-tech C-Locker
M-4204-D28	9"	28 spline	Detroit Locker
M-4204-D31	9"	31 spline	Detroit Locker
M-4204-L31(1)	9"	31 spline	Race only – Large Bearing Detroit Locker
M-4204-R31(1)	9"	31 spline	Race only – Detroit Locker
M-4204-T1	8.8"	28 spline	Tru-Trac
M-4204-T2	8.8"	31 spline	Tru-Trac
M-4204-T3	9"	31 spline	Tru-Trac
M-4204-T28(4)	8.8"	28 spline	Torsen Differential
M-4204-T31	8.8"	31 spline	Torsen Differential

NOTE: (1) Off-road use only! (2) Will accept anti-lock exciter ring. (3) Requires 4-ounces of M-19546-A friction modifier with initial fill. (4) M-4204-T28 fits 1999 Cobra Thunderbird/Mark VIII with IRS. (2001 Cobra has 31 spline) (5) Recommended for street use only