2720C10 DIFFERENCIAL UNIT - R.R. - Alfa - 159 - eLearn

939005311 - 2720C10 DIFFERENCIAL UNIT - R.R.

) Op. 4450B13 REAR WHEELS (TWO) - R.R Op. 2720D10 SEMISHAFT WITH LEFT OR RIGHT JOINT (ONE) - R.R. 1. Unscrew the propeller shaft rear mount bolts to the body and recover any alignment spacers.

Take care to use the same alignment spacers on refitting.

2. Mark the position of the constant velocity joint with the RDA flange, unscrew the bolts securing the propeller shaft to the RDA and move aside, securing it to the body.

- Position a hydraulic jack fitted with a suitable tool and support the rear differential.1. Undo the bolts (1a) securing the rear differential (1b) to the suspension crossmember and remove it.2. Undo the bolt securing the rear differential (1b) to the crossmember reinforcement.- Slowly lower the hydraulic jack to remove the rear differential.

Refitting ( Removing

) - Place the rear differential back in its housing using the hydraulic jack.- Tighten the bolt securing the rear differential to the crossmember reinforcement.

Component	Fastening	dia	Value (daNm)	Validity
Rear differential - bracket side	Bolt	M12	9.9 ÷ 12.1	3.2 JTS

- Tighten the bolts securing the rear differential to the suspension crossmember.

Component	Fastening	dia	Value (daNm)	Validity
Rear differential - suspension crossmember side	Bolt	M12	9.9 ÷ 12.1	3.2 JTS

- Remove the hydraulic jack and tool used for supporting the rear differential.- Connect the propeller shaft to the RdA, aligning the reference notches made between the constant velocity joint and the RDA flange on removal.- Tighten the bolts securing the rear constant velocity joint to the RDA, interposing half-moon washers.

Component	Fastening	dia	Value (daNm)	Validity
Propeller shaft - rear differential side	Bolt	M10	5.6 ÷ 6.8	3.2 JTS

- Tighten the bolts in a cross sequence.- Position the rear propeller shaft mount in its seat, interposing any spacers taken out on removal.- Tighten the bolts securing the propeller shaft rear mount to the bodyshell to the specified torque.

Component	Fastening	dia	Value (daNm)	Validity
Bodyshell side propeller shaft rear support	Bolt	M8	2.2 ÷ 2.6	3.2 JTS

Op. 2720D10 SEMISHAFT WITH LEFT OR RIGHT JOINT (ONE) - R.R. Op. 4450B13 REAR WHEELS (TWO) - R.R