05 · Transmission

Four speed gearbox

GearboxFour speed gearbox · page 1 of 2

FOUR SPEED GEARBOX

Ratios

NOTE : The speeds stated are for vehicles equipped with 165 R 14 XCA tyres, the developed tread-band length of which, under load, is 1.89 metres.

Gearbox for type XM7-T engine = BV : 2 GE 05 → 10/81

Gear	Gearbox ratio	Final drive ratio	Overall reduction ratio	Speed in km/h (mph) per 1 000 engine rpm
1	(11/41) 0.2683	(12/62) 0.1935	0.0519	5.89 (3.7)
2	(18/35) 0.5143		0.0995	11.28 (7.0)
3	(28/35) 0.800		0.1548	17,55 (10.9)
4	(35/29) 1.206		0.2336	26,48 (16.4)
R	(13/41) 0.3170		0.0613	6,96 (4.3)

Speedometer drive ratio : 15 x 29

Gearbox for type XM7-T = B.V. : 2GE 12 → 1/86 - 2GE 81 → 1/8 → 7/86
engines U25/651 and U25/661 = B.V. : 2GE 03 → 1/86 and 2GE 82 → 7/86

Gear	Gearbox ratio	Final drive ratio	Overall reduction ratio	Speed in km/h (mph) per 1 000 engine rpm
1	(11/41) 0.2683	(13/62) 0.2096	0.0562	6,38 (4.0)
2	(18/35) 0.5143		0.1078	12,22 (7.6)
3	(28/35) 0,800		0.1677	19.09 (11.9)
4	(35/29) 1.206		0.2530	28,69 (17.8)
R	(13/41) 0.3170		0.0665	7,54 (4.7)

Speedometer drive ratio : 15 x 29

1 A : Possible variation of differential bearing retaining system.

Assembling the gearbox housing sections :

Sealing : Coat the final drive housing joint faces with jointing compound.

Recommended tightening torques (identical on five speed gearbox).

Torque	m.daN	Nm	lbf ft
Drain and filler plugs	4	40	30
Final drive housing assembly nuts (Ø = 8 mm)	2,8	28	21
Final drive housing assembly nuts (Ø = 10 mm)	5	50	37
Gear selector shaft ring nut	12	120	88
Shift fork shaft bolts	2,8	28	21

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