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Introduction

This article provides information on transmission ratios of the gearbox, transfer box and the differentials

Note: For the tyre/road speed calculations, you can use your maths from school or a www.4qd.co.uk/road-speed-calculator/ web calculator;

Jimny gen3

Date	Country	Engine	Gearbox	Gear 1	Gear 2	Gear 3	Gear 4	Gear 5	Transfer Box	High	Low	Final Drive
1998	UK/EU	G13B	Manual	3.652	1.947	1.423	1.000	0.864	Manual	1.320	2.145	3.909
1998	UK/EU	G13B	Auto	2.962	1.515	1.000	0.738	N/A	Manual	1.320	2.145	4.090
2001	UK/EU	M13A	Manual	3.652?	1.947?	1.423?	1.00	0.864?	Manual	1.32	2.145	3.909
2001	UK/EU	M13A	Auto	2.962?	1.515?	1.000?	0.738?	N/A	Manual	1.32	2.145	4.090
2005+	UK/EU	M13AVVT	Manual	4.425	2.304	1.674	1.190	1.000	Electric	1.00	2.002	4.300
2005+	UK/EU	M13AVVT	Auto	2.875	1.568	1.000	0.695	N/A	Electric	1.32	2.643	4.090
2005+	EU	K9K	Manual	4.246	2.357	1.695	1.242	1.00	Electric	1.00	2.002	3.416
2000	JP	K6A	Manual	4.031	2.391	1.513	1.00	0.790	Manual	1.320	2.145	5.375
2000	JP	K6A	Auto	2.902	1.515	1.00	0.736	N/A	Manual	1.320	2.145	5.375
2010	JP	K6A	Manual	5.106	3.107	1.908	1.254	1.000	Manual	1.320	2.643	4.300
2010	JP	K6A	Auto	2.875	1.568	1.000	0.696	N/A	Electric	1.320	2.643	5.375

Practical examples

See below for some practical examples.

2005 VVT manual gearbox Jimny, engine at 4000 RPM and in 5th gear High Ratio, standard wheels

	Engine	Gearbox	Transfer Box	Diff	Wheel
Input	--------	4000 RPM	4000 RPM	4000 RPM	465 RPM
Ratio	--------	1.000	1.000	4.300	28" Tyre
Output	4000 RPM	4000 RPM	4000 RPM	465 RPM	77.7 MPH

2001 M13A manual gearbox Jimny, engine at 3000 RPM and in 1st gear Low Ratio, 30" Tyres

	Engine	Gearbox	Transfer Box	Diff	Wheel
Input	------	3000 RPM	821.4 RPM	382.9 RPM	97.97 RPM
Ratio	------	3.652	2.145	3.909	30" Tyre
Output	3000 RPM	821.4 RPM	382.9 RPM	97.97 RPM	8.7 MPH

2001 M13A manual gearbox Jimny, engine at 3000 RPM and in 1st gear Low Ratio, 30" Tyres with Differential from later VVT

This shows an example of a modified diff with an increase reduction ratio

	Engine	Gearbox	Transfer Box	Diff	Wheel
Input	------	3000 RPM	821.4 RPM	382.9 RPM	89 RPM
Ratio	------	3.652	2.145	4.3000	30" Tyre
Output	3000 RPM	821.4 RPM	382.9 RPM	89 RPM	7.9 MPH

Jimny gen4

Info needed ...

Date	Country	Engine	Gearbox	Gear 1	Gear 2	Gear 3	Gear 4	Gear 5	Transfer Box	High	Low	Final Drive
2019	UK	1.5	Manual	4.425	2.304	1.674	1.190	1	Manual	1	2.002	4.09
2019	UK	Auto	2.875	1.568	1	0.696		Manual	1.320	2.643	4.3

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Page last edited on 18/11/2019 by user Mlines