PARTS LISTS FOR MK8/9 GEARBOXES

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Parts List - Mark 8/9 Four Speed Gear Train & Layshaft Assembly

Number

Part Number

Description

Price UK Pounds each

Qty requ'd

1

 HC8-221

Crown Wheel & Pinion (Pinion Shaft only shown)

£

1

2

 HC8-226-2

Shim

 £

 1

3

 HC8-4-231

 Reverse Sliding Gear

 £

 1

4

 HC8-4-226

Front Hub 4 Speed

 £

 1

5

 see below

1st Pinion Gear

  £

 1

6

 FT-226-1

 Needle Bearing

  £

 1

7

 HC-232

Clutch Ring

  £

 1

8

 HC8-227

 Centre Hub

  £

 1

9

 see below

2nd Pinion Gear

  £

 1

10

 FT-226-1

Needle Bearing

  £

 1

11

see below

 3rd Pinion Gear

  £

 1

12

 FT-226-1

Needle Bearing

  £

 1

13

 HC-232

Clutch Ring

  £

 1

14

 HC8-228

 Rear Hub

  £

 1

15

 FT-226-1

Needle Bearing

  £

 1

16

 see below

4th Pinion Gear

  £

 1

17

 HC-229-4

 Thrust Washer 5th Gear

  £

 1

18

 HC8-234-1

Needle Bearing

  £

 1

19

see below

Layshaft Integral 1st Gear (4 speed)

 £

 1

20

HC-234-6

Spacer

 £

 1

21

see below

2nd Input Gear (Std Gear)

 £

 1

22

see below

3rd Input Gear (Std Gear)

 £

 1

23

HC-234-6

Spacer

 £

 1

24

see below

4th Input Gear (Std Gear)

 £

 1

25

HC-234-5

Thrust Washer

 £

 1

26

HC8-229

Inner Track

 £

 1

 

 

Showing Plain Layshaft Set Up

 £

 

27

HC-234

Plain Layshaft

 £

 1

28

HC9-238

Reverse Input Gear

 £

 1

29

HC9-238-1

Spacer (4 Speed)

 £

 1

30

see below

Input Gear (Std Gear Mk 8/9)

 £

 1

 

Gear Ratios Used in a MK8/9 Gearbox

Part Number

Description

Price UK Pounds each

 

MK8 Gears (4 or 5 speed)

  

MK8-234

1st Layshaft Integral Gear

  £

 MK8-233

2nd Gear (usual use is for 5 Speed)

  £

 MK8-233

Standard Gear

 £

 

MK8 Gears use smaller diameter Layshaft (1.0")

 £

  MK8

Input

Gear

 

 MK5R

Input

Gear

 

MK5R (usual use is for F3 - 5 Speed only)

  

 MK5R-234

1st Layshaft Integral Gear 

  £

 MK5R-233

2nd Gear (5 Speed only)

  £

 MK5R-233

Standard Gear (usual use is for 5 Speed only)

  £

 

MK5R Gears use larger diameter Layshaft (1.125")

  £

 

The Above diagram shows the 4 speed Set Up Using a Standard Gear in 1st Gear place on a Plain Layshaft

 

Here are some more diagrams (for a 4 speed Gearbox) showing other uses with spacers

and by putting Gear Ratios in different places within the Gearbox

The above is showing the comparison of using a 5 Speed 2nd Gear in a 4 Speed Gearbox

(RH at top of diagram shows 5 Speed 2nd Hubbed Gear)

The above diagram Shows a Slide on 1st Input Gear with fixed Reverse Input Gear,

followed by the Spacer (HC-234-6)

Another View Showing the Reverse Input Gear (HC9-238)

Spacer (HC9-238-1)

and using a Hubbed Gear (5 speed 2nd)

in 1st Gear place in a 4 Speed Gearbox, instead of a Standard Gear

followed by another Spacer (HC-234-6)

Diagram showing comparison between a

1) Std Input Gear with Spacer (HC-234-6)

and

2) 5 Speed 2nd Hubbed Input Gear (right)

When used in a 4 Speed Gearbox set ups 1) and 2) can be used as direct replacements for each other

But check the set up within the Gearbox to the diagrams below to see where and how they fit into the Gearbox

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