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MSG03-31ATB

5 SPEED CLOSE RATIO HELICAL GEARBOX WITH ATB 3.1FD

New for 2023, special heavy duty 2nd and 3rd gears with laygear and 1st motion to match giving a quiet road box suitable for engines producing upto 125lbft of torque on naturally aspirated engines.



Ratios are:



1st=2.583 same as Clubman set

2nd=1.644

3rd=1.250 same as Clubman set

4th=1.00

5th=0.865



3.1 final drive.



Supplied with ATB differential a great road gearbox for performance engines. Warranty on parts only not labour.



Sold on an exchange basis with a surcharge of £400 refundable on return of old unit which must be A-plus and have no damage to case, case fins, sump plug thread and idler gear face.
  • £4,066.26 exc vat
  • £4,879.51 inc vat

 Special order

 
help Recommended usage 1 x MSG03-31ATB to fit one mini.
 
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This kit contains

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MAINSHAFT / THIRD MOTION SHAFT LATE TYPE
DAM7484   More Details
£117.02
(inc VAT) £140.42

THIRD GEAR RETAINING WASHER AND 5TH GEAR FOR ......
22G947   More Details
£13.88
(inc VAT) £16.66

SYNCHRO HUB SPRING. 4 SYNCHRO ONLY
22G2262   More Details
£1.05
(inc VAT) £1.26

OIL PIPE HITECH CENTRAL PICKUP GEARBOX
C-AHT54   More Details
£23.50
(inc VAT) £28.20

REVERSE DETENT O RING ROD CHANGE/BAU5043 SEAL
22G1417   More Details
£0.26
(inc VAT) £0.31

CROWNWHEEL PINION 18 TOOTH FOR 3.4 RATIO PRE ......
22A413   More Details
£60.80
(inc VAT) £72.96

REVERSE GEAR BUSH
TUJ10001   More Details
£4.50
(inc VAT) £5.40

DIFF CROWNWHEEL LOCKTAB
ATA7385   More Details
£2.05
(inc VAT) £2.46

DIFF SHIM 10 THOU
DAM3109   More Details
£0.83
(inc VAT) £1.00

DETENT SPRING FOR ROD BOX
22G2083   More Details
£0.27
(inc VAT) £0.32

ROLLER DOUBLE FOR MAINSHAFT IN GEARBOX. RHP G......
AAU1365   More Details
£54.14
(inc VAT) £64.97

DIFF OUTPUT SHAFT OIL SEAL
ADU5738   More Details
£0.91
(inc VAT) £1.09

DIFF SHIM 6 THOU
DAM3108   More Details
£0.79
(inc VAT) £0.95

GEARBOX DIFF SIDE PLATE GASKET GENUINE MINISP......
GUG705567GM   More Details
£2.03
(inc VAT) £2.44

IDLER NEEDLE ROLLER FOR A PLUS GEARBOX
TUK100320   More Details
£8.25
(inc VAT) £9.90

GASKET DIFF UPPER
2A3505B   More Details
£0.25
(inc VAT) £0.30

SEAL UNDER ROD CHANGE SELECTORS TO GEAR CASE
31B447   More Details
£0.30
(inc VAT) £0.36

GASKET SPEEDO HOUSING INSPECTION GASKET
GUG705564GM   More Details
£0.48
(inc VAT) £0.58

BALL BEARING FOR SYNCHRO HUB 3&4 SYNCHRO
BLS107   More Details
£0.45
(inc VAT) £0.54

GEARBOX OIL PICK UP PIPE GASKET
22A542B   More Details
£0.24
(inc VAT) £0.29

GASKET DIFF LOWER.PRE ROD
2A3506B   More Details
£0.27
(inc VAT) £0.32

FIRST GEAR 4 SYNCHRO ALL MODELS 31 teeth
22G1096   More Details
£105.00
(inc VAT) £126.00

DIFFERENTIAL ROLLER RHP manufacture
AHU1856   More Details
£28.29
(inc VAT) £33.95

COMPETITION STEEL BAULK RING
C-22A1741   More Details
£35.36
(inc VAT) £42.43

SINGLE ROW RHP ROLLER. 4 SYNCHRO
ADU7619   More Details
£34.97
(inc VAT) £41.96

LAYSHAFT A PLUS PERFORMANCE
C-22A1739   More Details
£31.85
(inc VAT) £38.22

CROWNWHEEL + PINION 3.1 RATIO
CWP3-1   More Details
£157.50
(inc VAT) £189.00

SWIFTUNE CLASSIC MINI QUAIFE ATB DIFFERENTIAL
C-AJJ3390   More Details
£679.00
(inc VAT) £814.80