| T O P I C R E V I E W |
| mike L |
Posted - 22 Aug 2011 : 02:54:59
Something we rarely consider but when we do the idea of the rear axle locking up sends a wave of fear down one's spine. If the gubbins in the middle of the axle breaks a tooth and locks the differential on the motorway we can imagine the mess it would make and hope it will never happen. Most of us watch for rear oil leaks and have changed the oil at some stage so thanks to the tough Rootes design we rarely hear of broken diffs or noisy axles amongst club members. Over the years I haven't been asked for these parts much but slowly as people have ordered axle shafts or other components I have had to check on the interchangeability. There are plenty of combinations so below will be my attempt to make sense of it all.
Series 1 Rapier axle shaft 5220305 (17 spline) (Spiral bevel diff) code on end of shaft B
Series 2 as above
Series 3 as above up to B3011642
Series 3 5220335 0/S (17 spine) (Hypoid diff) from B3011643 to B3055142 code on shaft C
Series 3 5220336 N/S (17 spline) (Hypoid diff) from B3011643 to B3055142 code on shaft A
Series 3A /4 5220525 O/S from B3055143 through to ser 4 (Hypoid diff) (25 spline) code on shaft H
Series 3A/4 5220526 N/S from B3055143 through to ser 4 (Hypoid diff) (25 spline) code on shaft D
Series 5 5220958 O/S From b32500001 (25 spline) (Hypoid diff)
Series 5 5220959 N/S From B32500001 (Hypoid diff) (25 spline)
rear wheel bearing has integral oil seal on this last version, on the minx 1966 it also has deeper hub and the spacer plate attached to the brake drum is no longer fitted, the drums fitted are no longer "dished". To summarise the outer axle parts on 1966 minx & gazelle are different to earlier models. On rapier Super minx Scpetre the outer bearing is different but they keep the older style drum. The minx gazelle 5 have a spacer attached to the rear drum to provide a wider rear track. this is acheived on the 1966 models by changing hub and drums. So this hub and drums set up is unique to 1966 minx gazelle models and provides a wider rear track.
these above halfshafts/ rear axle casings are also fitted to the equivalent year Singer Gazelle or Hillman Minx
Series 1 Alpine Husky and Cob half shaft 5220305 1959 to 1962 (17 spline) (Hypoid) stamped B
Series 2 Alpine 5220523 also fitted to Super Minx, Husky, Cob, Sceptre and Vogue 1962 to 1964 (Hypoid 25 spline) stamped letter E
Series 5 alpine 5220957 also fitted to Super Minx ,Husky, Cob, Sceptre and Vogue 1965 on (Hypoid 25 spline)
Axle casings;- all diffs will fit all axle casings but halfshafts lengths vary according to casings
1201889 Rapier ser 1 to 3 up to B3011642 goes with handbrake cable P111888
1218225 Rapier ser 3 and 3A from B3011643 goes with handbrake cable P111888
1223525 Rapier ser 4 from B3300008 goes with handbrake cable 1223576 up to B3304508
1224308 Rapier ser 4 up to B33101186 goes with handbrake cable 1223686 from B330404509 up to B33101274 or B33101186 (o/d)
5220895 Rapier ser 4 from B 33101187 up to B32500000 goes with handbrake cable 1229748
5220962 Rapier ser 5 B32500001 goes with handbrake cable 1229748
Differentials see parts book for more detail
(Rapier overdrive only)
Series 1 Rapier P109010 5.22 to 1 (Spiral bevel 17 spline)
Series 2 Rapier P107365 4.778 to 1 also ser 3 up to B3011642 (Spiral bevel 17 spline)
Series 3 Rapier 1203856 4.86 to 1 from B3011643 up to B3054835 (Hypoid 17 spline)
Seies 3A Rapier 1210126 4.86 to 1 from B3054836 up to B30555142 (Hypoid) (25 spline)
Series 3A Rapier 1210131 from B3055143 up to B3059472 (Hypoid) ( 25 spline0
Series 3A Rapier 1218814 4.86 to 1 from B3059473 up to B3062491 (Hypoid 25 spline)
Seies 3A Rapier 1218858 4.44 to 1 from B3062492 (Hypoid 25 spline)
Series 4 Rapier 1239719 4.22 to 1 up to ser 5 B325003319 (Hypoid 25 spline)
Series 5 Rapier 1239132 4.22 to 1 from B325003320 (Hypoid 25 spline)
Sunbeam Alpine Ser1 & 2 3.89 to 1 1200576 up to B9108430 (Hypoid 17 spline)
Sunbeam Alpine Ser 2 to 4 3.89 to 1 1239133 up to B9108431 (Hypoid 25 spline)
Sunbeam Alpine Ser 4 3.889 to 1 1210195 (Hypoid 25 spline)
Sunbeam Alpine Ser 5 1239718 3.89 to 1 (Hypoid 25 spline)
Humber Sceptre 1229136 4.22 to 1 up to B132010123 (Hypoid 25 spline)
Humber Sceptre 1239137 3.89 to1 from B312300001 (Hypoid 25 spline)
Hillman Super Minx Mk 1 1210128 4.22 to 1 (2 prong type propshaft) (Hypoid 25 spline)
Hillman Super Minx Mk 2 1218952 3.89 to 1 (2 prong type propshaft) (Hypoid 25 spline)
Hillman Super Minx Mk 2 1210128 4.22 to 1 (2 prong type propshaft) from B1333541 (Hypoid 25 spline)
Hillman Super Minx Mk 3 1203911 4.22 to 1 and Mk4 estate (Hypoid 25 spline)
Hillman Super Minx Mk 4 1219839 3.89 to 1 (Hypoid 25 spline)
Hillman Husky Ser 1 P107365 4.78 to 1 (spiral bevel 17 spline)
Hillman Husky Ser 1 P115907 4.55 to 1 from A2817458 (17 spline spiral bevel)
Hillman Husky Ser2 4.44 to 1 1203855 from B2006757 ( Hypoid 17 spline)
Hillman Husky ser 2 and ser 3 1210144 4.22 to 1 from B2014811 (hypoid 25 spline)
There is a 2 prong prop shaft flange used around 1962/3 it has an odd 4 holed flying saucer type Universal Joint pt no. 5039500 it is used on some models of Rapier 3A B3054836 up to B3059472 and equivalent period Singer Vogue Hillman Super Minx Mk 1 and Mk 2 this odd shaped flange means there are 2 types of differentials for the same axle/halfshaft/casing combination. The diffs would be interchangeable but the flange would need to be swopped over by a specialist or the propshaft swapped over with it's own matching differential.
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