Front suspension - hydrolastic

Upper Support Arms
All Saloons 1964-69; Cooper S Mk III, Clubman Saloon and 1275 GT 1969-71
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
1	21A1479	UPPER ARM ASSEMBLY, RH	1
	21A1479P	UPPER ARM ASSEMBLY, RH	1
	21A1482	UPPER ARM ASSEMBLY, LH	1
	21A1482P	UPPER ARM ASSEMBLY, LH	1
2	UHN445	NIPPLE, grease, 45 degree angle	2
3	MSK213S	REBUILD KIT, upper arm (services one arm)	2
4	88G302	BEARING, needle roller	4	Included in upper arm assemblies and rebuild kit.
5	2A4325	SHAFT, upper arm	2	Included in rebuild kit.
6	2A4326	COLLAR, thrust	2	Included in rebuild kit.
7	2A7324	WASHER, thrust	2	Included in rebuild kit.
8	2A7327	SEALING RING, rubber	4	Included in rebuild kit.
9	FNZ508	NUT, shaft securing	4	Included in rebuild kit.
10	LWZ208	WASHER, locking	4	Included in rebuild kit.
11	2A4327	PLATE, shaft retaining	2	Included in rebuild kit.
12	SH604051	SCREW, plate to subframe	4
13	LWZ204	WASHER, locking	4
14	FNZ104	NUT	4
15	2A4267	BUFFER, rebound	2
16	PMZ308	SCREW, buffer to subframe	2
17	C-AJJ4007	BUMP STOP KIT, uprated	1	For fast road or competition use.

Swivel Hubs
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
18	21A371	HUB, swivel, RH	1	Drum braked models.
	FAM2390	HUB, swivel, RH	1	Disc braked models.
	21A372	HUB, swivel, LH	1	Drum braked models.
	FAM2391	HUB, swivel, LH	1	Disc braked models.
19	LN10051	NIPPLE, grease, straight	2
20	21A73	ARM, steering, RH	1	All Mk I models 1964-67, except Cooper S.
	BTA896	ARM, steering, RH	1	All models 1967 on, except Cooper S and 1275 GT.
	BTA894	ARM, steering, RH	1	Cooper S and 1275 GT.
	21A74	ARM, steering, LH	1	All Mk I models 1964-67, except Cooper S.
	BTA897	ARM, steering, LH	1	All models 1967 on, except Cooper S and 1275 GT.
	BTA895	ARM, steering, LH	1	Cooper S and 1275 GT.
21	2A4315	SCREW, steering arm to swivel hub	4
22	2K5377	LOCKTAB, steering arm screw	2
23	FAM6924	DOWEL, steering arm locating	4
24	GSJ166	SWIVEL BALL JOINT KIT (one kit per swivel hub)	2
	GSJ166OE	SWIVEL BALL JOINT KIT (one kit per swivel hub)	2
25	21A370	SPRING, ball joint	2	Included in swivel ball joint kit.
26	2A4238	LOCKTAB, ball joint	4	Included in swivel ball joint kit.
27	21A105	SHIM, ball joint, 0.002"	A/R
	2A4239	SHIM, ball joint, 0.003"	A/R	Included in swivel ball joint kit.
	2A4240	SHIM, ball joint, 0.005"	A/R	Included in swivel ball joint kit.
	2A4241	SHIM, ball joint, 0.010"	A/R	Included in swivel ball joint kit.
	21A529	SHIM, ball joint, 0.020"	A/R
28	BTA377	COVER, dust	4	Included in swivel ball joint kit.
29	FNZ507	NUT, ball joints to suspension arms	4	Included in swivel ball joint kit.
30	LWZ207	WASHER, locking	4

Lower Wishbone Arms and Tie Rods
Since the mid-1960s the standard lower arms listed here, which accept tapered bushes with steel inserts, have been the only ones available to buy. The arms that preceded them were fitted with 'top hat' bushes without inserts. If you are working on an early 1960s Mini it is of course vital to purchase the correct bushes for your type of lower arms. If you haven't got the bushes to hand to determine which you need (or they're too mangled to recognise...), a quick rub with a wire brush on one of the lower arms will reveal a forging number - a tapered bush type arm will be marked '21A1879/81'.
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
31	21A1879	LOWER ARM, standard, RH	1	Accepts tapered bushes only.
	21A1881	LOWER ARM, standard, LH	1	Accepts tapered bushes only.
32	C-AJJ3364	LOWER ARMS, 1.5 deg. negative camber, pair	1	For fast road or cometition use.
33	C-AJJ3363	LOWER ARMS, adjustable, with sperical joints, pair	1	For competition use.
34	2A4294	BUSH, lower arm, top hat section	4	For original early 1960s lower arms only.
35	21A1882	BUSH, lower arm, tapered section	4	For all other standard lower arms.
36	C-STR631	BUSH KIT, lower arm, uprated, offset centres	1	For negative camber lower arms.
37	2A4362	SHAFT, lower arm	2
Another early 1960s Mini suspension feature was the use of straight lower arm shafts (instead of having the more customary dip in them). The later lower arm shafts are a direct replacement for the early items.

Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
38	FNZ506	NUT, shaft to subframe	2
39	LWZ206	WASHER, locking	2
40	8G4249	TIE ROD ASSEMBLY, standard	2
41	21A450	TIE ROD, standard	2	Included in standard tie rod assembly.
42	21A1091	TIE RODS, adjustable, uprated thickness, pair	1	For fast road or competition use.
43	C-AJJ3365	TIE RODS, adjustable, with spherical joints, pair	1	For competition use.
44	53K1031	BOLT, tie rod to lower arm	2	Included in standard tie rod assembly.
45	LWZ205	WASHER, locking	2	Included in standard tie rod assembly.
46	FNZ505	NUT	2	Included in standard tie rod assembly.
47	31G1155	BUSH, tie rod	4	Included in standard tie rod assembly.
48	C-STR629	BUSH KIT, tie rods, uprated, set of 4	1	For fast road or competition use.
49	2A4328	WASHER, cup	2	Included in standard tie rod assembly.
50	PWZ207	WASHER, plain	2	Included in standard tie rod assembly.
51	GHF224	NUT, nyloc, tie rod to subframe	2	Included in standard tie rod assembly.

Hydrolastic Suspension
All Saloons 1964-69; Cooper S Mk III, Clubman Saloon and 1275 GT 1969-71
Ill. No.	Part No.	Description	Qty. Rqd.	Remarks
52	21A2008	DISPLACER UNIT, including hose and dust excluder	2	Not Cooper S, 1275 GT or Police models.
	21A2012	DISPLACER UNIT, including hose and dust excluder	2	Cooper S models.
	21A2010	DISPLACER UNIT, including hose and dust excluder	2	1275 GT and Police models.
53	21A1496	DUST EXCLUDER, displacer	2
54	21A1515	SLEEVE, hose protection	2
55	21A1487	RETAINER, sleeve	2
56	GSV1118	KNUCKLE JOINT ASSEMBLY	2
57	21A425	COVER, dust	2	Included in knuckle joint assembly.
58	21A423	SOCKET, joint	2	Included in knuckle joint assembly.
59	21A1845	WASHER, spacing	A/R	Usually automatic models; use to raise suspension height.
60	21A1522	PLATE, adaptor, RH	1
61	ALA5557	BRACKET AND ADAPTOR PLATE, LH	1	1964-67, accepts fuel pipe.
	ALA6599	BRACKET AND ADAPTOR PLATE, LH	1	1967-71.
62	21A1524	ADAPTOR, hose to Hydrolastic pipe	2
63	17H8236	NUT, adaptor to plate	2
64	LWZ410	WASHER, shakeproof	2
65	21A1687	BRACKET, displacer to subframe	2
66	14A7031	PLUG, bracket	2
67	13H2776	SCREW, bracket to subframe	4
68	PWZ203	WASHER, plain	4
69	21A1575	PIPE ASSEMBLY, Hydrolastic, RH, steel	1	Includes union nuts.
70	21A1577	PIPE ASSEMBLY, Hydrolastic, LH, steel	1	Includes union nuts.
	21A1577C	PIPE ASSEMBLY, Hydrolastic, RH or LH, copper	2	Alternative to original steel pipes.
	21A1577N	PIPE ASSEMBLY, Hydrolastic, RH or LH, nylon	2	Alternative to original steel pipes.
	HCP038	PIPE, Hydrolastic, copper, per metre	A/R	Alternative to original steel pipes.
71	HLPN001	NUT, union, Hydrolastic pipe	4
72	21A1582	SLEEVE, pipe protection, split	10
73	13H201	CLIP, sleeve	2
74	21A1598	BUFFER, bump	2
75	BH604201	BOLT, buffer to upper arm	2
76	LWZ204	WASHER, locking	2
77	FNZ104	NUT	2

...and a little curiosity:
While Hydrolastic suspension Minis officially didn't have shock absorber mounting brackets fitted to them, most of the Clubmans and Cooper S Mk IIIs built between 1969 and 1971 carried them - even though they were completely redundant! For details on the shock absorber brackets, please see the 'Front Suspension - Rubber Cone' section.

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Front suspension - hydrolastic

NUT-1/2'' UNF HIGH TENSILE-(GRADE 3)

SEALING RING-RADIUS ARM/ TOP SUSPENSION ARM

WASHER-THRUST-TOP ARM/ RADIUS ARM OUTER END

COLLAR-THRUST-TOP SUSPENSION ARM

SHAFT- TOP SUSPENSION ARM

BEARING-IDLER GEAR-3 SYNCHRO / TOP SUSPENSION ARM

REBUILD KIT-TOP SUSPENSION ARM

GREASE NIPPLE- 45 DEGREE-1/4'' UNF

WASHER-SPRING,3/8''

PLATE-BULKHEAD-LH-ACCEPTS HYDRO & FUEL PIPE-(WET)

USE: ALA6599

NUT - 1/4" UNF

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