1 Glossary ………………………………………………………………………………………………………………………………………………………………………………………………………………………….1 2 General Notes ………………………………………………………………………………………………………………………………………………………………………………………………………………….3 3 Spacers – “As Needed”? …………………………………………………………………………………………………………………………………………………………………………………………………….4 4 Front Springs……………………………………………………………………………………………………………………………………………………………………………………………………………………5 5 Front Aluminum Spacers ……………………………………………………………………………………………………………………………………………………………………………………………………7 6 Front Rubber (& Steel) Pad…………………………………………………………………………………………………………………………………………………………………………………………………9 7 Rear Springs…………………………………………………………………………………………………………………………………………………………………………………………………………………..11 8 Shock Cover / Spacer……………………………………………………………………………………………………………………………………………………………………………………………………….13 10 Rear Aluminum Spacers……………………………………………………………………………………………………………………………………………………………………………………………………14 11 Rear Rubber (& Steel) Pad ………………………………………………………………………………………………………………………………………………………………………………………………..16

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750-101 Suspension Springs Glossary & General Notes Page 1 

1 Glossary

	Dots: #-X + #-X	where # = quantity of dots of stated color,
		where X = B(blue), LtB(light blue), G(green), R(red), Y(yellow), W(white)
	Car Weight: dry, with tools and jack
	Flexibility Rating: means stiffer spring	Alfa Owner, April 1962 had this comment by Ign. Greco, ARI; “The lower the “flexibility index  number” (in parts Catalog) the stiffer the spring. “
	Wire: diameter of wire in millimeters
OD:	outside diameter of spring coil in  millimeters.
Total Coils	Count every 360 degrees as whole  number + fraction if any (180o= ½  coil; 90o= ¼ coil etc.)
Active Coils:	The first active coil begins at the point where the wire pitch departs  from the collapsed coil end. This is  the zero point for counting active  coils. Each full revolution of the  wire counts as one active coil.

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750-101 Suspension Springs Glossary & General Notes Page 2 

Coil Count by   End Type:		OPEN END: the coils are consistent with no pitch change through the end of  the spring  Also called PLAIN ENDS	Total: 6  Active: 6  Active = Total
		CLOSED ENDS, NOT GROUND: the end coils’ pitch is reduced so the end  coils touch  Also called SQUARED ENDS	Total: 7  Active: 5  Active = Total-2
		OPEN & GROUND: last coil ground ‘flat’ in appearance and has a less  parallel end  Also called SQUARED & GROUND	Total: 6  Active: 6  Active = Total
		CLOSED & GROUND: last coil not ‘flat’ in appearance and has a less  parallel end  Also called PLAIN & GROUND  This is what is found on ourGiuliettas.	Total: 7 3/4  Active: 5 3/4  Active = Total-2

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750-101 Suspension Springs Glossary & General Notes Page 3 

2 General Notes 

Publications sources for part numbers by vehicle application: 

∙ #776 (11/1961) 750/101 parts 

∙ #1016 (10/1964) 101-1600 parts 

∙ #1150 (3/1966) 101-1600 Spider Veloce parts 

Publication sources for “free length”, “test load”, and “loaded length”: 

∙ #637 (9/1958) “Giulietta Cars Shop Manual”, this manual lists all “free length” as “=/- 5 mm”; but I do not list that in chart. 

∙ #854 (no date) Enclosure to shop manual (updates for 101 model) 

∙ #1159 (no date) Giulia Spider Veloce, Giulia SS technical characteristics 

∙ #850 9/1962) Giulia 1600 cars / t.i. Spider Sprint / Technical characteristics 

Outside diameter of springs: 

∙ All front springs have the same 

∙ Rear had two diameters. Based on footnote found in publication #776, TAV 87 and TAV 88 the following was deduced: 

∙ 105 mm OD springs Spider up to 1495.03250, Spider Veloce up to 1495.08000, Sprint up to 1493.02800; 

∙ 115 mm after above numbers. (Confirmed by publication #1016 listing only 115 mm for 101-1600) 

∙ 115 mm was used from the beginning for all t.i., SS, and SZ; based on listing for rubber shock gasket/buffer 1365.48.431and bottom buffer 1365.489.424. 

Internet spring rate calculator:  

∙ Note formula uses USA pounds and inches 

∙ Torsional modulus for steel (pounds/inch2): 11,250,000 

∙ Coil spring constant: 8 

∙ Mean Coil Diameter: Outer Diameter – Wire Diameter 

∙ “Spring Rate” formula: “Torsional Modulus” X “Wire Diameter4” / “Coil Spring Constant” X “Active Coils” X “Mean Coil Diameter3” (take note of “power” notation on wire diameter and mean coil diameter 

∙ Another way to write the formula assuming wire size .625”, mean coil diameter 5.00”, active coils 10 

11,250,000 x .625 x .625 x .625 x .625 = 171,661,370 = Spring Rate of 171.66 lbs. per inch 

8 x 10 x 5.0 x 5.0 x 5.0 10,000 

Sufficient data was only available to calculate a couple “Spring Rates”, but those do support Ign. Greco, ARI, 1962 statement: “The lower the ‘flexibility index number’ the stiffer  the spring. “

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750-101 Suspension Springs Spacers – “As Needed”? Page 4 

3 Spacers – “As Needed”? 

The parts manuals indicate specific aluminum spacers for specific springs on specific car models. Is this true? 

On 750-101 Transition Sprint Veloce (1493*E*06920) that appeared to be little altered during its life with two prior owners, it had all the specified springs (color dots), pads, and  spacers; except for the specified spacers on top of the front springs. 

Maybe, at least for Sprint Veloce, the answer may be: “install as needed”. Greig Smith, Sprint expert in S. Africa, has spent considerable effort researching this issue. He once  commented: “Possibly at the end of the assembly line, a Bertone working held a measuring stick up to each car and if the gap at each wheel arch was not correct, spacers were  added as needed.” This concept appears to fit several unmolested Sprints.

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750-101 Suspension Springs Front Springs Page 5 

Part#

Dots

Application

Car   Dry   Weight  (kg)

Specifications

Source

Coils  Total  Active

Wire

OD  (mm)

Free   Length (mm)

Test Load (kg)

Load   Length (mm)

Flex   Rating

Spring   Rate   (lb/inch2)

4 Front Springs 

Note: in several instances parts manual #776 provides two alternative color dots schemes for one part number. This was possibly due to using two suppliers. 

1365.45.113	2W+1G  2R+1G	750	Berlina up to 1488.1000	915				389	485-515	267	95		637
1365.45.232	1W+Y  1R+1Y	750	Berlina, t.i. (Footnote 1)	915  920				396	485-515	274	95		637
101.00.21.505.00	1LtB+1W 1LtB+1R	101-1300  ?101-1600	Berlina, t.i. (Footnote 2)	915  920				405	521-553	274	95		854
1365.45.078	1W+1R	750	Sprint up to 1493.02800	880				410	505-540	267	106		637
1365.45.172  (repeated below)	1W+2G  1R+2G	750  101-1300  101-1600	Sprint after 1493.02801	905				394	490-520	267	97.8		637  854  850
1365.45.152	5W	750	Sprint Veloce (on   request)	895				384	446.2-  473.8	267	88.3		637
1365.45.153	4W	750	Sprint Veloce	895				371	446.2-  473.8	267	99		637
1365.45.161	2W+2R  2W+1R	750 Footnote 3101	Sprint Veloce w/Sprint  body		T: 8 3/4  A: 6 3/4	13.6	115	377	485-515	267	86	269.13	854  +example
		101-1300	SS	860
			SZ (Footnote 4)	770
????	1W+1G+  1R	101-1600	SS	950				377	500-515	267			1159

  

1(750) Berlina 1488.1001 – 1488.24930, t.i. up to 1468.17750 

2(101) Berlina, t.i. after numbers in footnote 1 

3 Based on example found in 750-101 Transition Sprint Veloce 1493-E-06920, with 750 front suspension wishbones and still having visible “2 white + 1 red dots”. 4 The parts manual lists the SZ spring as 136545.153, but the Workshop Manual specifications match 1365.45.161.

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750-101 Suspension Springs Front Springs Page 6 

Part#

Dots

Application

Car   Dry   Weight  (kg)

Specifications

Source

Coils  Total  Active

Wire

OD  (mm)

Free   Length (mm)

Test Load (kg)

Load   Length (mm)

Flex   Rating

Spring   Rate   (lb/inch2)

1365.45.112	3W  3R	750	Spider	860				410	451-479	267	118.7		637
		101-1300	Spider					394	490-520	267			854
1365.45.172  (duplicate from  above)	1W+2G  1R+2G	101-1600	Spider,  Spider Veloce	885	T: 9	14		394	490-520	267	97.8		850
1365.45.177	2G	750  101-1300	Spider Veloce	865							89

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750-101 Suspension Springs Front Aluminum Spacers Page 7 

	Placement				Specifications
Part#	Top	Bottom	Corresponding   Spring	Application	A	B	C	Thickness	Source

“X” indicates that it was used on both right and left side of car. 

5 Front Aluminum Spacers

1365.45.237	X		1365.45.113 /red dot	750	Berlina 1488.07501 – 1488.1000					776
1365.45.238	X		1365.45.113 / white dot
1365.45.257	X			750  101-1300	∙ Berlina  ∙ t.i.				15 mm	776
1365.45.258	X			750  101-1300	∙ Berlina  ∙ t.i.  ∙ Spider Veloce  ∙ SS				12 mm	776
				101-1600	∙ Sprint  ∙ Spider (including Veloce) ∙ SS					1016

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750-101 Suspension Springs Front Aluminum Spacers Page 8 

	Placement				Specifications
Part#	Top	Bottom	Corresponding   Spring	Application	A	B	C	Thickness	Source

1365.45.259	X			750  101-1300	∙ Berlina  ∙ t.i.  ∙ Spider  ∙ SZ			115   mm  Footnot e 5	8 mm	776
				101-1600	Sprint					1016
1365.45.260	X			750  101-1300	∙ Berlina  ∙ t.i.  ∙ Sprint  ∙ Sprint Veloce				5 mm	776

  

5115 mm based on all 101-1600 were 115 mm springs.

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750-101 Suspension Springs Front Rubber Pad Page 9 

	Placement				Specifications
Part#	Top	Bottom	Corresponding  Spring	Application	A	B	C	D	Thickness	Source

6 Front Rubber (& Steel) Pad 

Manual 776 labels them “Bearing” 

Manual 1016 labels the upper as “Sprint seat upper” and the lower as “Bearing lower” 

1365.45.435						Footnote 6
	X	X	1365.45.113		Berlina up to 1488.10000	73 mm	85 mm	N/A  (no lip)	114mm	6mm	776
	X		1365.45.232		Berlina beginning with 1488.10001						776
	X	?	All	750	All except Berlina						776
	X		All	101-  130  0	All except Berlina						776
	X		All	101-  160  0	All						1016

 6 Based on example found in 750-101 Transition Sprint Veloce 1493-E-06920, with 750 front suspension wishbones. 

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750-101 Suspension Springs Front Rubber Pad Page 10 

	Placement				Specifications
Part#	Top	Bottom	Corresponding  Spring	Application	A	B	C	D	Thickness	Source

1365.45.465						Footnote 7
		X	1365.45.232		Berlina beginning with 1488.10001	74 mm	85 mm	116 mm	121 mm	7 mm	776
		X	All	750	All except Berlina						776
		X	All	101-  130  0	All except Berlina						776
		X	All	101-  160  0	All						1016

  

7Same as above

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750-101 Suspension Springs Rear Springs Page 11 

Part#

Dots

Application

Car   Dry   Weight  (kg)

Specifications

Source

Coils  Total  Active

Wire

OD  (mm)

Free   Length (mm)

Test Load (kg)

Load   Length (mm)

Flex   Rating

Spring   Rate   (lb/inch2)

Manual #637 (9/1958) “Giulietta Cars Shop Manual” had more rear spring alternatives for Spiders and Sprints but it was too confusing to include here. 7 Rear Springs 

1365.48.035	2W	750	Berlina up to 1488.1000	915				471	237.65-  252.35	260	86.0		637
1365.48.090	1Y	750	Berlina, t.i. (Footnote 8)	915  920				463	237.65-  252.35	250	87.2		637
101.00.25.510.00	2LtB	101	Berlina, t.i. (Footnote 9)	915  920				479	255.1-  270.9	250	87.2		854
1365.48.113			Ambulance								69.3
1365.48.141			t.i. Guardia di Finanza								87.2
101.11.25.510.00			t.i. Autostrada del Sole								69.9
101.22.25.510.01		101	Station Wagon								58.3
1365.48.013	1W	Early 750	Sprint up to 1493.2800	880			105	461	203.7-  216.3	240	105.4		637
1365.48.092	1G	Mid 750	Sprint 1493.02801-  1493.04500				??	425	189.15-  200.85	240	94.6		637
1365.48.096	5Y	Late 750  101-1300  101-1600	Sprint from 1493.04501	905			115	414	189.15-  200.85	230	94.1		637  854
101.12.25.510.00	5B	101-1600	Sprint	905			115	414	189.15-  200.85	230	94.1		850
1365.48.081	4W	?	Sprint Veloce	895	T: 10 3/4 A: 8 3/4	9.5	105	383	157.14-  176.13	240	94.6	59.17	637  Footnote10
1365.48.082	5W	?	Sprint Veloce	895							83.8
1365.48.103	2Y	?	Sprint Veloce					405	190.1-  201.9	240	83.3		854

  

8(750) Berlina 1488.10001 – 1488.24930, t.i. up to 1468.17750 

9(101) Berlina 1488.3001, t.i. from 1468.2001 

10 Coil count, wire diameter, and spring diameter based on “New Old Stock” sample.

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750-101 Suspension Springs Rear Springs Page 12 

Part#

Dots

Application

Car   Dry   Weight  (kg)

Specifications

Source

Coils  Total  Active

Wire

OD  (mm)

Free   Length (mm)

Test Load (kg)

Load   Length (mm)

Flex   Rating

Spring   Rate   (lb/inch2)

1365.48.111	5G	750   101	Sprint Veloce		T: 9 1/2  A: 7 1/2	10.4	115				84.4	75.46	Footnote11
		101-1600	SS	950				405	196-202	240			854
101.20.25.510.00	not listed	101-1300	SS, SZ	860,   770				393	165.87-  176.13	230	95.2		854
		101-1600	SS w/ light body ??????	???
1365.48.024	3W	750	Spider (Footnote 12)	860			105	436	156.7-  166.3	240	121.3		637
1365.48.104	4G						105				105.4
1365.48.097	4Y	?	Spider (Footnote 13)				115	453	157.14-  168.86	240	119.5
1365.48.106	3G						115				103.6
101.03.25.510.00	1LtB	101-1300	Spider from 1495.08001	860			115	410	185.25-  196.75	230	94.2		854
		101-1600		885
1365.48.093	2G	? 750	Spider Veloce	865				387	150.35-  159.65	240	94.6		637  850
1365.48.099	3Y	? 101-/1300	Spider Veloce					410	185.25-  196.75	230	94.2		854
(Footnote 14)	1LtB w/   cross	101-1600	Spider Veloce	885				410	185.25-  196.75	230

 11 Based on example found in 750-101 Transition Sprint Veloce 1493-E-06920, with 750 front suspension wishbones and still having two visible green dots. 12 European Spider 1495.03251 – 1495.08000, 104.5 mm (rounded to 105) OD; can replace 1365.48.024 with 1365.48.104 must substitute stabilizer bar 1365.45.230 and rubber  pad 1365.45.466 

13 European Spider 115 mm OD – can replace 1365.48.097 with 1365.48.106 must substitute stabilizer bar 1365.45.230 and its rubber pad 1365.45.466 14 The parts manual does not list a number for Veloce, which should mean it is the same as the Normale 101.03.25.510.00. The Technical Specifications manual provides the same  specifications for both, except for the paint color / symbol on the spring.

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750-101 Suspension Springs Rear Shock Cover Page 13 

	Placement				Specifications
Part#	Top	Bottom	Corresponding  Spring	Application	A	B	C	D	Thickness	Source

“X” indicates that it was used on both right and left side of car. 

“Left side only” in manual 776 means “Passenger side”. 

8 Shock Cover / Spacer 

Manual 776 calls it “Rubber Pad Upper”. 

1365.48.402	X		All 105 mm   springs	750	All 105 mm springs	Footnote 15					776
						76 mm	82 mm	115 m	124 mm	8 mm
1365.48.431	X		All 115 mm   springs	750  101-1300  101-1600	All 115 mm springs	84 mm	91 mm	136 mm	145 mm	7.5 mm  Footnote 16	776
101.22.25.515.02	X			101-1300	Station wagon	??	??	??	??	??	776

 15 Based on NOS example of 1365.48.402 

16 Based on example found in 750-101 Transition Sprint Veloce 1493-E-06920

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750-101 Suspension Springs Rear Aluminum Spacer Page 14 

	Placement				Specifications
Part#	Top	Bottom	Corresponding  Spring	Application	Version	A	B	C	Thickness	Source

10 Rear Aluminum Spacers

There were two generations of rear aluminum spacers without a change to the part numbers; flat and grooved (see picture below).  Theory of why this running change occurred:   ∙ Originally spacers were only used on top of the rear springs, but eventually there was a need for spacers at the bottom of the spring. See 101-1300 SZ in chart. ∙ Since there was already a rubber pad at the bottom; one had to accommodate the other. That pad would not slip around the outside of the aluminum spacer.  ∙ Alfa changed the inside diameter of the pad and added the groove to the aluminum spacer to allow the pad to sit inside. Part numbers were not changed in the  manuals.  ∙ The grooved spacer can be substitued for the non-grooved original of the same thickness, but the non-grooved version cannot be used at the bottom of a spring.
Not used				750  101-1300	Berlina  t.i.							776
1365.32.084	X			750	Spider up to 1495.01850							776
1365.32.115	Left   side   only			750	Sprint Veloce up to   1493.04448							776
1365.48.094	X		OD 95 mm   (probably   misprint of 105)	750	Spider Veloce							776

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750-101 Suspension Springs Rear Aluminum Spacer Page 15 

	Placement				Specifications
Part#	Top	Bottom	Corresponding  Spring	Application	Version	A	B	C	Thickness	Source

1365.48.095	X		OD 115 mm	?	Spider Veloce						776
1365.48.102	Left   side   only			750	Sprint Veloce 1493.04449  to 1493.12000	Footnote 17					776
						#1	93 mm	116 mm	126 mm	9.7 mm
	X			750	Sprint  Spider						776
	X			101-1300	Sprint  Spider	Footnote 18					776
						#2	126 mm	118 mm	93 mm	10.3 mm
	X			101-1300	Spider Veloce from   14955.08001						776
	Footnote 19		1365.45.161	101-1300	SS  SZ	Probably #2					776
	X		All 101-1600	101-1600	Sprint  Spider						1016
	X	Left side  only	All 101-1600	101-1600	SS	Probably #2					1016

 17 Based on example found in 750-101 Transition Sprint Veloce 1493-E-06920 

18Based on example probably from 101 Sprint Normale 1493.20716. For the thickness, the groove was ignored. 

19 For the SS and SZ the 776 manual lists 2 on left and 1 on right. Two on the left, implies top and bottom of spring. Refer to opening statement in this section about the two  versions of the aluminum spacer.

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750-101 Suspension Springs Rear Rubber Pad Page 16 

	Placement				Specifications
Part#	Top	Bottom	Corresponding  Spring	Application	A	B	C	D	Thickness	Source

11 Rear Rubber (& Steel) Pad 

Manual 776 labels them “Bearing”, while manual 1016 labels them “Rubber Pad”. 

1365.48.401		X	All OD 105 mm	750  101-1300	All						776
The following pad does not fit groove in Spacer “version #2”
1365.48.424		X	All OD 115 mm	750  101-1300	All	80 mm	94 mm	116 mm	120 mm	6 mm	776  Footnote20
			All	101-1600	∙ Sprint  ∙ Spider  ∙ SS						1016
The following pad will fit into groove in Spacer “version #2”. —– It will not fit inside the shock cover/spacer
??????	?????	??????	??????	??????	Unknown  ∙ All from release of new pad? ∙ Any time spacer is required at  bottom of spring?	80 mm	90 mm	116 mm	120 mm	5.5 mm	Footnote21

 20 Based on example found in 750-101 Transition Sprint Veloce 1493-E-06920 

21 Based example, probably from 101 Sprint Normale 1493.201716 …. which indicates a probably running change without number change being recorded in parts manual

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