<VV> Spring comparison

[Crawford Rose]

Bill Strickland mentioned some interest in comparison data.

Sources: "1960 Chevrolet Corvair" GM Publication Rev. 2/1960
                "1964 Corvair" GM Publication 10/1963

1960 FRONT
6257482
Application   527, 727, 569, 769
number of coils (active/total)   5.85/7.45
wire diam.     .460
outside diam..     4.373
pitch diam.    3.913
Height free    11.00
working height       6.17 @ 815
Deflection rate
@ spring    168 lb/in
@ wheel    86 lb/in

1960 REAR
3780791 (note this number is later production - 2/1960 - early production part number was 6257159)
Application   527, 727, 569, 769
number of coils (active/total)   6.50/7.95
wire diam.     0.610
outside diam..     4.773
pitch diam.    4.113
Height free    11.02
working height        4.75@ 1575
Height under curb weight 8.03
Deflection rate
@ spring    425 lb/in
@ wheel    117 lb/in

1964 FRONT
3848975
Application   527, 627, 769, 927, 969
cutoff length    90.351
number of coils (active/total)   5.85/7.184
wire diam.     .470
outside diam..     4.393
pitch diam.    3.923
Height free    10.651
working        6.42 @ 770
Deflection rate between 8.95 and 11.95
@ spring    182 lb/in
@ wheel    106.5 lb/in

3826077
same as 3848975 except
Application    667, 967
cutoff length    92.18
number of coils (active/total)   5.85/7.85
Height free    11.12
working        6.42 @ 855

1964 REAR
3848969
left hand side application   527, 769, 627, 927, 969
cutoff length    111.687
number of coils (active/total)   7.50/8.834
wire diam.     .506
outside diam..     4.393
pitch diam.    3.959
Height free    13.369
    working        7.45@ 1095
Deflection rate between 5.95 and 8.95
@ spring    185 lb/in
@ wheel   not given

3848967
right hand side application   527, 769, 627, 927, 969
same as 3848969 except as follows
cutoff length    98.804
number of coils (active/total)   6.50/7.834
wire diam.     0.486
outside diam..     4.425
pitch diam.    3.939
Height free        12.585
    working        7.45 @ 950

3848970
Left hand side application for 667, 967
same as 3848969 except
Height free    13.774
    working        7.45 @ 1170

3848968
Right hand side for 667, 967
same as 3848969 except
 cutoff length    98.804
number of coils (active/total)   6.50/7.834
wire diam.     .486
outside diam..     4.425
pitch diam.    3.939
Height free   13.018
    working        7.45 @ 1030

Leaf spring
length     45.50
Width     2.68
Design load    915 @ 0.81
deflection rate    290 lb/in