1969 Chevy II RPO L78 Spring Calculator

Only works in Internet Explorer for now. Select the items that are installed by checking the box next to the appropriate equipment then click the Calculate button. Note not all RPO Equipment was available with each engine and model. See Dealer Price Schedule for model application.    
RPO Equipment Installed
L78 V-8 Eng. 396 Cu. In. - 375 H.P.
M20 4-Speed Trans.
M35 Powerglide Trans. (V8)
M38 3-Speed Auto. Trans.
M40 3-Speed Auto. Trans.
MB1 2 Speed Trans.
MC1 HD 3-Speed Trans.
A51 Astro Bucket Seats
A81 Head Rest (Spec. Contour)
B37 Floor Mats (Front and Rear)
F40 Heavy Duty Suspension
J50 Power Brakes
J52 Disc Brakes
N10 Dual Exhaust (L78)
N40 Power Steering
T60 HD Battery (RPO Eng.)
U57 Tape Player
U63 Radio (Pushbutton)
U69 Radio (AM-FM)
U79 Stereo
V01 HD Radiator (V-8)
ZJ1 Custom Interior
ZJ2 Custom Exterior

Front Spring Wt:

RPO Spring Code:

HD Spring Code:

 Rear Spring Wt:

RPO Spring Code:

HD Spring Code:
Spring Part number Identification Chart