Spring ?
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Joined: Feb 2008
Posts: 1,004
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Car: 90 IROC
Engine: 5.7 TPI
Transmission: 4L60
Axle/Gears: 3.23
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From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Spring ?
It means that the computer selected the springs to install on the car based on the combined weight of all the installed options.
Supreme Member
Joined: Feb 2008
Posts: 1,004
Likes: 1
Car: 90 IROC
Engine: 5.7 TPI
Transmission: 4L60
Axle/Gears: 3.23
Re: Spring ?
It's interesting that there is an RPO for each corner option, so four RPO codes to define a car. I assume that they are just selecting a spring that has a slightly different installed height and not a different rate. I wonder if they match each side or if, say, the two fronts could be different.
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Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: Spring ?
Even though they're matched, LH/RH springs are different parts so it makes sense that they have their own codes.
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