HD or "normal" 3/4 rear leaf springs

[r67northern]

Hi Everyone,

I'm going to fix the driver-side lean on my R20 and get the load height back up. I've got a choice of either the normal springs or the Hd springs:

http://www.sdtrucksprings.com/index...Y2tCRbmyziqV8QOY84tCpwiOurBzNNHxoCeuUQAvD_BwE

Is there an option code that I should be aware of that might say what the R20 has on it right now? It's 4:10 rear gear option, so it may have HD on it if they were ever a factory option.

Thanks for any input.

 

[twinturbo427]

Do you have the option sticker in the glovebox?

 

[twinturbo427]

The RPO code should be G50 HD or G51 extra capacity
Info From a website so verify elsewhere.

 

[yevgenievich]

See how many leafs existing leaf pack has. There was an extra leaf on hd

 

[r67northern]

Okay, thanks for the input. I went diggin, found option

YD6 : REAR SPRING, BASE EQUIPMENT

So if I go HD, then it won't be stock... but according to the websites, the HD springs have the same leaf count as the normal ones. I'll do a little more double checking, might go HD anyway, it's going to be asked to tow.

 

[yevgenievich]

I remember seeing two options for my 3/4 burb, and it was actually different leaf count. But it might have been something different.

edit:
For 91 3/4 suburban it shows 5 and 7 leaf packs, but the 5 one is probably for a 1/2 ton

 

[r67northern]

I remember seeing two options for my 3/4 burb, and it was actually different leaf count. But it might have been something different.

edit:
For 91 3/4 suburban it shows 5 and 7 leaf packs, but the 5 one is probably for a 1/2 ton

Right - I'm seeing the reduced leaf count option too - I'm thinking that's for a 1/2 ton as well.

 

[Craig 85]

I noticed the HD version has a 3500 LBS payload vs 2600 for the non HD. Look at page 2 of the document attached. It says each spring has a 3000 LBS capacity. I would assume you would want the HD since you plan to tow.

https://www.gmheritagecenter.com/do...ion-kits/Suburban/1988-Chevrolet-Suburban.pdf

 

[r67northern]

Thanks for the link, great resource. I had run across it before, totally slipped my mind it was there. I'll get the HD springs on it and put her to work.

 

[Honky Kong jr]

Okay, it's going to be asked to tow.

You don't ask a Chevy it just does it.........

 

[r67northern]

You don't ask a Chevy it just does it.........

Good point. I'll let it go do its job.