Hey since my door tag vin decal is missing I read that my RPO code C5H list my truck @ 6900 lbs GVWR.Normally trucks I see my year and style have variable GVWR with an ext cab long box 2006 silverado. Specs commonly show 6400-6700.Axle weights show on the other trucks I been looking at 3925 front axl rate and 3750 rear axl weight.Would I assume different #'s for my axles with this new found info on my RPO code C5H? It seems it gives it 200 lbs or so more GVWR .I cant for the life of me find any info on this.Can it be part of the Z85 trailer suspension pakage I have?Also Im going to get new shocks for the truck and was looking at the bilsteins. The Z85 package shows the truck came with 36mm mono tubes. Are the bilsteins compatable?Im doing this as im not sure why im getting porpoising while towing this light trailer.I use WD but the TW on the trailer is only 500 lbs or so. This worked good for my s10 but the silverado rocks like a see saw if I hit certain bumps. Can it bee the 157" wheel base?Can it be that no WD is needed and the 1000 lb WD bars are acting as a spring?

No replies, but as far as porpoising I believe the front shocks are shot... I rock the front and it keeps moving up and down a few times... Like a lot..I ordered bilsteins. I have them stock on the s 10 with 165 K miles and they are still good.. I liked the ride my s10 has so I want that on the silvy too.. I like firm truck like feel...After I install Ill post back the outcome...Otherwise im 270 bucks poorer...I know others like Cadillac ride but there are so many shocks to choose from now.. Not like the old days when there were just a few..Bils, monroe, kyb, rancho, delcos, edlebrock,gabriel, motorcraft , konietc...

The wifes '06 1500 crew cab chevy Z71 5.3 3.73 gears 5' 10" bed had a 7000 GVWR with 3950 fawr and 4000 rawr. Its gone now.....she replaced it with a same truck in a 2016 model. Odd thing is the '16 has a higher 7200 gvwr but the rear axle has 50 lbs less capacity I've carried 18 bags (80 lb bags) of concrete redi mix over the rear axles on the '06 truck building fences in muddy areas. The truck sagged less than the same load on my '03 2500 Dodge/Cummins quad cab short bed which did drop more in the butz. Her old '06 porpoised with my 10k car hauler (9660 lbs on the axles/1020 lbs on the truck) with no WD hitch ...till I installed new Bilsteins all around. No more porpoise.

Some of these comments are funny. To the op, yes 500lb tongue weight shouldn't require any real shoring up from a WD hitch on your truck, but the pic in your sig says different. It's sagging, but maybe you have a bunch of weight in the bed. As far as a new half ton sagging less than a 3rd gen 2500, somethin ain't right there either unless maybe you loaded the concrete on the tailgate of the dodge. 1500lbs barely takes the harsh ride out of factory 3rd gen leaf springs. That's the nice part about those trucks if you haul. My 07, same spring/rate as the 03 doesn't quite bottom out with my AF camper in the back with no air. It's actually driveable with 4000lbs centered over the axle. Not friendly, just driveable. But they were your trucks, so go Silverado!

As far as a new half ton sagging less than a 3rd gen 2500, somethin ain't right there either unless maybe you loaded the concrete on the tailgate of the dodge. 1500lbs barely takes the harsh ride out of factory 3rd gen leaf springs. . I don't know what your problem is with my trucks weights or sagging issues but Re read what I said. The half ton was the '06. Now here's some more funny comments.... Let me spell it out for you....my 2500 Dodge/Cummins sags more than the half ton period before the progressive over load comes to play with 18 bags of redi mix. As more weight is added above those 18 bags to the my 2500 2wd Dodge it doesn't sag much past that weight. Of course that weight (3200-3400 lbs) is well above what the '06 half ton can carry. Bags were placed on a pallet and pallet was placed over each trucks axles. Yeah my 2500 carries weight. I custom haul stock with a 16k GN tri axle stock trailer. It also pulls a 14K GN flatdeck with construction and agriculture equipment. Sorry for the hijack OP.

The wifes '06 1500 crew cab chevy Z71 5.3 3.73 gears 5' 10" bed had a 7000 GVWR with 3950 fawr and 4000 rawr.Ya thats what Im intersted in. The C5H rpo code and how that changes the axle ratings if it does at all.I assume if I get the truck weighed and take ito account my payload sticker of 1485 lbs ( which is still there) I can figure it out...I just dont have that darn vin tag with all the proper info..

C5H RPO code 6900 lb GVWR and WD issues | Good Sam Community

23 Replies

Grit_dog
Navigator III
Sep 21, 2016
Some of these comments are funny.
To the op, yes 500lb tongue weight shouldn't require any real shoring up from a WD hitch on your truck, but the pic in your sig says different. It's sagging, but maybe you have a bunch of weight in the bed.
As far as a new half ton sagging less than a 3rd gen 2500, somethin ain't right there either unless maybe you loaded the concrete on the tailgate of the dodge. 1500lbs barely takes the harsh ride out of factory 3rd gen leaf springs.
That's the nice part about those trucks if you haul. My 07, same spring/rate as the 03 doesn't quite bottom out with my AF camper in the back with no air. It's actually driveable with 4000lbs centered over the axle. Not friendly, just driveable.
But they were your trucks, so go Silverado!
JIMNLIN
Explorer III
Sep 21, 2016
The wifes '06 1500 crew cab chevy Z71 5.3 3.73 gears 5' 10" bed had a 7000 GVWR with 3950 fawr and 4000 rawr. Its gone now.....she replaced it with a same truck in a 2016 model.
Odd thing is the '16 has a higher 7200 gvwr but the rear axle has 50 lbs less capacity

I've carried 18 bags (80 lb bags) of concrete redi mix over the rear axles on the '06 truck building fences in muddy areas. The truck sagged less than the same load on my '03 2500 Dodge/Cummins quad cab short bed which did drop more in the butz.

Her old '06 porpoised with my 10k car hauler (9660 lbs on the axles/1020 lbs on the truck) with no WD hitch ...till I installed new Bilsteins all around. No more porpoise.
lawrosa
Explorer
Sep 20, 2016
No replies, but as far as porpoising I believe the front shocks are shot... I rock the front and it keeps moving up and down a few times... Like a lot..

I ordered bilsteins. I have them stock on the s 10 with 165 K miles and they are still good.. I liked the ride my s10 has so I want that on the silvy too..

I like firm truck like feel...

After I install Ill post back the outcome...

Otherwise im 270 bucks poorer...

I know others like Cadillac ride but there are so many shocks to choose from now.. Not like the old days when there were just a few..

Bils, monroe, kyb, rancho, delcos, edlebrock,gabriel, motorcraft , konietc...

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C5H RPO code 6900 lb GVWR and WD issues

23 Replies

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