Help

bdillon94 · May 24, 2009

Ok, so here's the back story. I am back to Chevys after a four year run with Dodge. There wasn't anything wrong witht the Ram, just wasn't big enough. So I sold it to a buddy and bought an 03 Silverado 1500HD LT 4by. The problem is that I don't really know anything about it. I have researched hi and lo but I can't find a lot of info on it, like what kind of tranny, xfer, diffs, and so on. This is going to be my new toy and I will be doing the work myself, so can anyone give me a starting point. Also I have 8 lugs and a buddy of mine with the same year 1500HD only has 6, what's up with that. I would love any info from the service guys and shade tree'ers. Oh yeah as a side note, I'm in Germany so there aren't any shops to take it to, lol. Please help me.

Thanks,

pwall · May 24, 2009

Welceme!

All the options will be listed in the glove box as RPO codes. It will tell you exactly what is in your truck.

Check out: http://www.wiu.edu/users/muwtj1/gq1-j55.txt

It'll list the codes for the differential (and other stuff).

For example:

GU2 = 2.73 Ratio

GU4 = 3.08 Ratio

GU5 = 3.23 Ratio

GU6 = 3.42 Ratio

GT4 = 3.73 Ratio

GT5 = 4.10 Ratio

builderpaul · May 25, 2009

Ok, so here's the back story. I am back to Chevys after a four year run with Dodge. There wasn't anything wrong witht the Ram, just wasn't big enough. So I sold it to a buddy and bought an 03 Silverado 1500HD LT 4by. The problem is that I don't really know anything about it. I have researched hi and lo but I can't find a lot of info on it, like what kind of tranny, xfer, diffs, and so on. This is going to be my new toy and I will be doing the work myself, so can anyone give me a starting point. Also I have 8 lugs and a buddy of mine with the same year 1500HD only has 6, what's up with that. I would love any info from the service guys and shade tree'ers. Oh yeah as a side note, I'm in Germany so there aren't any shops to take it to, lol. Please help me.

Thanks,

The 1500HD is the same as the 2500LD. 4l80 transmission, 8 lug wheels with 10 ply tires, etc. Your buddy must be mistaken never seen a 1500HD with 6 lug wheels. GVW sticker (drivers door jamb) will say 8600lbs for the 1500HD.

pennzoil29 · May 25, 2009

Ok, so here's the back story. I am back to Chevys after a four year run with Dodge. There wasn't anything wrong witht the Ram, just wasn't big enough. So I sold it to a buddy and bought an 03 Silverado 1500HD LT 4by. The problem is that I don't really know anything about it. I have researched hi and lo but I can't find a lot of info on it, like what kind of tranny, xfer, diffs, and so on. This is going to be my new toy and I will be doing the work myself, so can anyone give me a starting point. Also I have 8 lugs and a buddy of mine with the same year 1500HD only has 6, what's up with that. I would love any info from the service guys and shade tree'ers. Oh yeah as a side note, I'm in Germany so there aren't any shops to take it to, lol. Please help me.

Thanks,

The 1500HD is the same as the 2500LD. 4l80 transmission, 8 lug wheels with 10 ply tires, etc. Your buddy must be mistaken never seen a 1500HD with 6 lug wheels. GVW sticker (drivers door jamb) will say 8600lbs for the 1500HD.