Blazer/Jimmy vehicle GVW and GVWR

[hemi43]

I've searched for information on this in the past but always came empty handed.
The aluminum tag on our trucks has the GVW but no GVWR. The reason for this is that technically the K5 is not a truck, but an SUV which falls in a different set of rules. The listed GVW of my 1970 Blazer is 5000 LBS, and I believe this went to 5500LBS in 1971-72.
I've had my Blazer on a scale, and with no driver and Softtop it came in at 4820LBS which I thought was high considering these are fairly small trucks. What is confusing is the factory brochure claims these weigh around 3600LBS.
What I'm trying to find out is what the GVWR is? Here in Canada, we have become a police state and I just want to make sure that I'm within the legal limit when driving down the road.
Has anyone else actually weighed their trucks? I would be interested in what number you all got, as well as what equipment your truck has.