lug nut numbers

[mststeve]

Hey guys. First time user. I have just acquired a 61 1/2 ton custom cab with a 305D. I know most half tons use 5 lug nuts, and 3/4 and up use 8, but mine has 6 lug nuts. Was that another difference between Chevy and GMC, or is there such a thing as a "heavy half" back in '61? If so, what exactly sets the heavy half off from the regular half ton?

[hugger6933]

Welcome to you sir from eastern Arkansas. You will find a wealth of knowledge and entertainment on here. The General[GM used 6 lugs on there trucks as far back as almost ever I think. They used the 6 lug setup until 1971 in the half ton truck when they went to the popular 5 lug araingment. They kept the 5 lugs until the last body style [the one starting with 1999model year] Now the exception is the k trucks or 4x4 as most know them , they had 6 lugs. The nexet to last body style[88-98] had 6 lugs in the light duty 3/4 ton trucks [7200GVW] but for the most part the 5 lugs were used on the 1/2 tons from 71 until 98[I guess I should have said that first.] Not all posters on here will be as long winded or cunfusing as I so I hope I don't run you off befroe you get a chace to check out everything. Good luck with your truck

[mststeve]

Thank you for your response! My Dad had a 60 Chevy, but I was very young and thought it was 5 lugs. Someone mentioned mine had 6 like it was odd, so I thought this would be the place to ask!

[hugger6933]

The "heavy half" was a promo type thing back in the late 70's with a little heavier spring pack basicly like a light duty 3/4 ton. I remember seeing the late 70's all of the trucks with bedside banners saying heavy half.

[MusicMan70]

Welcome mststeve and congrats on your new truck! How about some pics for us V-6 Fans...

[mststeve]

Soon as I figure out how! I got one on my profile though.

[jocko]

Hey, nice truck!!

To add pics to a thread, click "Post Reply" or if you're typing in the little "Post Quick Reply" Box at the bottom of the page, click "Go Advanced" - then once on that entry page, click on the paper clip symbol and a dialog box will pop up for you to add 5 pics at a time (per post).

Hope that helps.

[markeb01]

Welcome to the forum. The main differences between Chevy and GMC in 1961 were the hood, tailgate, dashboard, emblems, and engine selection. Also the rear axle in the GMC ½ ton was normally a Dana 44. Deluxe exterior window and side trim was also different than Chevy. Looking forward to the photos.