Rear leaf's to coil's, and 6 lug to 5 lug - what year was the changeover?

[Russ.W.]

Few question for you good folks, if you don't mind.

Specific to 67-72 C10 2wd shortbeds, I'm trying to find out when rear coil suspension become an option over leaf's, and in which year became standard?

Same question for 6 lug to 5 lug changeover.

I'm considering ordering a complete rear-end housing from Moser.

Their website lists two options for our trucks:

- 1963-69 Chevy C10 Pick Up Truck
- 1970-72 Chevy C10 Pick Up Truck

They offer no option of suspension type (leaf or coil), nor lug count (5 or 6).

Does this mean rear coils weren't introduced until 1970?

[too much stuff]

Chevy had coils as standard, and GMC had leafs as standard. Either truck could be ordered either way. 71 went to 5 lug in 2wd.

[Russ.W.]

I appreciate that, thanks.

[jeh]

There is a difference in the width of rear axle depending on what year also

[Russ.W.]

Originally Posted by jeh

There is a difference in the width of rear axle depending on what year also

Can you elaborate?

[jeh]

Originally Posted by Russ.W.

Can you elaborate?

Well I hope someone with more knowledge will chime in, but I think a 67-70 had a narrower rear end and possibly a '70 could have been either and 71-72 were wider rear ends. I'm not for sure on this so someone feel free to correct me.

[too much stuff]

70 rear ends could be either width. I think it was a mid year change. It would still be 6 lug however. I think they were about 2" wider.