The 3800 springs are wider and longer than 3100 & 3600 springs...
http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm0202.htm
http://chevy.oldcarmanualproject.com/shop/1948_51truck/51ctsm0316.htm
I should have mentioned St. Louis Spring, but I forgot. I got a good quote from them for new front springs for my 3600 years ago. And they have a good rep.


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