68 z28 leap day date code and question.

[Kaanderson]

Hi, I am restoring my 68 Z28.  I pulled the rear end out of the car today. It has a leap day 2/29 date code and a BV 4.10 posi rear end.The original brake drums still on it and some old hijacker Gabriel air shocks. I noticed someone welded the spring perch on the driver side only to the bottom plate that holds the leaf spring in place, the dowel is on the leaf spring  and is centered in the hole. The u bolts are still intact and everything looks as though it was solid and factory assembly. I will have to cut the weld to remove the plate to remove the leaf spring. The weld is on the parting line of the upper and lower spring perch where they meet to hold the spring in place. Any one ever seen this before? What is your thought on why? Thank you

[bcmiller]

Can you post a pic? It's not factory, someone might have thought they needed extra strength to hold things together.

Just on one side?

[mls68z28]

My '68 Z brake booster was made on 02/29/68,Mitchell