Rearching dimensions - rear springs - 59 Lark wagon

[Clover Green]

Rear springs are badly sagged even with a helper. Found several threads near this topic but none seem to answer the question. I'm looking for the leaf spring specs for the rearching shop:

1 spring off the car - centre of eye to centre of eye
2. Height from top to bottom - front & rear eye sitting on the floor.
Andrew

[StudeRich]

The Studebaker Shop Manuals I have read do not show these specs because the Factory recommends REPLACEMENT, not rearcing.

Everyone I have ever asked how their re-arc job worked out, has said it simply did not last.

Detroit Eaton Spring has the specs for every Spring Studebaker ever used because THEY made them, and STILL do!

[Alan]

Andrew, You will find that the springs are not symmetrical. The rear end locating pin is back from the center of the front eye 20 1/4". True arch is measured from that pin. You run a line through the front and rear eyes and down to the spring will be about 4 to 4 1/2".