Multi leaf springs.

[starcruser]

I want to change over to multi leaf springs on a 67. I will put in a 69 12 bolt. I know I will most likely need longer u bolts.  What else will I need for this conversion and where would you purchase from?

[Stingr69]

Have you considered the shock absorber differences?  69 uses staggered shocks so you might want to use the non-staggered 67 bottom plates?

[69z28302]

For springs I would look here.  http://www.camaros.com.

Nice discussion about leaf springs on this site. http://www.camaros.org/forum/index.php?topic=9626.0
Hope this helps

Mike

[KurtS]

Have to ask, why?

[starcruser]

Kurt the reason is the 67 has a broken saddle on the right side of rear end. In my extra parts over the years I kept a 69 front subframe and 12 bolt posi. My dad has a 67 RS all original and they seem too soft for me.  I'm thinking with good power they would be best.

[KurtS]

Mono's can be very stiff - depends on the specs. Monoleaf is a better spring design. Multileaf is a compromise to try fix a problem.
That said, with the axle design issues (axle positioning/wrapup), a multileaf works better with big power unless you have a radius rod or similar.

[starcruser]

Kurt the car was built first day of production. It did not have radius rod. Since it's been changed to 4 speed and rear purch is broken I was thinking multi leafs might work better. I've read about monos that have good reviews.