1967 12-bolt

[ZLP955]

Have come across a mono-leaf 12-bolt with the following details:
Cast date L66 (December 6, 1966)
Axle code QL1229G (3.31 ratio, non-posi, December 29 assembly)
It has the radius rod bracket on the passenger side.
Now I should point out, am not familiar with 67's, but a bit of research indicates this would've been fitted to either an SS (L35, L48 or L78) or a Z/28.
Without a corresponding car, obviously no way to say for sure which of the above it actually was from, but based on the original ratio (3.31 open), could any of the above RPOs be ruled out, or deemed less likely than others?

[Kelley W King]

I think on the L78 and Z it would have been special order.

[ZLP955]

Thanks Kelley. I figured a 3.31 with a 302 would be a dog to drive, so less likely. Although this is purely a matter of speculation, does anyone know what the "standard" diff ratios were with the L35 and L48?

[Mike S]

Thanks Kelley. I figured a 3.31 with a 302 would be a dog to drive, so less likely. Although this is purely a matter of speculation, does anyone know what the "standard" diff ratios were with the L35 and L48?

I'm doing this from memory, my L35 w/TH400 has the 'standard' 3:07 open and the L35 w/Muncie has the 'performance' 3:31 posi.
Mike

[Jon Mello]

QL is the standard code used for the L48 cars. 99.9% odds that's what it came out of. Probably has the single bolt hole in the traction bar bracket on the axle, correct?

[ZLP955]

John and Mike, thanks for the info, much appreciated. Yes, has one hole in the bracket.