Originally Posted by red58
there was no positrac in 55 - the standard 1/2T rear is 3.90, with the OD trans it was 4.10 .... aftermarket 3.38 gears are available near you, don't know how well they'd do with the 235 around town

Bill


I will jack in the am but sure looks like a posi(limited slip) with the 2 patches of tire left behind. May have been swapped out in the last 54 years. Checked with the aftermarket available in my area and $1000 kind of scares me. Working on a GMC rear option.

Last edited by hb32; 06/07/2009 9:35 AM.

1955 Chevy 3100