Pre-88 chevy/gmc 4x4. It's a good easy swap. re-use your perches and your panard bracket. gears are 276 (& lower)307,340,& higher.
Posi is a little hard to find, but they did make them.
The optional 60 gear is 336, mainly in automatics. It is being repro'd but pricey at $399?
The "350" gear you asked about is really not a lot of change in RPMs. I'd do a 307 at least, unless you have an OD trans.
Last edited by F&J; 01-27-2008 at 08:03 PM.