Was there a "typical" rear gear ratio that GM put in an el Camino with a 10 bolt and Powerglide transmission? I looked on the passenger side axle tube and couldn't see any code at all... It's a '68 with a 327, 4 barrel. thank you.

EDIT>> did another search and looks like 3.08's or maybe even 3.36's since it has A/C....

3.08's almost 100% of the time.

Thomas

Everyone ive seen has been 3.08

I beleive the gear ratio is more likely 3.36 - 1 as in my 67 El Camino

thanks guys! I'll jack it up and do the spin test tomorrow. Hey motorhead62, nice stable. You like the 67's huh? I've got a '68 C10 SWB with a 496, my '69 SS Chevelle, and me and my dad are fixing to venture in together with this '68 el Camino for a strip/street project. :)

Hey Purs,

Where you at in West Texas? I am from the Lubbock/Spur area!

Abilene. I've got some extended family from Spur. Small world.

Could be 3.36. My '69 Malibu with 307 PG and AC has that. If it didn't have AC it would've gotten 3.08 std. This is per the '69 Chevelle specs and features guide. I verified mine has 3.36. BUT, a 350 4 bbl (255 or 300 hp) got a 2.73 std with PG and AC. Other ratios were optional. "Economy", "performance", and "special" ratios were available for almost every combo.

My 68 Cutlass convertible with a 2 speed has 3.08's

my 69 malibu with a 307 came with 3.36 (a.c. car)

mines a 68 malibu 327/275 4bbl, powerglide, 10 bolt, non posi
the axle tube reads out to be a 3.36

What is the best option for replacing an old powerglide in a 69 Chevelle w/ a 350 small block? Should I have it rebuilt, or swap it for something sharper? Thanks for any help.

my sugestion is to pull the cover and get the numbers off the ring gear. this gives you a chance to change out the gear lube also. when was the last time it was changed 1968?