The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 66 Short step "Trad Rod" build, A Pabst Blue ribbon theme

bird7263 · 02-20-2010, 10:52 PM

So, I did a little work this week. Found out my truck had 3.73's with an eaton posi. I thought it had 3.55's but I miscalculated. Also remember I am running a muncie 4 speed. So I am driving about 50 miles round trip for work. I am using the 66 as my DD. I was spinning 62 miles per hour at 3000 rpm. You can imagine my gas. $25 a day or so. So,,,,, I swapped in open rear end with 3.08's.. MUCH BETTER. Now I am doing about 65 at 2400 rpm. Talk about a life saver!!! Just not a fast out of the hole any more.

02-20-2010, 10:52 PM	#129
bird7263 Urban Chop Shop Join Date: Dec 2006 Location: Tigard Oregon Posts: 264	Re: 66 Short step "Trad Rod" build, A Pabst Blue ribbon theme So, I did a little work this week. Found out my truck had 3.73's with an eaton posi. I thought it had 3.55's but I miscalculated. Also remember I am running a muncie 4 speed. So I am driving about 50 miles round trip for work. I am using the 66 as my DD. I was spinning 62 miles per hour at 3000 rpm. You can imagine my gas. $25 a day or so. So,,,,, I swapped in open rear end with 3.08's.. MUCH BETTER. Now I am doing about 65 at 2400 rpm. Talk about a life saver!!! Just not a fast out of the hole any more. __________________ 2003 Chevy Trailblazer LTZ, 2.5" Susp Lift, Tinted, HID's/LED interior/ Lot of upgrades and little mods 1965 Chevy 1/2T Longbox, soon to be a slammed shop truck Build thread http://67-72chevytrucks.com/vboard/s...d.php?t=591266 Semper Fi Marines