VERY low numeric rear end ratios
#1
VERY low numeric rear end ratios
I saw a post a while back about a rear end ratio around 2.2:1. I've never seen that low in anything other than a porsche.
Was a 2.2x ratio available in an Olds or Chevelle 10 or 12 bolt rear end?
Was a 2.2x ratio available in an Olds or Chevelle 10 or 12 bolt rear end?
#4
Some 80's cutlass' came with a 2.14 i've been told, but I never had one.
Mostly 2 series were 2.41 or 2.73 as previously stated.
#5
This might be helpful. I did not read it word for word. Gives a general idea.
http://www.hemmings.com/mus/stories/...feature22.html
Pretty sure my old 69 Impala had 2.29 gears.
http://www.hemmings.com/mus/stories/...feature22.html
Pretty sure my old 69 Impala had 2.29 gears.
#6
What are you going to do? Run in Bonneville?
#7
That'll be me, blasting across the salt flats in a jet powered, monkey navigated....oh nevermind...
Actually, I've got an LS motor in my 72 442 and 2.73 rear. I use it as a hiway cruiser. It's got a muncie, but I'm putting in a T10 that has a 3.42 1st. It's running 2400 at 70mph now. I can get a 70 chevelle 2.56 rear end locally for under $100. The LS motors run great at 2000 rpm, so I might pick that up.
Anyway, I was just curious what lower gears were available. I've never seen anything under 2.4 or 2.5.
Actually, I've got an LS motor in my 72 442 and 2.73 rear. I use it as a hiway cruiser. It's got a muncie, but I'm putting in a T10 that has a 3.42 1st. It's running 2400 at 70mph now. I can get a 70 chevelle 2.56 rear end locally for under $100. The LS motors run great at 2000 rpm, so I might pick that up.
Anyway, I was just curious what lower gears were available. I've never seen anything under 2.4 or 2.5.
#11
#12
About 10% increase running a 4L60 in OD. A little less with a manual trans. No theoretical stuff, real world experience.
It especially true with SFI motors with cams, heads, intakes, etc designed to run at under 2000 rpm on the hiway. They go to batch fire at about 2400 rpm.
It especially true with SFI motors with cams, heads, intakes, etc designed to run at under 2000 rpm on the hiway. They go to batch fire at about 2400 rpm.
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