The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 08-12-2010, 09:37 PM   #1
Patriot
Registered User
 
Join Date: Oct 2009
Location: Summerset SD
Posts: 312
Question Fiquring out a Gear ratio

Hey fellas, I have a problem that I'm sure you Brainiacs can fiqure out for me.

I would like to know what the ratio of my Blazer will be in every gear of my sm465.

My choices are a 3.07 and a 3.73 axles.

I am trying to fiqure out what both will be in every combined gears....tranny and axle.

It will be a 350 with Sm465 and 205. Either 3.07 or 3.73.

Tranny gears are
1st...6.55 to 1.00
2nd...3.58 to 1.00
3rd...1.57 to 1.00
4th.. 1.00 to 1.00

Any ideas?? Do I just add or....???????????

Thanks fellas

Patriot----
Patriot is offline   Reply With Quote
Old 08-12-2010, 09:49 PM   #2
cableguy0
Senior Member
 
Join Date: Apr 2000
Location: Delta,Pa
Posts: 14,948
Re: Fiquring out a Gear ratio

everything gets multiplied if im remembering right. Your first gear ends up somewhere in the 20's You can pull a house down with either rear
__________________
Owner of North Point Car Care in Dundalk Md. We specialize in custom exhaust on both modern and classic vehicles. We are a full service auto shop from classics to modern vehicles. Feel free to contact me with questions. I will give a 10% discount to any board member.
cableguy0 is offline   Reply With Quote
Old 08-13-2010, 07:45 AM   #3
Keith Seymore
Registered User
 
Keith Seymore's Avatar
 
Join Date: May 2009
Location: Motor City
Posts: 9,226
Re: Fiquring out a Gear ratio

They multiply.

First gear: 6.55 x 3.07 = 20.11
Second gear: 3.58 x 3.07 = 10.99

or

First gear: 6.55 x 3.73 = 24.43
Second gear: 3.58 x 3.73 = 13.35

etc

K
__________________
Chevrolet Flint Assembly
1979-1986
GM Full Size Truck Engineering
1986 - 2019
Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926
My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524
Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/

Last edited by Keith Seymore; 08-13-2010 at 07:47 AM.
Keith Seymore is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:32 AM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com