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 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 09-08-2005, 06:20 PM   #1
Steven B
Senior Member
 
Steven B's Avatar
 
Join Date: Jan 2000
Location: LHC, AZ
Posts: 385
Rear end gear ratio

I'm getting ready to change gears in the rear end and want good mileage(have 4.11 now). I'm thinking of 3.08 in my half ton. I have a 4 speed with 3.50, 2.47, 1.65, 1.00. Would the 3.08 work OK? Or should I go with 3.42. Oh ya, 250 six motor
Steven B is offline   Reply With Quote
Old 09-08-2005, 08:09 PM   #2
acloco
Registered User
 
Join Date: Apr 2004
Location: Nebraska
Posts: 335
3.23 or 3.31 work the best...kind of in between...a little power, but better mileage.
acloco is offline   Reply With Quote
Old 09-08-2005, 09:03 PM   #3
71-longbed
Its Magically Delicious
 
71-longbed's Avatar
 
Join Date: Jan 2003
Location: oregon
Posts: 2,398
go with 3.42 .. you wont be disappointed
__________________
71 C10 LWB
350sbc -TH350
12 bolt 3.42 Posi



Of all my favorite things to do, The utmost is to have a brew.
My love grows for my foamy friend, with each thirst-quenching elbow bend.
Beer so frosty, smooth, and cold it's paradise pure liquid gold.
Yes beer means many things to me that's all for now cus I gotta pee.
71-longbed is offline   Reply With Quote
Old 09-09-2005, 12:53 AM   #4
llegos
Registered User
 
Join Date: Aug 2005
Location: pleasanton, CA
Posts: 570
i am also in the same position here. I have the NP435GA. i do plan on runnin 27ish" tires, but i dont know what gear ratio to put in. i have only really found 3.42 and 3.08 sets. where can i get 3.31 or 3.23 gears from? this is on a 12bolt
__________________
-Steve
llegos 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 09:30 AM.


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