Tire size affecting gear ratio

Tire size affecting gear ratio

06-10-2001, 03:48 AM

#1 (permalink)

SHOOT1SAM

Non Member

Offline
Join Date: Apr 2001 Location: U.S.A. Posts: 53

Tire size affecting gear ratio

Can someone explain how changing tire sizes affects the rear end gear ratio? I've been told that taller tires will essentially give me a higher gear ratio, which, as I understand it, would make towing somewhat easier. If that is accurate, at what size tire difference does this begin to take effect? Also, if the above is accurate, wouldn't that give a negative effect on overall fuel economy for someone who doesn't tow too often?

Conversely, again if the above is accurate, couldn't someone with 4.10's reduce their tire size and gain in economy?

Thanks in advance.
Sam

__________________
2000, QC-2500, 4X4, LWB, Automatic, Dark Garnet (say it fast & hard-it's almost like cussing), Mobil-Delvac 1, Mag-Hytec double deep tranny pan & rear differential cover w/ Red Line 75w-140 synthetic,

Non members can only view the initial post on threads more than 7 days old. There are 5 additional replies on this thread that you could view if you were a member.

TDR Membership offers many benefits including:

4 issues of the TDR magazine per year including these columns:
- Tailgating - A Letter From The Editor
- Letter Exchange - Responses From The Readers
- Member2Member - Members' Solutions To Members' Questions
- Technical Topics - Service/Parts Update
- First Generation - Owner-Specific Articles On The '89 - '93 Dodge Diesel Trucks
- 12-Valve Engines - Owner-Specific Articles On The '94 - '98.5 12-Valve Dodge Diesel Trucks
- 24-Valve Engines - Owner-Specific Articles On The '98.5 - '02 24-Valve Dodge Diesel Trucks
- Third Generation - Owner-Specific Articles On The '03 And Newer Dodge Diesel Trucks
- Blowin' In The Wind - Industry News
- Shadetree - Back To The Basics
- Celebrity Corner - The Shadetree Mechanic - Sam Memmolo
- From The Shop Floor - Tips From Turbo Diesel Repair Shops
- Products Showcase - Featured Products
- TDRelease - Vendor Press Releases
In many areas of the country a local chapter with events
A yearly printed copy of the TDR Travel companion listing approximately 700 TDR members across the country willing to help you if you have trouble on the road
Complete access to the TDR website including:
- Ability to do advanced searches over 1.1 million posts
- Access to members only forums (Truck 911, FAQ Forums, Discontinued parts support, Rigs spotted, Pay it forward, Other, and Political)
- Posting ability to the forums
- Ability to read an unlimited number of posts from the forums
- Can customize your forum list to your interests
- Can choose 1st, 2nd, 3rd gen, or rotating header graphics
- Limit searches to forums your interested in
- View posts since you last logged on
- Private message ability to other members
- Chat room access
- Diesel truck specific TSB listing by model year
- Online access to the Travel Companion database (with most current information)