trans / rearend question
Thread Starter
|
Fleet Mechanic
Joined: Aug 2013
Posts: 1,691
Likes: 2
From: Fallon NV
trans / rearend question
OK i have a 59 f100 2x4. it had the 292 v8. the rear end is stock as far as I know and does not have the gearing tag on it. I have a new trans out of a 82 f350 that had a rear end with 4.53;1 r&p.. the original tire size was 215 85 16 I believe. What is the R&P for the stock f100 rear end? I am hoping it is like a 3:1 or near that so I can take the 3 speed with a granny and use it like a 4 speed.
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
Data plate in glove box will tell you what rear end you have. Prolly not a 3:1 Not too fuel conscious back then and not many highways nor would you drive your truck on one anyway. I just sold a 3:1 not long ago to a member here. Should be a number on data plate under the axle section. Middle right of data plate. Look up that number. I have 01 and I believe that translates to a 3.7:1.
You can also figure it out by counting drive shaft revolutions and tire revolutions while you turn either. Should be between 3 and 4 or more drive shaft to one wheel turn. Viola there is your ratio.
Clear as mud?
You can also figure it out by counting drive shaft revolutions and tire revolutions while you turn either. Should be between 3 and 4 or more drive shaft to one wheel turn. Viola there is your ratio.
Clear as mud?
Elder User
Joined: Jun 2011
Posts: 940
Likes: 4
From: Illinois
Data plate should be on inside of glove box door. It least that's where mine is?
Tuned
Joined: Sep 1999
Posts: 436
Likes: 32
From: Sonoita
Trending Topics
Cargo Master
Joined: Aug 2004
Posts: 2,575
Likes: 36
From: Greenville, SC
It should be a 3.7:1 unless someone changed it. Only way to know for sure is to pull the axles, drop out the differential and count the gears teeth
FTE Stories
Ford Trucks for Ford Truck Enthusiasts
2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)
Brett Foote
Top 10 Ford Truck Tragedies
Joe Kucinski
AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make
Brett Foote
Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!
Michael S. Palmer
Ford's 2001 Explorer Sportsman Concept Looks For a New Home
Verdad Gallardo
10 Best Ford Truck Engines We Miss the Most!
Joe Kucinski
2026 Shelby F-150 Off-Road: Better Than a Raptor R?
Brett Foote
2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!
Michael S. Palmer
10 Most Surprising 2026 Ford Truck Features!
Joe Kucinski
Ford Parts Specialist
Joined: Nov 2006
Posts: 88,826
Likes: 784
From: Simi Valley, CA
Rating Plate located on the drivers side A pillar (windshield post) or on the inside of the glove box door.
Thread
Thread Starter
Forum
Replies
Last Post
twin me beam
1961 - 1966 F-100 & Larger F-Series Trucks
10
Dec 13, 2014 09:14 AM
skfinch
1967 - 1972 F-100 & Larger F-Series Trucks
9
Sep 17, 2006 12:39 PM