Slant *       6       Forum
Home Home Home
The Place to Go for Slant Six Info!
Click here to help support the Slant Six Forum!
It is currently Wed May 13, 2026 8:16 pm

Unanswered topics | Active topics


» » Tech Q & A » Transmission & Rearend

All times are UTC-07:00



Post new topic  Reply to topic  Page 1 of 1
  [ 5 posts ] 
  Print view Previous topic | Next topic 
Author Message
Nino
 Post subject: Gear ID's
PostPosted: Wed Jun 27, 2007 4:33 pm 
Offline
2 BBL ''SuperSix''
User avatar

Joined: Sat May 05, 2007 4:23 pm
Posts: 19
Location: Omaha,Ne
Car Model:
Is there a way to identify gear ratios in rear ends (71/4's) without dismantling? And what do I look for in the way of donor cars for my 66' Valiant. I would like to find a 3:23 or 3:55 set.
Thanks,
Top
   
Reply with quote  
sethmcneil
 Post subject:
PostPosted: Wed Jun 27, 2007 7:52 pm 
Offline
EFI Slant 6

Joined: Mon Oct 09, 2006 12:49 am
Posts: 267
Location: Burlington / West Seattle
Car Model:
have you been under your car yet?

take a wire brush with you, and look for a small tag under one of the bolts holding the cover in place
Top
   
Reply with quote  
dakight
 Post subject:
PostPosted: Wed Jun 27, 2007 8:24 pm 
Offline
Supercharged
User avatar

Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
Here is the method Dan posted a little over a year ago in reply to me:
Quote:
Chalk the inboard sidewall of the tire that'll turn and block the other tire (or don't lift it up) so that it can't turn even a little bit. Turn the marked tire through two full revolutions and count quarter-turns of the driveshaft by watching the rear U-joint caps as the come to face the pavement. Divide the number of quarter-turns by four to get your ratio.

16/4 = 4 = 3.91
14/4 = 3-1/2 = 3.54 or 3.55
13/4 = 3-1/4 = 3.21 or 3.23
12/4 = 3 = 2.93 or 2.94
11/4 = 2-3/4 = 2.71 or 2.76
10/4 = 2-1/2 = 2.45
9/4 = 2-1/4 = 2.26

_________________
David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.
Top
   
Reply with quote  
Doc
 Post subject:
PostPosted: Fri Jun 29, 2007 8:57 am 
Offline
Guru
User avatar

Joined: Mon Oct 14, 2002 4:32 pm
Posts: 4880
Location: Working in Silicon Valley, USA
Car Model:
Many of the early 7 1/4 rears had the ratio info. stamped onto the center housing.
After so many years, it is good to double check by "counting the turns".
DD

Image

Image
Top
   
Reply with quote  
dakight
 Post subject:
PostPosted: Fri Jun 29, 2007 10:01 am 
Offline
Supercharged
User avatar

Joined: Mon Sep 26, 2005 5:09 pm
Posts: 2946
Location: Gilbert, Arizona
Car Model: 1962 Plymouth Valiant Signet
And that was your reply to me in the same thread. :lol:

_________________
David Kight
'62 Valiant Signet, White
'98 Dodge Dakota
'06 Jeep Liberty

Growing older is unavoidable but growing up is strictly optional.
Top
   
Reply with quote  
Display posts from previous:  Sort by  
Post new topic  Reply to topic  Page 1 of 1
  [ 5 posts ] 

» » Tech Q & A » Transmission & Rearend

All times are UTC-07:00

Who is online

Users browsing this forum: Google [Bot] and 8 guests

You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

Search for:
Jump to:  
Powered by phpBB® Forum Software © phpBB Limited