|
|
|
03-28-2004, 11:34 PM
|
#1 |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
rear end code
Im trying to figure out what the ratio is on a posi rear end off of a 71 pickup. I could only find the following on the axle and cant match them up with anything.
CON3 B81 GM60 Anybody know what it is? Thanks
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
03-28-2004, 11:56 PM
|
#2 |
|
Registered User
Join Date: Mar 2004
Posts: 37
|
;(
No idea on the decode, worst comes to worst you can count the teeth..
http://www.usgear.com/tl/gm2.htm
__________________
1972 Cheyenne Olive over Dark Green, Longbed 402BBC, TH400 |
|
|
|
|
03-29-2004, 06:11 AM
|
#3 |
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
|
Are you sure you're looking in the right place? It will require a GOOD cleaning, and the numbers will be stamped exactly 6" out from the pumpkin, at about 2'o'clock, on the passenger side axle tube. It should be something like Txx.
|
|
|
|
|
03-29-2004, 02:43 PM
|
#4 | |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
Quote:
thanks
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
|
|
03-31-2004, 12:31 AM
|
#5 |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
I found this:
NF 3896838 It was on the passenger side of the pumpkin. It was dark and I didnt see a number on the axle, does this # help any?
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
|
04-01-2004, 01:38 PM
|
#6 |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
Do I need to look for another new number?
Does this one not mean anything?
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
|
04-01-2004, 09:02 PM
|
#7 | |
|
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
|
Quote:
|
|
|
|
|
|
04-01-2004, 09:10 PM
|
#8 |
|
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
|
Here, this picture should help...Notice the CLEAN area? THAT'S how clean you have to get it to see the numbers...SHINY clean.
|
|
|
|
|
04-02-2004, 03:38 PM
|
#9 |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
Thanks a lot TIMSPEED, Ill check on that today. Im just hoping this posi hasnt got really low gears.
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
|
04-03-2004, 02:39 PM
|
#10 |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
Got it this time:
THBW0416E
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
|
04-03-2004, 05:39 PM
|
#11 | |
|
Join Date: Jan 2003
Location: Modesto, CA
Posts: 1,321
|
Quote:
|
|
|
|
|
|
04-04-2004, 01:56 PM
|
#12 |
|
Senior Member
Join Date: Jul 2002
Location: Lindsay, TX
Posts: 1,245
|
Nice, 3.07 posi is going into my truck.
Thanks TIMSPEED
__________________
68 Chevy 383/350 w/shift kit, 380hp/425ft-lbs, 4.5/5 drop, 17" TT2s 64 Cadillac Sedan DeVille |
|
|
|
|
04-08-2004, 04:14 AM
|
#13 |
|
Registered User
Join Date: Feb 2004
Location: Stokesdale, North Carolina
Posts: 341
|
In these old rear ends you never know if someone changed the ratio at any point in time. The best way to find the ratio is to take off the diff. cover and take a look at the ring gear. On the outside part of the ring gear there will be two numbers. Take these two numbers and divide them, this will tell you what ratio you have. For example you might see the numbers 41 12 which comes out to be a 3.42 ratio
__________________
1967 SwB, 454 BB, 4L80E trans, 3.73 eaton posi 1997 C2500 Ext Cab 5.7 Liter 1955 3/4 ton 1st series w/ 235 straight six Sold it 
|
|
|
|
 |
| Bookmarks |
| Thread Tools | |
| Display Modes | |
|
|
Hybrid Mode
