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#1 |
Registered User
Join Date: Feb 2002
Location: Chattanooga
Posts: 151
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rear end questions?
i have checked the rear end by pulling the cover off and trying to count the gears to find out what gear ratio it is - i know it is a posi and i believe it to be a 3.42 is this possible? also it seems to have stopped the popping in the rear end with slow turns by changing the fluid and adding additive - still pops ever so often - my other question is how much fluid do i put in it? fill plug is low in differential - do i just fill it up until it comes out of the fill hole? help - thanks, Brent
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#2 |
Registered User
![]() Join Date: May 2002
Location: North Carolina
Posts: 1,234
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How are you going to fill it above the fill hole?
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Stepsides look like real trucks! Smitty ![]() |
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#3 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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When empty it will take about 3 1/2 pints. You can fill it until it comes out or until you can touch the fluid.
The ring gear should be stamped with the teeth count/ratio. Jim |
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#4 |
Registered User
Join Date: Feb 2002
Location: Chattanooga
Posts: 151
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rear end gear
does the gear ratio of 3.42 sound like it is correct? for a posi? again i am ignorant on this subject? thanks, Brent
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#5 |
Senior Member
Join Date: Jul 2001
Location: Muskegon,MI,USA
Posts: 6,026
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It is possible to have a 3:42 posi as they are available aftermarket.
Jim |
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#6 |
Registered User
![]() Join Date: May 2002
Location: North Carolina
Posts: 1,234
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Also available from late 70's on--until they went to 10 bolt.
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Stepsides look like real trucks! Smitty ![]() |
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#7 |
Registered User
Join Date: Jan 2004
Location: Garland TX Dallas area
Posts: 658
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I have a 69 with 3:42 posi show on the factory build sheet.
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#8 | |
Formerly yellow72custom
Join Date: May 2001
Location: Austin, TX
Posts: 7,531
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Quote:
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'72 Chevy C10 Mild 350/TH350/3.07. Ochre/White. Old high school ride. '70 GMC C2500 '62 327 4bbl/SM465/4.56-geared Dana 60. White/White. Project or parts truck. '97 Saturn SL DD. 1.9/5-speed. 40+ highway mpg |
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#9 |
Registered User
Join Date: Feb 2003
Location: The Rubber City
Posts: 5,498
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i'd like to see that too...the only 3.42's i've seen were in C/20 BB trucks w/ Dana 60 rear.
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1969 GMC K2500 ![]() 1996 Honda Accord 2007 Kawasaki KLR 650 |
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#10 |
Registered User
Join Date: Jan 2004
Location: Garland TX Dallas area
Posts: 658
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you got me I got home and looked at the build sheet and it shows positrack but I dont see where it says 3.42. I thought I saw it on there. I have had it apart and it dose have 3.42. I was told they did come with 3.42. This truck was a special orderd and built 08/18/69 so I figer its possiable. If I can get a good copy of this sheet can I post and some help me figure out waht this stuff means.
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#11 |
Senior Member
Join Date: Apr 2000
Location: Orlando, FL
Posts: 1,076
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Can you post some details of your truck. You didn't really say it was a 1/2 ton or 3/4 ton and whether it is a Chevy or GMC. All of this might help.
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............................................................ 68 Chevy CST SWB w/LS1, carb & 700r4. Golden Anniversary clone with a few improvements. |
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#12 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,721
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The Dana 60 trucks had 3.54. There is a 3.3 ratio 60 gearset that was available in the 80's, but not 67-72.
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44 Willys MB 52 M38A1 64 Corvette Coupe 68 Camaro 'vert LT1 & TH700 69 Z/28 355 12.6's @110 69 Chevy Short Step 4 1/2"/7" drop 72 Jimmy 4WD 4spd 4" & 35's 02 GMC 2500HD 4x4 Duramax |
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#13 |
Registered User
Join Date: Apr 2004
Location: san diego ca
Posts: 32
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I have question? I have newer style rear end, say a mid to late 80's 12bolt 5 lug rear end. Will the gear's ( 3rd member ) fit or interchange white a 69 chev 1/2 ton 12bolt 6 lug rear end. Before I start tearing things apart. PLEASE HELP My only means of transportation right now.
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67heaven327 |
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