![]() |
![]() |
#1 |
Registered User
Join Date: Mar 2002
Location: woodstock, alabama, usa
Posts: 938
|
rear axle question
I have a 71 with 3.08 positraction 12 bolt truck rear (3.07?) and its gonna need more
Gear. Can i go to a 4.11 or higher gear set in this housing? Or do i have to keep It 3.73 or below? Anybody know for certain? Thanks,Tony
__________________
i survived cancer and kidney stones, but my kids are killing me. |
![]() |
![]() |
![]() |
#2 |
All about them K’s
![]() Join Date: Jun 2014
Location: Land of Entrapment
Posts: 6,392
|
Re: rear axle question
The housing is fine but you'll likely have to swap the carrier.
__________________
Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 315/75/16's |
![]() |
![]() |
![]() |
#3 |
Registered User
Join Date: Dec 1999
Location: Austin, TX, USA
Posts: 7,721
|
Re: rear axle question
I ran thick 4.10 gears in my Jimmy when it still had the 12 bolt. You can buy gears that will work with your 3 series carrier.
But if you have a 4 series you can't go numerically lower as the gears would be too thin.
__________________
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 |
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Mar 2002
Location: woodstock, alabama, usa
Posts: 938
|
Re: rear axle question
thanks guys, thats what i needed to know, Tony
__________________
i survived cancer and kidney stones, but my kids are killing me. |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Dec 2015
Location: Newark ,Delaware
Posts: 158
|
Re: rear axle question
![]() |
![]() |
![]() |
![]() |
Bookmarks |
Thread Tools | |
Display Modes | |
|
|