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12-09-2017, 12:55 PM
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#1 |
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Registered User
Join Date: Jul 2011
Location: Aptos
Posts: 366
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Gear ratio option in glove box?
I am looking for a specific ratio rear diff. 3.73 14bff. I am going back and forth with a seller that has a 91 R20 Burb and there is no tag on the diff.
I got him to snap a pic of the spid(?) on the glove box. Can anyone help? |
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12-09-2017, 01:21 PM
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#2 |
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Registered User
Join Date: May 2009
Location: Motor City
Posts: 9,248
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Re: Gear ratio option in glove box?
Rpo gt4 = 3.73.
K
__________________
Chevrolet Flint Assembly 1979-1986 GM Full Size Truck Engineering 1986 - 2019 Intro from an Old Assembly Guy: http://67-72chevytrucks.com/vboard/s...d.php?t=342926 My Pontiac story: http://forums.maxperformanceinc.com/...d.php?t=560524 Chevelle intro: http://www.superchevy.com/features/s...hevy-chevelle/ |
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12-09-2017, 03:10 PM
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#3 |
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Post Whore
  
Join Date: May 2015
Location: Alabama
Posts: 14,674
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Re: Gear ratio option in glove box?
and it has the g80...govlok diff...
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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12-09-2017, 03:11 PM
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#4 |
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Registered User
Join Date: Jun 2009
Location: Oroville, CA
Posts: 4,827
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Re: Gear ratio option in glove box?
G 80 is posi
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12-09-2017, 04:44 PM
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#5 |
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Registered User
Join Date: Dec 2016
Location: Hamilton County, Texas
Posts: 13
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Re: Gear ratio option in glove box?
Gov/Lok...Posi...limited slip. Can someone tell me what the difference is on these various rear diff items? Thanks.
__________________
RIDING.....a sure fire way to relieve cattle ranch burnout! '85 C10 Silverado LWB & 350/700R |
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12-09-2017, 06:40 PM
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#6 |
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Post Whore
Join Date: May 2015
Location: Alabama
Posts: 14,674
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Re: Gear ratio option in glove box?
google each one and you'll have more answers than you know what to do with..
__________________
Mongo...aka Greg RIP Dad RIP Jesse 1981 C30 LQ9 NV4500..http://67-72chevytrucks.com/vboard/s...d.php?t=753598 Mongos AD- LS3 TR6060...http://67-72chevytrucks.com/vboard/s...34#post8522334 Columbus..the 1957 IH 4x4...http://67-72chevytrucks.com/vboard/s...63#post8082563 2023 Chevy Z71..daily driver |
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12-10-2017, 02:14 AM
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#7 |
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Registered User
Join Date: Jul 2011
Location: Aptos
Posts: 366
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Re: Gear ratio option in glove box?
Sweet! That is the ratio I need. Fingers crossed that it is still that.
Thanks guys. |
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12-10-2017, 08:57 AM
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#8 |
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Moderator
Join Date: Oct 2008
Location: Wentworth, NH
Posts: 5,014
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Re: Gear ratio option in glove box?
JB7 means that axle is setup for 8400GVW brakes with 13" x 2-1/2" shoes. Not surprising with the Z82 towing package.
__________________
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