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03-20-2015, 12:34 PM | #1 |
Registered User
Join Date: Mar 2015
Location: Centreville, MD
Posts: 20
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dont know which series my carrier is
im looking to put a posi in my truck. i'm not exactly sure which series i have now but i have 3.73 gears and would like to keep it that way. i was wondering if a 4 series posi would fit in a 3 seires
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03-20-2015, 12:38 PM | #2 |
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Join Date: Jan 2002
Location: Williston, ND
Posts: 2,999
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Re: dont know which series my carrier is
3.73 gears are a series 4 carrier. The different carriers cover a set of numerical gear ratios
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03-20-2015, 12:49 PM | #3 |
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Join Date: Mar 2015
Location: Centreville, MD
Posts: 20
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Re: dont know which series my carrier is
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03-20-2015, 01:34 PM | #4 |
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Join Date: Jan 2012
Location: Henderson,TX
Posts: 336
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Re: dont know which series my carrier is
they make 3.73 that will fit a 3rd series carrier. my truck originally had a 3.08 in it and I ordered a 3.73 that fit the 3.08 carrier. it is a Richmond I bought from summit racing so it is possible you have the same thing.
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03-20-2015, 01:45 PM | #5 |
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Join Date: Nov 2001
Location: Rapid City, SD
Posts: 2,281
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Re: dont know which series my carrier is
A variety of companies make both a 3 series 3.73's and 4 series 3.73's.
But OEM only had 4 series 3.73's. If the previous owner rebuilt the rearend with a 3 series 3.73 to go on an originally numerically lower gear. Then you may need to check it out first.
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My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
03-20-2015, 02:12 PM | #6 |
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Location: Tucson
Posts: 2,183
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Re: dont know which series my carrier is
Identifying which series carrier you have is determined by measuring the distance between the face of the ring gear flange to the bearing seat on the ring gear side as shown in the photo. Series 4 has the greatest distance, series 3 in the middle and series two the least.
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03-20-2015, 03:04 PM | #7 | |
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Join Date: Nov 2001
Location: Rapid City, SD
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Re: dont know which series my carrier is
Quote:
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My Trucks: 1967 Chevrolet Short Wide Box 327 TH350 9" w/3.90 gears paint will be White - Current Project 1967 Chevrolet Custom LWB 283 TH400 3.73 Posi, no-AC, no-PS, no-PB, bench-seat, small-window - mostly orig driver 1967 Chevrolet CST LWB originally a 327 TH400 3.73 Posi AC PS PB, had Buddy Buckets, Small Window - parts truck 1967 Chevrolet CST LWB, 283 MT 3.73 had Buddy Buckets, Panoramic Window - parts truck 2001 Chevrolet 3500 2WD Crew Cab Dually 8.1L Allison White |
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03-20-2015, 11:12 PM | #8 | |
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Join Date: Mar 2015
Location: Centreville, MD
Posts: 20
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Re: dont know which series my carrier is
Quote:
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