The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1973 - 1987 Chevrolet & GMC Squarebody Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 02-10-2004, 12:33 PM   #1
low 84
Registered User
 
low 84's Avatar
 
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
posi

does a posi replace the carrier in the rear end or does it just attach to it.
__________________
'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
low 84 is offline   Reply With Quote
Old 02-10-2004, 12:58 PM   #2
NeCrOmAnCeR
Registered User
 
NeCrOmAnCeR's Avatar
 
Join Date: Feb 2004
Location: Hodgenville, Ky
Posts: 735
Yes, a posi replaces the carrier. You're ring gear bolts to the posi unit just like it did to the carrier. All the other parts contained in the carrier are removed as well.

Mike
NeCrOmAnCeR is offline   Reply With Quote
Old 02-10-2004, 02:56 PM   #3
low 84
Registered User
 
low 84's Avatar
 
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
so is there a 3 and 4 series posi? or just one posi and 3 and 4 series rings will both attach?
__________________
'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
low 84 is offline   Reply With Quote
Old 02-10-2004, 05:00 PM   #4
Captkaos
www.73-87chevytrucks.com
 
Captkaos's Avatar
 
Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
There are 3 and 4 series carriers regardless of type.
__________________
Chris Lucas
1973 Chevy C-10
1978 GMC Jimmy (2WD) - SOLD
1987 R10 twin turbo LS
1991 R3500 SRW CrewCab
1985 K5 diesel swapped project
1989 K5 2WD conversion w/ Vette susp Project
Captkaos Customs
73-87chevytrucks.com
Captkaos is offline   Reply With Quote
Old 02-10-2004, 07:05 PM   #5
low 84
Registered User
 
low 84's Avatar
 
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
ok, last question. if i buy a 4 series posi and 4 series R&P that is all i need to change my 12 bolt to 4 series if it was originaly 3 series open 3.07, correct? like there aren't any other parts that are different that i must change?
__________________
'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
low 84 is offline   Reply With Quote
Old 02-10-2004, 07:28 PM   #6
Captkaos
www.73-87chevytrucks.com
 
Captkaos's Avatar
 
Join Date: Dec 1999
Location: Birmingham, AL
Posts: 6,935
sure it is your last question..
Yes, when your order the gears and the differential (carrier) that will be all you need. They will(should) match your gears with the carrier.

The differential (carrier) is different due to the size of the pinion getting smaller/larger base on the gear change. A 4.10:1 ratio has a MUCH smaller pinion gear diameter than a 3.07:1 ratio, so the carrier flange that the ring gear bolts to is posistioned closer to the centerline of the pinion to make up this difference.
__________________
Chris Lucas
1973 Chevy C-10
1978 GMC Jimmy (2WD) - SOLD
1987 R10 twin turbo LS
1991 R3500 SRW CrewCab
1985 K5 diesel swapped project
1989 K5 2WD conversion w/ Vette susp Project
Captkaos Customs
73-87chevytrucks.com
Captkaos is offline   Reply With Quote
Old 02-10-2004, 07:29 PM   #7
low 84
Registered User
 
low 84's Avatar
 
Join Date: Jan 2002
Location: Houston, TX
Posts: 2,144
__________________
'51 F100, backhalf with a narrowed 9 and coil overs, 18.5" mickeys, monte front clip, +400" sbc in the works

'05 1500 Crew Cab

RIP
'84 swb 5/7 drop, solid cammed 408 w/ fully ported dart heads, th350 w/ 10 inch hughes, 12 bolt w/ 3.73 richmonds and a locker
'80 swb 4x4 in progress: 7" lift, 350 th350/np205, d44 and 1.5" ORD tie rod, 14BFF w/discs , armored diff covers, 40" MTR's
low 84 is offline   Reply With Quote
Reply

Bookmarks


Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -4. The time now is 09:27 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com