05-26-2009, 11:27 AM
#1 Member
Join Date: Oct 2008
Location: Rockledge, PA
Posts: 377
Car: 1991 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.23 posi
91 axels into a 84 rearend?
Correct me if I'm wrong, but I'm assuming the axels in my 91RS are 28 spline and the axels in the 84 I'm rebuilding are 26......so, can I swap them? The 91 is an open 2.73..the 84 is a posi 3.23. Thanks
__________________ Stock 305 tbi/700R4, no smog, 89-90 style 16" iroc rims, UMI A-Arms,Edlebrock adj/panhard, UMI double adjustable roto-joint LCA's, UMI sfc's, wonderbar, poly swaybar bushings, Koni yellow rear shocks, KYB GR2 struts, J&M strut mounts, Moog springs & steering links, Earl's braided brake hoses, rebuilt steering box, 3" Borla catback, 4th gen seats, iroc grill, 3.23 posi with pbr upgrade
05-26-2009, 11:30 AM
#2 Moderator
Join Date: Jul 1999
Location: 51°N 114°W, 3500'
Posts: 13,970
Car: 87 IROC L98
Engine: 582 Alcohol BBC
Transmission: Powerglide
Axle/Gears: Ford 9"/31 spline spool/4.86
Re: 91 axels into a 84 rearend?
Your 84 posi will need to be replaced to a 28 spline posi to accept the axles but other than that, they will fit into the older housing.
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Hardtail Racing
All engine, no power adders! Bests: 9.029@150.45 (at altitude)
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05-26-2009, 11:31 AM
#3 Moderator
Join Date: Aug 1999
Location: Lawrence, KS
Posts: 16,248
Car: Met. Silver 85 IROC
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 91 axels into a 84 rearend?
Quote:
Originally Posted by
jb3829 Correct me if I'm wrong, but I'm assuming the axels in my 91RS are 28 spline and the axels in the 84 I'm rebuilding are 26......so, can I swap them?
They won't swap.
JamesC
__________________ "There are more things in heaven and earth, Horatio, / Than are dreamt of in your philosophy." Hamlet
"Convictions are more dangerous enemies of truth than lies." Nietzsche
05-26-2009, 12:54 PM
#4 Senior Member
Join Date: Sep 2008
Location: Central City, KY.
Posts: 1,624
Re: 91 axels into a 84 rearend?
James, why do you say that they won't swap?
05-26-2009, 01:09 PM
#5 Moderator
Join Date: Aug 1999
Location: Lawrence, KS
Posts: 16,248
Car: Met. Silver 85 IROC
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Re: 91 axels into a 84 rearend?
Quote:
Originally Posted by
big gear head James, why do you say that they won't swap?
I assume the OP wanted to swap axles only, and not the carrier.
JamesC
__________________ "There are more things in heaven and earth, Horatio, / Than are dreamt of in your philosophy." Hamlet
"Convictions are more dangerous enemies of truth than lies." Nietzsche
05-26-2009, 01:46 PM
#6 Member
Join Date: Oct 2008
Location: Rockledge, PA
Posts: 377
Car: 1991 RS
Engine: 305 TBI
Transmission: 700R4
Axle/Gears: 3.23 posi
Re: 91 axels into a 84 rearend?
Yeah....James is right, I just wanted to know if the axels would swap w/o replacing the posi. I already spent like $900 on the PBR upgrade from Ed Miller not to mention the $150 summit diff cover.....replacing the posi just aint in the budget right now
__________________ Stock 305 tbi/700R4, no smog, 89-90 style 16" iroc rims, UMI A-Arms,Edlebrock adj/panhard, UMI double adjustable roto-joint LCA's, UMI sfc's, wonderbar, poly swaybar bushings, Koni yellow rear shocks, KYB GR2 struts, J&M strut mounts, Moog springs & steering links, Earl's braided brake hoses, rebuilt steering box, 3" Borla catback, 4th gen seats, iroc grill, 3.23 posi with pbr upgrade
05-26-2009, 06:52 PM
#7 Senior Member
Join Date: Sep 2008
Location: Central City, KY.
Posts: 1,624
Re: 91 axels into a 84 rearend?
05-26-2009, 06:52 PM
ThirdGen
1992 Camaro
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Tags 28 , 84 , 91 , camaro , carrier , end , iroc , posi , rear , s10 , spline , swap
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