1988 IROC need help with the rear end.
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Member
Joined: Nov 2007
Posts: 161
Likes: 0
From: Elverta, California
Car: 1988 Z28 Camaro
Engine: TPI 350
Transmission: TH350
Axle/Gears: 3.73 10 bolt
1988 IROC need help with the rear end.
I have a borgwarner rear end and I was wondering if 4.11 ratio will fit. I'm looking for a little better gearing and for any kind of help possible. I'm just starting to bracket race at Sac Drags on wednesday nights. Only upgraded to borg warner rear end. I ran little faster, but still want help and willing to learn new things. Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 1988 IROC need help with the rear end.
Aftermarket support for the 9 bolt is virtually non-existant. You'd have a hard time finding 4.11 gears.
Thread Starter
Member
Joined: Nov 2007
Posts: 161
Likes: 0
From: Elverta, California
Car: 1988 Z28 Camaro
Engine: TPI 350
Transmission: TH350
Axle/Gears: 3.73 10 bolt
Re: 1988 IROC need help with the rear end.
o ok well i was thinking about getting the 10 bolt newase. but y is it imppossible to get parts.
Moderator
Joined: Jan 2000
Posts: 20,981
Likes: 11
From: Mercedes Norte, Heredia, Costa Rica
Car: 1984 Z28 Hardtop
Engine: 383 Carb
Transmission: 4L60
Axle/Gears: 3.54 Dana 44
Re: 1988 IROC need help with the rear end.
There aren't enough 9 bolts out there to generate much interest in providing aftermarket parts for them.
Thread Starter
Member
Joined: Nov 2007
Posts: 161
Likes: 0
From: Elverta, California
Car: 1988 Z28 Camaro
Engine: TPI 350
Transmission: TH350
Axle/Gears: 3.73 10 bolt
Re: 1988 IROC need help with the rear end.
that sucks ill just chang it. What do you think of the 10 bolt. and the gearing i should go with.
Member
Joined: Jan 2006
Posts: 111
Likes: 0
From: Austin, TX
Car: 1983 Z-28, Black w/ Silver Stripes
Engine: LT1 350
Transmission: T56
Axle/Gears: 3.27 9 bolt posi discs
Re: 1988 IROC need help with the rear end.
you can ebay a set of gears for the 9 bolt, they surface every now and then as long as you are vigilant. Also there is a company called Jaws gears that make a set of 3.70 gears for it. Just a little info 
~JAKE
----------
PS, i like your hood
The crossfire hood is AWESOME! and far too rare!
~JAKE

~JAKE
----------
PS, i like your hood
~JAKE
Last edited by 83Z28BlackBetty; Nov 25, 2007 at 10:52 PM. Reason: Automerged Doublepost
Thread Starter
Member
Joined: Nov 2007
Posts: 161
Likes: 0
From: Elverta, California
Car: 1988 Z28 Camaro
Engine: TPI 350
Transmission: TH350
Axle/Gears: 3.73 10 bolt
Re: 1988 IROC need help with the rear end.
thanx ill call them monday. My gears are shot need a new set. found the hood in pick n pull for 20 bucks. hella light.
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