Dana 36 Question
Thread Starter
Racer
Joined: May 2005
Posts: 497
Likes: 1
From: Casa Grande Az
Dana 36 Question
Alright, Ive searched the forums and can't find the answer i need.
Are all dana 36 differentials the same from 84/85 on? Meaning can I put a differential out of say a 87 or 88 in my 92 A4?
Thanks in advance.
Are all dana 36 differentials the same from 84/85 on? Meaning can I put a differential out of say a 87 or 88 in my 92 A4?
Thanks in advance.
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
The only differences I'm aware of are the mounting holes for the camber rod brackets. I seem to recall the earlier ones are smaller. If that is the case it is an easy fix, just drill them out larger so your bolts will pass through, no threads involved.
Race Director
Joined: Jun 2001
Posts: 10,956
Likes: 682
From: Marlboro country MA
I've been modding my LT1 92 for 6 years. The biggest single improvement was achieved by changing the gears on the Dana36. You'll love the change whether you race it or just enjoy spirited driving.
Thread Starter
Racer
Joined: May 2005
Posts: 497
Likes: 1
From: Casa Grande Az
The plan is to install the 3.07 diff , then sometime in the future have my original diff rebuild with a set of 3.54's.
Current Mods I have atm:
MDS Opti / Coil / 8.5 wires , SLP Cold air intake, Corsa catback, Cat elims, Hooker ceramic coated super comp headers, ect ect. It runs pretty good atm even with 2.59s holding it up.
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Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Ya I've owned the car for 3 years and already completed alot of mods. However the 2.59's have GOT to go. I figure with the mods that are already done, even stepping up 3.07's will be a world of difference.
The plan is to install the 3.07 diff , then sometime in the future have my original diff rebuild with a set of 3.54's.
Current Mods I have atm:
MDS Opti / Coil / 8.5 wires , SLP Cold air intake, Corsa catback, Cat elims, Hooker ceramic coated super comp headers, ect ect. It runs pretty good atm even with 2.59s holding it up.
The plan is to install the 3.07 diff , then sometime in the future have my original diff rebuild with a set of 3.54's.
Current Mods I have atm:
MDS Opti / Coil / 8.5 wires , SLP Cold air intake, Corsa catback, Cat elims, Hooker ceramic coated super comp headers, ect ect. It runs pretty good atm even with 2.59s holding it up.
Drifting
Joined: Oct 2006
Posts: 1,934
Likes: 3
From: Citrus Heights California
Your plan could have one flaw, even though all D36 rear ends are the same externally, the internal carrier is different depending on ratio. I believe you will need to use a thick ring gear if you want to change your stock 2.59 unit to 3.54, hopefully someone else can verify that. My understanding is that the thick gear set is more prone to noise issues even when set up properly.
Race Director
Joined: Sep 2000
Posts: 17,298
Likes: 34
From: The Top of Utah
Originally Posted by toptechx6
I believe you will need to use a thick ring gear if you want to change your stock 2.59 unit to 3.54, hopefully someone else can verify that. My understanding is that the thick gear set is more prone to noise issues even when set up properly.
The noises generated by a gear set come from where the gears mesh. It can come from the manufacturing process and also from how the gears are set up. Some manufacturers, notably Richmond, have a reputation for making gears that are noisy. The thickness of the ring gear is a non-issue for noise. A thicker ring gear can slightly compromise the strength of the complete carrier assembly, however.
RACE ON!!!
Safety Car
Joined: Jun 2006
Posts: 3,629
Likes: 28
From: FL
Correct. If you want to put a "3 series" gear set on to a "2 series" differential case, you will need a gear set that has a "thick" aftermarket ring gear. Otherwise, with a standard style gear set you would need to change the diff, internal, case to a "3 series" case.
The noises generated by a gear set come from where the gears mesh. It can come from the manufacturing process and also from how the gears are set up. Some manufacturers, notably Richmond, have a reputation for making gears that are noisy. The thickness of the ring gear is a non-issue for noise. A thicker ring gear can slightly compromise the strength of the complete carrier assembly, however.
RACE ON!!!
The noises generated by a gear set come from where the gears mesh. It can come from the manufacturing process and also from how the gears are set up. Some manufacturers, notably Richmond, have a reputation for making gears that are noisy. The thickness of the ring gear is a non-issue for noise. A thicker ring gear can slightly compromise the strength of the complete carrier assembly, however.
RACE ON!!!
