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Old 03-21-2013, 03:10 PM   #1
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which locker to buy

So I'm going to re-gear my dana 30/35 from 3:07's to 4:56's. While I'm in there I'm going to lock both. I run 33" tires now w/ little intent of going any bigger on these axles. I'm not interested in an air locker so I'm going e-locker. As of this point I'm looking at getting an eaton for the front and I'm torn between an auto for the rear or spend the extra $ and get another selectable. I'm hesitant to put that much cash into a d35. I'll be building 1 tons for a future upgrade but for now i need to get out of these open diff's. The tons will take a while to build and get all the other things required for a good install, not to mention that my jeep has to stay streetable. My current set up is a 4.0l, 5spd, 3:07's, 33"tires, 5.5"suspension lift, 2" bl, 1-1/2" ml, novak cable, TT, sye w/tw driveshaft. My jeep barley see's the street( maybe 30-45 mi/mo), but HAS to remain streetable (Just in case I lose my work truck).So whats everyones opinion? My plan is this

(A)4:56 gears/install kit d30/35
eaton e-locker (front d30)
Spartan auto locker (rear d35)
total$ 1500
or
(B)4:56 gears/instal kits d30/35
auburn ecited in both
total$1962
or
(C)4:56 gears/install kit d30/35
eaton e-locker in both
total$ 1956.

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Old 03-21-2013, 03:27 PM   #2
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Remember that the Ected is a limited slip when not locked. If you are ever running in snow or ice that is not a good combination for the front axle as steering will suffer.

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Old 03-21-2013, 03:38 PM   #3
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The Auburn ECTED acts as an LSD when unlocked, but the Eaton E locker acts as like an open diff when unlocked, at least according to Eaton's website: http://www.eaton.com/ecm/groups/publ.../ct_128304.pdf.

(If I'm wrong and there's something I need to read up on, please let me know, since I'm considering putting an Eaton E locker up front and I don't want it up there if it acts like an LSD when unlocked)

I would nix option B.

If most of your driving is not on road and you just need it as a backup and you're going to ditch the 35 anyway, I think I'd go with option A. It's the cheapest and most effective option and IF you end up needing the jeep as your dd and you absolutely can't stand the function of the spartan in the rear, you have the option of putting the spider gears back in there. JMO
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Old 03-21-2013, 05:20 PM   #4
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I would never install any kind of a locker into a stock Dana 35 running the OE carbon steel 27 spline axle shafts.... it's just not strong enough for any kind of locker. For now, I would only install a front locker. 4.56 gearing is ideal for your 33" tires, good decision there.
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Old 03-22-2013, 08:24 AM   #5
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Just ordered everything from baseline 4x4. Tony hooked me up. I ended up w 4:56 gears, master install kits, a spartan auto locker for my d35, and aneaton e locker for my d30. Totalled out at just under 1500$.
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Old 03-22-2013, 10:11 AM   #6
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Originally Posted by Crash20657 View Post
...a spartan auto locker for my d35...
Bad decision... at least in my strongest possible personal opinion.

Check this page out... http://www.billhughes.com/dana35c/ which shows photos of nothing but broken Dana 35 axle shafts from Jeepers having installed lockers and/or too big of a tire size onto their Dana 35 rear axles.
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Old 03-22-2013, 10:15 AM   #7
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Bye bye rear axle
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Old 03-22-2013, 10:39 AM   #8
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Quote:
Originally Posted by Jerry Bransford View Post
I would never install any kind of a locker into a stock Dana 35 running the OE carbon steel 27 spline axle shafts.... it's just not strong enough for any kind of locker. For now, I would only install a front locker. 4.56 gearing is ideal for your 33" tires, good decision there.
This. Then do an auto locker and shafts later. So you can still regear now. If you truly plan on staying on 33s
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Old 03-22-2013, 01:15 PM   #9
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Jerry and Ryan, would you be comfortable putting a locker of any kind into, say, a super 35, or are you dubious of the 35 regardless of what's been done to it? Would you leave it open and wait to swap?
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Old 03-22-2013, 01:24 PM   #10
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Jerry and Ryan, would you be comfortable putting a locker of any kind into, say, a super 35, or are you dubious of the 35 regardless of what's been done to it? Would you leave it open and wait to swap?
The super 35 kit commonly locks the d35 up to 35 inch tires. So I would say yes. If there is a higher spline count auto locker to go with a higher spline count chromoly axle shaft, I would go that route. I know they normally do the super kit with a Detroit, so you'd have to look into the Sparta Aussie or others.
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Old 03-22-2013, 02:02 PM   #11
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Jerry and Ryan, would you be comfortable putting a locker of any kind into, say, a super 35, or are you dubious of the 35 regardless of what's been done to it? Would you leave it open and wait to swap?
Installing a Super 35 kit from Superior Axle makes installing a locker & 35" tires onto a Dana 35 a very suitable thing to do. The 30 spline hardened chromolly alloy axle shafts included in Superior Axle's Super 35 kit are actually stronger than OE carbon steel 30 spline Dana 44 shafts.
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Old 03-22-2013, 02:12 PM   #12
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Quote:
Originally Posted by Jerry Bransford
Installing a Super 35 kit from Superior Axle makes installing a locker & 35" tires onto a Dana 35 a very suitable thing to do. The 30 spline hardened chromolly alloy axle shafts included in Superior Axle's Super 35 kit are actually stronger than OE carbon steel 30 spline Dana 44 shafts.
How can you tell what kit was put in one my buddy just bought a jeep and had a d35 when we pulled off the rim we saw superior axel shafts but don't know what else was done to it
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Old 03-22-2013, 02:30 PM   #13
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A true Superior Axle Super 35 kit includes a full-case locker like a Detroit Locker or ARB Air locker in addition to 30 spline Evolution series axle shafts that replace the OE 27 spline shafts.

It could be that your buddy has that or simply OE-strength replacement 27 spline axle shafts or their stronger alloy 27 spline shafts that are not as strong as what comes in a true Super 35 kit.
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Old 03-22-2013, 02:37 PM   #14
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I run Detriot in my 35 with 4.88s and chromos. I know quite a few people in my area that have welded and run every other kind of locker in a stock 35. The locker wont destroy your axle. Your right foot will. Be careful and dont bounce your junk around or try and roast tires and youll be fine. Its all in how you drive. I wouldn't be concerned at all with a locked stock 35 if you can drive it accordingly.
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Old 03-22-2013, 03:27 PM   #15
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I run Detriot in my 35 with 4.88s and chromos. I know quite a few people in my area that have welded and run every other kind of locker in a stock 35. The locker wont destroy your axle. Your right foot will. Be careful and dont bounce your junk around or try and roast tires and youll be fine. Its all in how you drive. I wouldn't be concerned at all with a locked stock 35 if you can drive it accordingly.
Before I knew any better 14-15 years ago, I installed a locker into my then-Dana 35 rear axle. I was EXTREMELY gentle with it on its one offroad trip which went fine with no breakage. Then 3-4 weeks later while doing a simple u-turn at a light controlled intersection, it busted up. I had a grand total of perhaps 6 weeks on it and I NEVER EVER got on it, got it bouncing, or any other form of abuse. So being gentle on it as I was is no guarantee at all. I was absolutely paranoid I was going to break it so I was as gentle as possible... so I have personal experience with the Dana 35 not being up to a locker no matter if you're gentle or not. It's not a matter of if it will break, it's only a matter of when it will break.
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Old 03-22-2013, 08:49 PM   #16
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Another person voting for no on the dana 35 locker combo. Broke mine with 32"s and no serious abuse. One small climb in front of a bunch of people watching me, not on the throttle at all. Then "snap" it went, and a painful drive out with a log and ratchet straps on the tire to hold it in. Then in went tho ford 8.8". The super 35 kit is accepstable but costs more than most swaps if your doing the work yourself.

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