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Old 04-24-2013, 12:18 AM   #1
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4.56 gear question

I'm thinking about re gearing finally but had a couple questions. I have the dana 35 rear but do not know that if I re-gear to the 4.56 and later swap in the ford 8.8, would I have to purchase a new rear axle set to fit the 8.8 housing? I know the 8.8 is nearly a direct fit for the 95 yj 4.0 dana 35, but am not sure if I should re-gear now before the swap (some time in the not so near future) or wait to re-gear until after the swap because the dana 35 gear set may or may not fit into the 8.8 housing . . .

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Old 04-24-2013, 12:43 AM   #2
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I would wait. I did re-gear my D35 and now I have to replace it cause its junk. And I wish I had put the money into a different axle instead of re-gearing to 4.56 in my D35.

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Old 04-24-2013, 01:21 AM   #3
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Originally Posted by piercejoelm View Post
I'm thinking about re gearing finally but had a couple questions. I have the dana 35 rear but do not know that if I re-gear to the 4.56 and later swap in the ford 8.8, would I have to purchase a new rear axle set to fit the 8.8 housing? I know the 8.8 is nearly a direct fit for the 95 yj 4.0 dana 35, but am not sure if I should re-gear now before the swap (some time in the not so near future) or wait to re-gear until after the swap because the dana 35 gear set may or may not fit into the 8.8 housing . . .
To answer your question, Yes. You would have to purchase different gears when you swap into your 8.8. The 8.8 is a compleetly different rear end. It is almost a direct swap in that the width is almost the same, and the lug patern matches the 5 on 4.5 lugs. Other than that, it is compleetly different. Different axles, Different Ring Gear/Pinion, Different carrier.

Now as to should you re gear now or wait. That depends on how long before you go with your 8.8. If it is going to be a year or two then go ahead and do the gear swap. Just know if you go with a larger tire (35's) you may have trouble with that D35 rear. It is just not built for that larg of a tire. Especially if you lock the rear.

If you are just changing gears, the ring gear and pinion will run you about 150 or 160 bucks, and you will most likely need a new carrier that is for 4.10 gears and numerically higher. That will cost you another 90 bucks or so. THen unless you know how to set one up, you will have to pay a shop to do the swap. This can cost you anywhere fron 150 to 250 bucks. Depending on the shop.

Now if you are looking to do a super 35 kit with axles, locker, gears, the entire thing. I would say wait for the 8.8.

Another thought is if you want to go 4.56 now with your D35 rear, I can hook you up. I have a 4.56 ring gear and pinion and carrier sitting in a box in my shop I took out of my old rear end when I swaped to my 8.8. THe ring gear would need to be taken to a machine shop and have a bolt that broke off removed, but other than that, they are not hurt. If you are interested, hit me up with a PM. We will talk before I put them on Ebay.
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Old 04-24-2013, 01:26 AM   #4
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Ive 33x12.5" tyres so i regeared mine to 4.56 + added the Superior 35 shaft upgrade with 30 spline + detroit locker. Ive rode hard, riding and jumping over sand dunes for the last one year and its holding up just fine.
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Old 04-24-2013, 01:32 AM   #5
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Originally Posted by ruskinm View Post
Ive 33x12.5" tyres so i regeared mine to 4.56 + added the Superior 35 shaft upgrade with 30 spline + detroit locker. Ive rode hard, riding and jumping over sand dunes for the last one year and its holding up just fine.

I have a buddy that runs stock axles and a spartain lunch box locker in his with 35's and has not had any problems either. Then I also know folks that kill axles like crazy. I broke a spider gear (which a locker will cure no doubt). I think it is the luck of the person. So many say it is not if but when you break the D35. Not sure if that is true or not, but sure seems crazy how it works out for different people.
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Old 04-24-2013, 01:37 AM   #6
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I have an ARB in my d35 and i have had spider gears go out twice on my now. But I do agree it works different for different driving styles.
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Old 06-29-2013, 09:50 PM   #7
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You still thinking of regearing the dana 35? to 4.56?

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