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Unread 09-17-2007, 12:32 AM   #1
Humboldt
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Undecided: 33 or 30 Spline D44

Im taking the jeep for a regear to 4.88's this comming week. Im going full Detroit in the rear with a lock-right upfront on 35" MT/R's. What I can't decide on is if I want to bother upgrading the rear to 33 splines at the same time or not.

I realize the 33 splines are stronger, but if I stay with the 30 spline, I can use the stock shafts as spares. If I go with 33 splines, I would have to buy another set and get the bearing/backing plate pressed on etc.

Thinking down the road, I can also see finding 30 spline shafts in a pinch would be much easier on trips. I drive to/from wheeling and driving home on just the front is not something I care to repeat often.

Any advise?

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Unread 09-17-2007, 01:23 AM   #2
Grewe02
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Mas Grande. Google it.
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Unread 09-17-2007, 01:49 AM   #3
Humboldt
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Yeah, I know the options. Just looking to see if its worth it ease of parts vrs strength.

My Battalion is flying into Va Beach (Oceana) for 3 days before going home Grew
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Unread 09-17-2007, 01:58 AM   #4
Grewe02
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Ooohhh... Well I tell you what, check your PMs and give me a call when you get here. I work mids on Oceana Sunday - Thursday.



Anyway, the Mas Grande kit comes with the 35 spline shafts, an ARB, seals and bearings. All of this for $1100. Honestly I don't think that price can be beaten for what you're getting.
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Unread 09-17-2007, 04:27 AM   #5
SteelBlueTJ
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I would go with a set of new shafts from Alloy USA. Get the 30 spline and they will be alot stronger than stock. The 30-spline Alloys are pretty tough. I don't really see the need to go to 33 spline. I've had my 30spline alloy's for over a year now on with 35" MTR's with no problems.

Last edited by SteelBlueTJ; 09-17-2007 at 04:39 AM..
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Unread 09-17-2007, 04:39 AM   #6
Humboldt
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Quote:
Originally Posted by SteelBlueTJ
I would go with a set of new shafts from Alloy USA. Get the 30 spline and they will be alot stronger than stock, but still 30 spline- meaning you can use your any oem ones as spares still. The 30-spline Alloys are pretty tough. I've had them for over a year now on 35" MTR's with no problems.
Exactly what I was thinking. Still open to input though.

Thanks for the reply.
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Unread 09-17-2007, 09:51 AM   #7
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maybe I should add a poll
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Unread 09-17-2007, 10:18 AM   #8
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I've got the 35 spline alloy usa shafts (is that the mas grande?)...not much use on them yet, but the way I look at it, if you guys aren't breaking them with the alloy 30 spline, then the 35 spline is extra security.
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Unread 09-17-2007, 10:20 AM   #9
jeeptillidie
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D60















that is my opinion
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Unread 09-17-2007, 10:32 AM   #10
ptowntj
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Originally Posted by jeeptillidie
D60

that is my opinion

and your opinion is completely unrelated to what the OP is asking. He's looking to regear, not do an entire axle swap.
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Unread 09-17-2007, 10:54 AM   #11
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Originally Posted by jeeptillidie
D60
that is my opinion
You do like the D60. Seems like it's the answer to any rear axle problem.
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Unread 09-17-2007, 11:00 AM   #12
Jerry Bransford
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If you go with an aftermarket hardened chromolly 30 spline like from Alloy USA or Superior axle, you can stick with 30 splines. I already twisted the splines off my stock 30 spline OE axle (Detroit Locker and 35" tires) but I haven't had any problem since upgrading to Alloy USA's beefed up 30 spline alloy axles.
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Unread 09-17-2007, 02:34 PM   #13
JeepRocks86
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personally i'm running factory 30 splines detroit rear, and 36s. I have twisted a 44 shaft a little, but not really bad. I have had a set of alloy shafts for a while and am just now installing them.

my bet is keep the 30s and upgrade to alloys or something like that. That way you have a spare set.

it's your money though.

one of the local shops is running a 33 spline ARB 44 with 37s. works great as well.
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Unread 09-17-2007, 02:39 PM   #14
Humboldt
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Yeah, Thanks for all the input. Im just gonna go with the USA Alloy 30s and keep the stockers for spares.
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Unread 09-17-2007, 02:49 PM   #15
VinoTJ
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Only problem with 33 or 35-spline shafts is quick replacements if you break one. You would/should not have a problem getting a quick replacement for a 30-spline shaft.
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