Swap D35 with D44a - JeepForum.com
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post #1 of 17 Old 05-04-2009, 11:35 PM Thread Starter
WhiteOut
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Swap D35 with D44a

Is this swap worth it? I can get a D44a from a 98 5.2 with 3.73 gears, LSD and discs for a couple hundred. The only thing is it has a bad pinion bearing, so it needs a bit of work. What would you guys offer for it.

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post #2 of 17 Old 05-04-2009, 11:57 PM
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If the gear ratios match your front, worth a hundred or 2 (concidering it has a bad pinion brg), plus your time.
If he's asking 200, offer him 125, settle for 150.

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post #3 of 17 Old 05-05-2009, 12:14 AM
jeepheller98
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sounds like a good deal to me, i would kill for it

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post #4 of 17 Old 05-05-2009, 12:16 AM
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Quote:
Originally Posted by jeepheller98 View Post
sounds like a good deal to me, i would kill for it
You have a 44a.

I would go no higher than $200 probably, of course try to go lower.

Brian

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post #5 of 17 Old 05-05-2009, 12:17 AM
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once trussed with a skid plate the 44HD ( 44a ) is stronger than an iron 44 because it eliminates the week points

thicker ring gear.... thicker pinion shaft.... pinion shaft/spline count on a 44a is same as a D60... axle shaft size between d44a and d44 is the same

for less $$$$ than it would take to custom fit an iron 44...you can make the 44a stronger

Dana 60
Ring Gear Diameter = 9.750"
Pinion shaft Diameter = 1.626"
Ring Gear Bolt Count = 12
Pinion Spline = 29
Cover Bolt Count = 10

Dana 44 a
Ring Gear Diameter = 8.5"
Pinion Shaft Diameter = 1.625"
Ring Gear Bolt Count = 10
Pinion Spline = 29
Cover Bolt Count = 10

Dana 44 Iron
Ring Gear Diameter=8.500"
Pinion shaft Diameter=1.376"
Ring Gear Bolt Count=10
Pinion Spline=26
Cover Bolt Count=10



__________________________________________________ _____________________

i think it is worth it.......i have done the swap and i love it... i am very confident in my d44a

Matt


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post #6 of 17 Old 05-05-2009, 12:46 AM Thread Starter
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Is the pinion bearing hard or expensive to fix?
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post #7 of 17 Old 05-05-2009, 01:14 AM
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Quote:
Originally Posted by Fraser_Brown View Post
Is the pinion bearing hard or expensive to fix?
it aint hard, but it aint all that cheap if you use quality parts for inner and outer....

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post #8 of 17 Old 05-05-2009, 07:51 AM
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I would say it is hard...you need to remove the entire carrier to get to the pinion to replace the bearings. Pull the bearings off (via a bearing puller) and press a new set on (need a press for that).

'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package


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post #9 of 17 Old 05-05-2009, 08:26 AM
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I'd pass...there are plenty of 44a's laying around and you could probably even find another built one laying around. I'm looking for one with 4.10s or 4.56s and a locker to swap in and then sell my 44a to a buddy of mine... But then I HAVE to do something up front...HPD30 swap The problem is they are always ridiculously far away from me.

-Kyle

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RIP Troy (bigbluezj94)

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post #10 of 17 Old 05-05-2009, 10:01 AM
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I can't wait to get my d44a.

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post #11 of 17 Old 05-05-2009, 10:48 AM
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I've heard opinions on both sides and don't really know what I should do. In the long run I want to put an LSD in my D35. I see a classified on here where someone's selling a rebuilt D44a with a rebuilt trac-loc. But those are crap as far as I can tell and you can't replace them with a Detroit true-trac without a lot of work. This D44a has 4.10 gearing already though. They want $350 and are 5-6 hours away from me. I wonder if I could fit it in the back of my Jeep with the seats out...

I'd probably be best just waiting and getting the lift first, but you see these deals and wonder. If I stick to 31"-32" tires, would the 35 really be enough.

Now I want to regear. But will the 4.10 make enough difference to make it worth it over the 3.73 I have?

Don't mean to hijack your thread here, Fraser. You just voiced some similar questions I had.

I did forget to mention the D44 is from a V8 ZJ, no doubt. So I'm not sure whether that makes a difference.


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post #12 of 17 Old 05-05-2009, 11:25 AM
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Quote:
Originally Posted by aaron7 View Post
I can't wait to get my d44a.
Didn't all V8 ZJ's come with a 44a? I thought they did...

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post #13 of 17 Old 05-05-2009, 11:32 AM
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93-95 had the D35 in the back regardless of the engine.
96-98 had a D44a in the back if it was a V8.

'04 WJ, 6" Clayton LA's, 242 SYE, 35" BFG MT KM2's, 4.56 gears, & D44a locked
'14 WK2 Limited w/5.7L, ORAI, & Tow Package


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post #14 of 17 Old 05-05-2009, 11:39 AM
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Quote:
Originally Posted by SnowLeopard View Post
I've heard opinions on both sides and don't really know what I should do. In the long run I want to put an LSD in my D35. I see a classified on here where someone's selling a rebuilt D44a with a rebuilt trac-loc. But those are crap as far as I can tell and you can't replace them with a Detroit true-trac without a lot of work. This D44a has 4.10 gearing already though. They want $350 and are 5-6 hours away from me. I wonder if I could fit it in the back of my Jeep with the seats out...
yes i have fit 2 axles at the same time plus tools in the back of my ZJ with the back seats folded down

Quote:
Originally Posted by SnowLeopard View Post
I'd probably be best just waiting and getting the lift first, but you see these deals and wonder. If I stick to 31"-32" tires, would the 35 really be enough.

Now I want to regear. But will the 4.10 make enough difference to make it worth it over the 3.73 I have?
With 31" tires... 3.73s are just fine...with 31"-32" tires , 4.10 will be better but it isnt a huge difference.... you can however find an HP30 with 4.10s already in it to swap into the front...saving you money and giving you better axles

Quote:
Originally Posted by SnowLeopard View Post
Don't mean to hijack your thread here, Fraser. You just voiced some similar questions I had.

I did forget to mention the D44 is from a V8 ZJ, no doubt. So I'm not sure whether that makes a difference.
arlo already answered this one

Matt


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post #15 of 17 Old 05-05-2009, 11:54 AM
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I just know how bad acceleration is going up hills and mountains right now. I don't want to lose that much power. If I'm looking at 10% or more loss, then I might have no choice but to regear before I go up in tire size. I think I'll just go with the lift first though. Then tires next, when my 29's wear out. Then go from there. Either I go into major debt on a credit card to do it all at once, or I just do it one phase every 6 months or so. :P

I want 4.10 now though. I just don't see how changing an axle isn't a major undertaking.


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