LOST JEEPS :: View topic - D30-A replacement (Revisited)

there is something to be said for IFS in real world driving and ride quality for most situations. How about a real IFS in place of the crap they have hanging up front now?

I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay

Quote:

I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay

used d30 housing 100$
seals and bushing 150$
cutting and welding labor ?
new gears 250$
gear install 250$
diff swap 250$

still far from SFA money, what else am I missing

Quote:

I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay

used d30 housing 100$
seals and bushing 150$
cutting and welding labor ?
new gears 250$
gear install 250$
diff swap 250$

still far from SFA money, what else am I missing

More reserch is needed.

Im not talking about a SCORE truck here, but a rig that can handle the rough stuff on the weekends, and be able to be driven home to assume daily driver duties during the week.

Heres what Im thinking... Im not looking for a rock buggy so the 32" tires I could fit under a Libby is more than enough for me. Those axles are set up from the factory to handle tires of that size. I wouldnt be using the entire IFS set-up but the diff, axle tubes, (cv's?) I know there's lots of fab work to be done weather U fab brackets for the cradle or the axle itself. Not to knock the SFA guys, but if I wanted 35's under my truck, I would have bought a Wrangler. IMO I think it would be a viable option to replace a flawed and undesirable differential with something that will be a lot stronger and still retain a factory look. More reserch is needed.

Boblemoche wrote:

Quote:

I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay

used d30 housing 100$
seals and bushing 150$
cutting and welding labor ?
new gears 250$
gear install 250$
diff swap 250$

still far from SFA money, what else am I missing

Custom machining for axles seals and outer axle bearings--???$$$???
Axle bearing and axle seals--$100
Custom drivers side CV with longer stub shaft---???$$$???
Custom inner CV shaft for passenger side to fit in passenger CV--???$$$???
Front custom driveshaft--$450

Just to start,and again this option would be a option for the CRD guys.The machining and custom axle/CV parts will not be cheap(well into 4 figures at least).

tjkj2002 wrote:

Boblemoche wrote:

Quote:

I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay

used d30 housing 100$
seals and bushing 150$
cutting and welding labor ?
new gears 250$
gear install 250$
diff swap 250$

still far from SFA money, what else am I missing

why diffrent lenght cv's your cutting the whole diff anyway why not just cut it the right lenght to fit stock cv's

How about this...don't laugh too much... :lol:

Get about 1/2 gallon of JB Weld and encase the entire bottom of the D30a with it...heck...get a whole gallon and encase the whole thing up to the strengthening ribs while your at it.

John
];')

Author:	frank6772 [ Fri May 01, 2009 8:05 pm ]
Post subject:	D30-A replacement (Revisited)
Although an SFA has been proven doable (abit a little expensive) Id like to revisit replacing the D30a with another IFS. http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?t=26112&highlight=d30a+replacement There have been talk about cutting up a D30 or going the full size route (again more cutting) but nothing else. I started thinking about it and wondered what else would be feesable. So far Ive looked into an IFS out of a 95-01 Toyota Tacoma. Heres what Ive learned so far... Its a HP 7.5" IFS diff, width is about 59" from wheel mount to wheel mount, 4.10 gears are available. Its not only lockable but has aftermarket support for manual hubs. Lurking the Toyota forums, there really are no ill efects with damaged axles unless they tried to run 35's with the IFS. Im sure theres more to deal with (fitment, bolt patterns...) but more reserch is needed. I would like to get feedback from my fellow Libby owners. Comments...speculation....objections from the penut gallery?

Author:	tommudd [ Fri May 01, 2009 8:14 pm ]
Post subject:
Besides being lockable what are you gaining? Plus different bolt patterns, still only 4.10s and ...well several things. Still like to see a KJ and KK front diff and ALL mounting hardware side by side before using Yota parts , actually thats not even right Anything you do is going to cost almost as much as a SFA at this point Didn't think it was that time of the year already for this to come up again

Author:	tjkj2002 [ Fri May 01, 2009 8:17 pm ]
Post subject:
4.10's are available for the D30A also. You plan on fitting the whole toyota IFS on the KJ? If you are it will cost about as much as a SFA swap,not to mention the different bolt pattern rims needed up front.If not you will need custom brackets to hold it in there and custon CV's made since the OEM KJ ones will not work with the toyota diff. I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay,SFA swap comes to mind for that option also and the CRD's could not use that option since the pumpkin would need to be moved over to the passenger side more then it already is on the gasser KJ,then custom stub axles and CV's would be needed also.

Author:	CRD Joe [ Fri May 01, 2009 8:29 pm ]
Post subject:
there is something to be said for IFS in real world driving and ride quality for most situations. How about a real IFS in place of the crap they have hanging up front now?

Author:	tjkj2002 [ Fri May 01, 2009 8:31 pm ]
Post subject:
CRD Joe wrote: there is something to be said for IFS in real world driving and ride quality for most situations. How about a real IFS in place of the crap they have hanging up front now? Have you checked out how much those custom IFS setup run? Your looking at about $30,000 per axle.

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D30-A replacement (Revisited) http://www.lostjeeps.com/forum/phpBB3/viewtopic.php?f=3&t=42774	Page 1 of 2

Author:	Boblemoche [ Fri May 01, 2009 8:50 pm ]
Post subject:
Quote: I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay used d30 housing 100$ seals and bushing 150$ cutting and welding labor ? new gears 250$ gear install 250$ diff swap 250$ still far from SFA money, what else am I missing

Author:	tommudd [ Fri May 01, 2009 8:51 pm ]
Post subject:
Boblemoche wrote: Quote: I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay used d30 housing 100$ seals and bushing 150$ cutting and welding labor ? new gears 250$ gear install 250$ diff swap 250$ still far from SFA money, what else am I missing so hows the power getting from there to the wheels ? And although it sounds simple on paper........

Author:	tjkj2002 [ Fri May 01, 2009 8:55 pm ]
Post subject:
Boblemoche wrote: Quote: I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay used d30 housing 100$ seals and bushing 150$ cutting and welding labor ? new gears 250$ gear install 250$ diff swap 250$ still far from SFA money, what else am I missing Custom machining for axles seals and outer axle bearings--???$$$??? Axle bearing and axle seals--$100 Custom drivers side CV with longer stub shaft---???$$$??? Custom inner CV shaft for passenger side to fit in passenger CV--???$$$??? Front custom driveshaft--$450 Just to start,and again this option would be a option for the CRD guys.The machining and custom axle/CV parts will not be cheap(well into 4 figures at least).

Author:	frank6772 [ Fri May 01, 2009 8:56 pm ]
Post subject:
Im not talking about a SCORE truck here, but a rig that can handle the rough stuff on the weekends, and be able to be driven home to assume daily driver duties during the week. Heres what Im thinking... Im not looking for a rock buggy so the 32" tires I could fit under a Libby is more than enough for me. Those axles are set up from the factory to handle tires of that size. I wouldnt be using the entire IFS set-up but the diff, axle tubes, (cv's?) I know there's lots of fab work to be done weather U fab brackets for the cradle or the axle itself. Not to knock the SFA guys, but if I wanted 35's under my truck, I would have bought a Wrangler. IMO I think it would be a viable option to replace a flawed and undesirable differential with something that will be a lot stronger and still retain a factory look. More reserch is needed.

Author:	tommudd [ Fri May 01, 2009 8:58 pm ]
Post subject:
frank6772 wrote: More reserch is needed. until then we will stand by

Author:	tjkj2002 [ Fri May 01, 2009 9:00 pm ]
Post subject:
frank6772 wrote: Im not talking about a SCORE truck here, but a rig that can handle the rough stuff on the weekends, and be able to be driven home to assume daily driver duties during the week. Heres what Im thinking... Im not looking for a rock buggy so the 32" tires I could fit under a Libby is more than enough for me. Those axles are set up from the factory to handle tires of that size. I wouldnt be using the entire IFS set-up but the diff, axle tubes, (cv's?) I know there's lots of fab work to be done weather U fab brackets for the cradle or the axle itself. Not to knock the SFA guys, but if I wanted 35's under my truck, I would have bought a Wrangler. IMO I think it would be a viable option to replace a flawed and undesirable differential with something that will be a lot stronger and still retain a factory look. More reserch is needed. The toyota CV's will not work with the KJ's outer hub bearings,plus there lengths will be different.You will not get to retain the lockable outer hubs that way either,just saying.The toyota guys are blowing more front diffs then the KJ's have by a big margin,there alloy also and not ment for bigger tires.The FJ's are going front diffs like there's no tomorrow.

Author:	Pablo [ Fri May 01, 2009 9:29 pm ]
Post subject:
Before looking at yotas, you might want to consider the following: -- D30M (KK), lt takes standard Dana 30 gears (I think) and standard lockers. Is supposed to be stronger than the D30a. -- Dodge truck. Lots of gears and locker available. Who knows if it fits or how much work. Should be tough enough. -- Quadratrack out of a Jeep Grand Cherokee. This was done in the Liberator. But, I believe then you have no front locker (Liberator used Quadratrack all the way around). Of course they also moved the whole front forward and lots of other stuff, so this is not likely to be cheap.

Author:	InCommando [ Sat May 02, 2009 1:28 am ]
Post subject:
I wouldn't mind a viable IFS alternative at 1/3 the price of a SFA, but I would not be shopping an IFS with a tiny ring gear & a system that is commonly swapped to SFA for people pushing them hard. It sounds like a toy diff would be more of a step sideways than a leap ahead. Doesn't the Navigator use on 8.8" centersection or similar? NOW we are talking something that would be worthwhile.

Author:	Boblemoche [ Sat May 02, 2009 11:25 am ]
Post subject:
tjkj2002 wrote: Boblemoche wrote: Quote: I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay used d30 housing 100$ seals and bushing 150$ cutting and welding labor ? new gears 250$ gear install 250$ diff swap 250$ still far from SFA money, what else am I missing Custom machining for axles seals and outer axle bearings--???$$$??? Axle bearing and axle seals--$100 Custom drivers side CV with longer stub shaft---???$$$??? Custom inner CV shaft for passenger side to fit in passenger CV--???$$$??? Front custom driveshaft--$450 Just to start,and again this option would be a option for the CRD guys.The machining and custom axle/CV parts will not be cheap(well into 4 figures at least). why diffrent lenght cv's your cutting the whole diff anyway why not just cut it the right lenght to fit stock cv's

Author:	Dje Ryu [ Sat May 02, 2009 3:30 pm ]
Post subject:
Anyone ever looked under an AMC Eagle? Parked my KJ next to a lifted one the other day and crawled under both of them. D35 center section, I think. It's a cast steel housing; driver side drop; looks like it would fit well. Not sure how much work it would take to mount it, though.

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Author:	Kugellager [ Sat May 02, 2009 4:03 pm ]
Post subject:
How about this...don't laugh too much... Get about 1/2 gallon of JB Weld and encase the entire bottom of the D30a with it...heck...get a whole gallon and encase the whole thing up to the strengthening ribs while your at it. John ];')

Author:	djui5 [ Sat May 02, 2009 4:57 pm ]
Post subject:
If your doing all this cuz your worried about breaking the housing, why don't you just have someone fab up something like a cage for the housing? Similar to the Poison Spyder diff cover, but that wraps around to the back also would work just fine I think.

Author:	tommudd [ Sat May 02, 2009 7:01 pm ]
Post subject:
some .........interesting ideas ,,,,I guess but haven't heard one thing that is a step ahead , backwards and sideways but not ahead

Author:	tjkj2002 [ Sat May 02, 2009 8:44 pm ]
Post subject:
Boblemoche wrote: tjkj2002 wrote: Boblemoche wrote: Quote: I looked over cutting the regular D30 down and use,the cost would be more then what you'd want to pay used d30 housing 100$ seals and bushing 150$ cutting and welding labor ? new gears 250$ gear install 250$ diff swap 250$ still far from SFA money, what else am I missing Custom machining for axles seals and outer axle bearings--???$$$??? Axle bearing and axle seals--$100 Custom drivers side CV with longer stub shaft---???$$$??? Custom inner CV shaft for passenger side to fit in passenger CV--???$$$??? Front custom driveshaft--$450 Just to start,and again this option would be a option for the CRD guys.The machining and custom axle/CV parts will not be cheap(well into 4 figures at least). why diffrent lenght cv's your cutting the whole diff anyway why not just cut it the right lenght to fit stock cv's Then you'd be cutting most of the cast D30 pumpkin away leaving no room for the custom machining needed to fit a bearing and seal for the CV.The passenger side you can do this but not the drivers side,though a custom made inner axle shaft will be needed for the passenger side.

Author:	daspes [ Sat May 02, 2009 9:54 pm ]
Post subject:
Kugellager wrote: How about this...don't laugh too much... Get about 1/2 gallon of JB Weld and encase the entire bottom of the D30a with it...heck...get a whole gallon and encase the whole thing up to the strengthening ribs while your at it. John ];') I've actually thought about that...