Dana 300 Info? [Archive]

XEON

09-20-2005, 06:31 PM

Ok, I think I have my heart to flip a Dana 300 and twin stick it (Included in Flip Kit) also install 4-1 gears. Now, I need information on what year CJs and any other trucks I can pull the Dana 300 and what to stay away from? I want to pull it out of a yard or find it cheap. Let me know if you find any sites or informaion. Please post.

Thanks, please keep on topic :) :ontopic:

NYWheeler

09-20-2005, 07:20 PM

81-86 CJ would be your best bet. Probably the easiest to find. The 1980 had a shorter tailshaft and housing with a different bolt pattern on the tailshaft housing. Some company's don't offer parts for the 80 model. Pirate has quite a bit of info on the flip kits, just be prepared to go blind from all the posts that will show up.

XEON

09-20-2005, 07:23 PM

I went threw the thread with a home made Flip Kit. But I dont have access to a friggin CNC cutter and what not. I mean Daryl does but he cant do that stuff anymore :(.

XEON

09-20-2005, 10:13 PM

Ok found lots of info. Here are some links to help me and others.

Popping out of 4Lo:
http://www.jeepsunlimited.com/forums/showthread.php?t=343050

Flip Kit Info and to buy:
http://www.downeastoffroad.com/miva...ategory_Code=TC
http://www.downeastoffroad.com/dana300flipkit.htm

Flipped Dana 300 Info:
http://www.jeepsunlimited.com/forum...ad.php?t=671982

DD a Dana 300:
http://www.jeepsunlimited.com/forum...ad.php?t=649621

rokspydr

10-02-2005, 09:47 AM

you might be better off finding a used atlas. The price of the flip kit and the price of the 4-1(low max) 32spl rear output you are not far behind the atlas.

Marc
________
Crf450 (http://www.cyclechaos.com/wiki/Honda_CRF450)

XEON

10-02-2005, 11:45 AM

ROCKREADYXJ

10-02-2005, 10:18 PM

I really dont want to do an Atlas. Because its too easy. I dont need the HD output shaft. I dont have too much horse power under the V6. I got a quote for TeraFlex 4-1 gears, flip kit, and rebuild kit for $1300 to my door. Thats way less then an atlas and just a few hundred more then a teralow for np231. :D Plus I will sell my NP321 with HD SYe installed for a few hundred.

The tera 4low for the 231 is alot more reliable than the old clunky dana 300. the 300 does not have the strenght that an tlas has. There are alot of improve ments on the atlas that the 300 will never come close too. by the time you work out all the bugs out of the dana case you will have spent more money than tera 4low. The output on your 300 no matter which one you get will have to be upgraded those things break with stock motors and stock tires.

The tera has some big advantages over a 300 like it uses a plantetary system for gear reduction. alot stronger than those little straight cut gears in the 300. the gears in the tera are helical cut wich increases load capacity on the gear and less noise. it also has a better oiling system and the tolerences are tighter.

I would go with the tera never had one jump out of gear like a 300. I never had any complaints on one either.

But if you want to be different go find a rock trac out of a rubicon.

NYWheeler

10-02-2005, 11:25 PM

The tera has some big advantages over a 300 like it uses a plantetary system for gear reduction. alot stronger than those little straight cut gears in the 300. the gears in the tera are helical cut wich increases load capacity on the gear and less noise.

I don't know what the hell your talking about but the dana 300 has helical cut gears and so does the tera 4:1 for the dana 300. I have both the stock and the tera gears in my garage and neither of them are straight cut.

XEON

10-03-2005, 12:06 AM

I am not going to pay $2300 for an Atlas. For $1000 less I can have just about the same T-Case. Plus its 4" shorter then the T-Case I have now. The parts are easy to come by and they are cheaper. If I do break my output shaft, then I will upgrade. Tom has his stock one and if needed I can ask him nicly to borrow it until I get my HD one :D. This thread is NOT goign to turn into a what case has what gears horse crap. I dont give a crap. I have my mind set on the Dana 300 and everyone that has it loves it. Thanks :wtg:

rockdawg

10-03-2005, 09:27 AM

Plus its 4" shorter then the T-Case I have now
Thats a big advantage right there.
Although, if you were to come across a used atlas cheap......

XEON

10-03-2005, 11:27 AM

Thats a big advantage right there.
Although, if you were to come across a used atlas cheap......

Yea comming across an Atlas cheap is very hard. They get snatched up so fast. But yea, if I do come acros one cheap. I will grab it. Other then that, Dana 300 build :).

ROCKREADYXJ

10-03-2005, 12:22 PM

I don't know what the hell your talking about but the dana 300 has helical cut gears and so does the tera 4:1 for the dana 300. I have both the stock and the tera gears in my garage and neither of them are straight cut.

No tom you are right they are helical cut I was thinking of the sprags being reverse or under cut to hold the gears from jumping out. That is what my thought was to be about. But I was interupted and lost my train of thought. I re read it my self and saw what I wrote. Any how that is a big down fall to the 300 no one has made that correction yet. Except the atlas and np case have that style sprag incorperated into them already.

For a matter of four inches I would put in the JB stub shaft kit and sell your AA SYE you can gain anothe 3.75 inches. And since you are building a YJ with a V-6 push it foward a couple of inches and give your self a little better climbing ability and increase the length of your d-shaft.

Oh yeah I for got the Scout has a 300 in it and the gears are supost to be larger. Tera does make a 4:1 for it also.

sentinal02

10-03-2005, 01:44 PM

two problems with the scout 300 though. one, pretty hard to find. they were only produced for one year, 1980 and IIRC there were only about 40K scouts poroduced that year. the other problem is the bolt pattern. the scout uses the texas pattern vs the circle pattern of the NP/NV cases, which is the same as the jeep 300. if you're using an adaptor one way or another that might not be a problem, assuming the prices are the same, but if you're trying to avoid using an adaptor there then it will limit the trannies that you can use.

XEON

10-03-2005, 05:21 PM

I am really looking into a CJ 1981-1986 Dana 300. They have the non short output shaft which is stronger and can take my stock wrangler speedo gear and housing.

When tom gets his built and all the bugs out. I will basicaly duplicate but with the addition of a flip kit or if I can find a Dana 44 passenger side drop with same width of stock dana 30. We will be in business.

XEON

10-03-2005, 06:20 PM

Ok, I have a question.

When the Twin Stick Dana 300 is in 2WDH (normal highway setup) does the front axle still spin? Or is it like the YJ where the axle stops turning?
(I am keeping my axle disconnect for now)

Thanks!

sentinal02

10-03-2005, 06:22 PM

if I can find a Dana 44 passenger side drop with same width of stock dana 30. We will be in business.

if you don't mind a LP setup the mid to late 70's waggy's are PS drop, ~62" wide and disks. little bit wider than stock, but that's a good thing when going tall.

edit: forgot to mention, but the 6 lug pattern on the waggy can be converted to 5 on 5.5 if you'd like to have a more "common" pattern incase you need to borrow someone's sapre.

as far as the twin stick goes, with the front end in neutral whether or not the front spins will be determined by whether or not you have a front locker. if you do, then you'd need locking hubs to keep the DS from turning, even with the stock disco.

XEON

10-03-2005, 06:26 PM

Perfect, thanks Nick! I figured that and wanted to make sure. It will save me at the gas pump :).

ROCKREADYXJ

10-04-2005, 12:08 AM

if I can find a Dana 44 passenger side drop with same width of stock dana 30. We will be in business.

I have a waggy axle here(dana 44 diff on the right $100) about 1 inch wider on each side but that can vary on what out systems you run. I also have a rear Scout 44 complete 5 on 5.5 same width as the front if you put on 5 on 5.5 outers.