who all has a d300 in there bigger than a cj rig?

[malodin]

nice

[big_o_tom]

Dana 300

Don't know a lot about these full size Jeep's, but I got one. It's a '66 J-2000. When I bought it, it had an inline 6 cyl, a 3 or 4 speed manual tranny and a dana 20. Now it has a 304 with a turbo 400 tranny and a dana 20 x-case. Had it going on 15 years now and haven't had any x-case problems. Hauled my boat with it, done some wheeling with it, and hauled some insane amounts of building supplies in it. And the dana 20 is or should be weaker than the 300.

[Big Blue]

I recently installed a 203/d300 in my Cherokee. So far its held up to a bunch of snow wheeling and some mild trails. We'll see how it does this summer when take the jeep out on some more difficult trails including a trip to Moab. The dana 300 has no mods done to it as of now except for twin sticks.

Colin

[skinnypeadelwheelin]

ok cherokee owners i have a dana 300 sitting in the floor looking at my cherokee right now. havn't put it in cause people told me that the rear drive shaft wont clear the gas tank. will yall please end that myth and tell me it clears fine. so i can go ahead and put that tranny and dana 300 in it thanks.

[dusty]

ok cherokee owners i have a dana 300 sitting in the floor looking at my cherokee right now. havn't put it in cause people told me that the rear drive shaft wont clear the gas tank. will yall please end that myth and tell me it clears fine. so i can go ahead and put that tranny and dana 300 in it thanks.

i have a manual tranny with the offset rear end i have no problem clearing my stock coffin tank


I officially have broken a d300
in my cj the tera blow gears 4:1 3 gear set stripped the low range idler and a busted tooth spun around and cracked the top of the case right by the rear tail housing bolt, running stock outputs all logic tells oyu other parts should have broken but appearantly tera's gears are not as good as one would have hoped. i know i am not very impressed i kept the stock outputs just to give my self a fuse.

This go around it will have the full jb conversions package. i'll get back to you on if the gears strip and the case breaks but i seriously doubt it. otherwise the case in my cherokee chief is happily tooing along with the 32 spline output on the back


Casting number on the gear set middle idler gear is 300-341





Note on the Tera gear set they re-used the stock dana big gears on the low range side on the rear output and the front output. the totally stripped out gear is the dana spicer gear.

o suprise suprise
when the gear stripped the dislodged tooth cracked the top of the housing ..... time to grab the spare housing and put it to work

sucks when all your goodies get burned up

Tera 3 piece gear set center idler gear


This is not condusive of the D300 it is my suspision that this is a factor of a poor quality gear set. the case was just the unfortunate victim of circumstance. 35's and a t18 running 1310 ujoints and d44's f&R w/ stock outputs lots of fusable links that should have popped before this gear set did



The lomax gears are twice what the tera gears are otherwise i see no problems with stock gears

[fubar]

ive got one in my cherokee on 40's and a built 360 th400 and ive broke three u joints so far

[AKAMC]

How is this working out for you? I may be doing this in an 85 with a 727 and CUCV D60 passenger drop front. The front axle will be SOA so I hope I wont have a tranny pan issue.

i just put one in my grand wag, haven't driven it yet, but i was afraid of front drive shaft hitting the tranny(727). i put a front driveshaft up to it and it looks like it will clear the pan. Granted I do have a SOA in the front. I might have to limit up travel on the pssgr side we'll see...also I will have to re-route my exhaust because right now it's in the way. Best part though, it bolts directly up to the stock adapter.

[incommando]

I have a chance to pickup a AMC-cased TH400 with an adapter & a D300. Does anyone have any comments about how this would work out in a FSJ? Any known fitment issues?

[Sambo]

should bolt right in if its an amc t400

[incommando]

Much advantage over a 727/208? I have both front axles available.

[Casey]

I don't think there is an advantage over the 727/208 (yeah the 300 is gear driven and cast iron w/huge after market).
The 208 is plenty strong and there are no driveshaft issues to deal with. Everything to do the swap to a 208 is readily available using factory parts. Cross member, driveshafts, shifter etc...
I did a 208 swap and only had to get one driveshaft made. The whole swap cost me less than $150. D300s can fetch more than that.
But they do bolt right to the 727 eliminating the need for adapters etc... keeping the cost down. A big bonus for using one if you need to swap out your t-c.

I have done the 300 swap with a 727. I never drove the thing tho'. I just installed it and then went in an entirely different direction.(454/700r4/203/205)


Bolted to a 727 the D300 front yoke is very close to the trans pan. Like several here pointed out, a thin driveshaft with a single u-joint is the ticket. A dbl cardan joint will not work.

Here it is with a Currie twin stick installed in the Chief:



pic of the trans/t-c bolted together. You can see how close the yoke is to the pan:

[incommando]

Thansk. Good info. I have the 727/208. I guess there is no reason to buy the th400/300.

[matt thompson]

How is this working out for you? I may be doing this in an 85 with a 727 and CUCV D60 passenger drop front. The front axle will be SOA so I hope I wont have a tranny pan issue.

It is definately close, i don't think a double cardon cv shaft would work. For the front I dont think cv shaft is needed though IMHO. Yes is clears the tranny with a skinny driveshaft like mine. I found my shaft from a scout with an auto, perfect length and skinny. Only thing that needs to be done is re route exhaust.

[PavementPounder]

As someone mentioned earlier, the 1980 Scout units are nice alternatives for FSJ owners with T-18's. I hooked up Jersey Joe with one a while back. Finding the bull gear can sometimes be a pain in the ***, though.

[JERSEY JOE]

TEXAS BOLT PATTERN DANA 300

THAT'S RIGHT. PAVEMENT POUNDER DID HOOK ME UP WITH A RARE TEXAS BOLT PATTERN DANA 300 FOR MY T-18 IN A CJ 7. WAS A GOOD UNIT THAT HAS WORKED VERY WELL.

FOR WHAT IT'S WORTH MARK IS A STAND UP GUY THAT I WOULD VOUCH FOR ANYTIME.


JERSEY JOE