disclaimer, I'm bored off my gourd and off my rocker (actually, I'm missing both of them:flipoff2: )

Thinking about eventual powertrain set-ups for da Terra. I want to do Diesel for a few reasons.

Anyhow. Detroit Diesel 4-53TA/N.
and here's where i start wondering.
T-35/6 (7.5 and 6.32 lows) Approx.
divorced eft hand drop NP 205 (1.96)
Married right hand drop NP205 (1.96)
D-44's (3.54's) current, but I don't want to go any lower than 3.73's.

My math says that would give a 102:1 low with a quite a few choices from there.
I don't want to use a 203 doubler because of cost, though it would be simplest. Anyone know of any 205/205 combo's like that??

Any other problems??

A friend of mine had problems twisting driveshafts pushing 3.54's with a 4:1 transfer, and granny gear transmission. It puts all of your extra leverage before the driveshaft, kind of like using a 3 foot cheater bar on a ratchet with a 3/8 drive extension turning a 3/4" bolt. When in a bind something else gives before it turns.

I thought of that, I'm not sure how much of a problem it would be. with that motor, I can't go very low in the pumpkin or I'll loose all top speed, as is, 3.54's and 33's would give 59 mph, running flat out redline.

A 4-53t IS 1300LBS!

what about :
4-53T, backed by a fuller 5 spd, with a 3 spd"brownie" to a 205. :rolleyes:

odd, the 4-53TA/N that sat in the old man's F-350 weighed in at ~900, heavy but not unbearable.

Originally posted by The Mick
disclaimer, I'm bored off my gourd and off my rocker (actually, I'm missing both of them:flipoff2: )

Thinking about eventual powertrain set-ups for da Terra. I want to do Diesel for a few reasons.



Stick with a gasser, Matt!!

That said, if you MUST.. your easiest choice is probably a 6.2L Detroit. I even know where there's a 6.2L/Auto equipped Terra you could just buy...

A 6.9/7.3 would look much more at home though. :D


and here's where i start wondering.
T-35/6 (7.5 and 6.32 lows) Approx.


You're going to use the SAE setup on the T35/6 then?


divorced eft hand drop NP 205 (1.96)
Married right hand drop NP205 (1.96)
D-44's (3.54's) current, but I don't want to go any lower than 3.73's.


Where's the married right-drop NP205? Married to the left-drop NP205? Married to the T35? ( :laughing: )

I know of a couple NP203s for sale cheaply in Bozeman..


I don't want to use a 203 doubler because of cost, though it would be simplest. Anyone know of any 205/205 combo's like that??

Any other problems??

Are you running an auto or stick?

How about a 345 --> 727 --> Jeep Dana 300 (clocked up out of the way - figure this out before you finish putting the new floors in) with a divorced NP205 behind it.

You'll probably be able to swap the front DS to the rear, and the rear to the front, though you'll probably also need a carrier bearing on the front.

Simple, cheap, effective.

Insist on a 4spd? Lop off the front output of a Dana 20 and do the same.

Upgrade option would be Tera gears for the halved Dana 20.

Or.. get a truck like mine, and put a 5spd in, divorced 3spd brownie, and an NP205.

I think my brownie is only 1.2 / 1 / 0.8 or 0.7 ratios.. so I guess I won't be below 100:1 in the tow-rig.. dang. :D

Originally posted by tsm1mt



Lop off the front output of a Dana 20 and do the same.



PICS???:D

Often said, but seldom done

Originally posted by tsm1mt


Stick with a gasser, Matt!!

A 6.9/7.3 would look much more at home though. :D

The point of using the detroit is I can get my hands on a running lightwieght version for free, I can also get my hands on a 3-71 for free, a 3-53 for free, or a old Cat motor out of a D-3:D The Cat is too heavy, too little power, and i don't want to fuck with the pony motor. I'd have to pay money for a 6.9/7.3. Besides, Detroit's don't have an injector pump to go out.



You're going to use the SAE setup on the T35/6 then?

Yep.


Where's the married right-drop NP205? Married to the left-drop NP205?

Left drop.

I know of a couple NP203s for sale cheaply in Bozeman..

Hmmm.



Are you running an auto or stick?

is a stick and it's going to stay that way.

[quote]
Insist on a 4spd? Lop off the front output of a Dana 20 and do the same.

Upgrade option would be Tera gears for the halved Dana 20.[quote]

Got pics??

Put it in and you will like it. Just get after it and when your done I would love a ride.:smokin: :smokin:

yup, your bored.