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starting my 205/205 doubler build

twoslo4five0

twoslo4five0

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of so ive decided to go with a 205 205 doubler.i have the cases (one comeing from wayne the other clarkjw24) and here is my plans.i opted to go 205 205 seeing as how cheap,strong and plentyful the parts are.im starting this thread to see anything i may have over looked when drawing this out on a piece of paper.so here is how it works

465 bolted to a 208 round 6 adapter bolted to a index ring (not sure if ill need that but i have it) bolted to a round 6 (yes i got one courstey of wayne) np205 cut in half.the halfed 205 will have a slip yoke rear.

then a 1 inch (length)tube jackshaft (my driveshaft shop told me that they can make it that small) with 1350s (shaft out of a cucv) feeding a divorsed dodge np205 with everthing 32 spline (all divorsed cases are).

my plan is to try to get both front and rear shafts preety equall in length to carry one spare.i run 1410s front and rear now so they will remain.my rear shaft now will have to be cut down and my front will be made via square tube.my belly pan will prolly have to be notched up to clear the front driveshaft.

as of now i have a LONG rear driveshaft so that really isnt to big of a concern of mine.im at 120 inch wheelbase.the only thing im not likeing is the weight but for the price i can live with it.hopefully when its all said and done ill have 500 bucks or less in this doubler and if i dont like it can get rid of it.

anything else im missing that might now make this happen?
 
twoslo4five0 said:
of so ive decided to go with a 205 205 doubler.i have the cases (one comeing from wayne the other clarkjw24) and here is my plans.i opted to go 205 205 seeing as how cheap,strong and plentyful the parts are.im starting this thread to see anything i may have over looked when drawing this out on a piece of paper.so here is how it works

465 bolted to a 208 round 6 adapter bolted to a index ring (not sure if ill need that but i have it) bolted to a round 6 (yes i got one courstey of wayne) np205 cut in half.the halfed 205 will have a slip yoke rear.

then a 1 inch (length)tube jackshaft (my driveshaft shop told me that they can make it that small) with 1350s (shaft out of a cucv) feeding a divorsed dodge np205 with everthing 32 spline (all divorsed cases are).

my plan is to try to get both front and rear shafts preety equall in length to carry one spare.i run 1410s front and rear now so they will remain.my rear shaft now will have to be cut down and my front will be made via square tube.my belly pan will prolly have to be notched up to clear the front driveshaft.

as of now i have a LONG rear driveshaft so that really isnt to big of a concern of mine.im at 120 inch wheelbase.the only thing im not likeing is the weight but for the price i can live with it.hopefully when its all said and done ill have 500 bucks or less in this doubler and if i dont like it can get rid of it.

anything else im missing that might now make this happen?
Click to expand...

First you said 465 and 208, I know it was a typo, unless your title was a typo and you are making a 208/205 doubler.
If it is the 208 I understand the half case, if it's the 205, why bother?
I want to do the same, and I already have the cases, the only concern I had was the connection between the cases, are you going to have Ujoints in the Jackshaft?
I was thinking of making an adapter to hold them married style and have a slip yoke flange bolted directly to the input on the div, but I was worried about the alignment and centering of that shaft.
Having Ujoints would be safer.
 
im using a 208 adapter not a 208.its 2 205s.the jackshaft will be a cucv slip yoke style, 1350 rear driveshaft cut down to a 1 inch tube (length) see what im saying now
 
twoslo4five0 said:
im using a 208 adapter not a 208.its 2 205s.the jackshaft will be a cucv slip yoke style, 1350 rear driveshaft cut down to a 1 inch tube (length) see what im saying now
Click to expand...

Yeah that's what I figured but I just wanted to make sure because either you weren't very clear or I need some coffee. :rolleyes:
 
I'll definitely be watching this, I want to do something similar.
 
sorry if its a dumb question but what wiil the finnal gearing be isnt the low range like 1 and some change still learning all this doubler stuff
 
np205 low range is 1.96:1, so a 205/205 will be right at 4:1...3.84:1 to be exact.

subscribed, deff take pics to show us, you said a 205 cut in 1/2...are you talking ''literally'' cut in 1/2?
 
blazin_blazer said:
np205 low range is 1.96:1, so a 205/205 will be right at 4:1...3.84:1 to be exact.

subscribed, deff take pics to show us, you said a 205 cut in 1/2...are you talking ''literally'' cut in 1/2?
Click to expand...

They cut the front output portion:
To clear the path for the front driveshaft from the rear tcase
To remove excess weight and offset weight.
Another way to do it is to use a chevy and a ford tcase, that way one is on each side not interference and weight is balanced. :D
 
blazin_blazer said:
np205 low range is 1.96:1, so a 205/205 will be right at 4:1...3.84:1 to be exact.

subscribed, deff take pics to show us, you said a 205 cut in 1/2...are you talking ''literally'' cut in 1/2?
Click to expand...
like this

attachment.php
 
I bet you could get away with smaller joints in the jack-shaft, being theres no angle involved. That way you probably make it shorter if you need to.
 
Why do you have to have a slip in between the two cases?
 
yeah i know that, but if im reading it right, sounds like your going to run the first case with a slip yoke. why wouldnt you a jackshaft with no slip? i dont get why there is a slip between the two cases.
 
protechk5 said:
yeah i know that, but if im reading it right, sounds like your going to run the first case with a slip yoke. why wouldnt you a jackshaft with no slip? i dont get why there is a slip between the two cases.
Click to expand...
cause i dont have to buy any parts like this.thats why
 
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