3 speed stack vs doubler vs range box

paradisePWoffrd said:
Technically 203/205 setup is a 3spd, 1:1, 2:1, 4:1. Just different ratio options vs a 3spd stak/hero.



This would be my option, and likely the cheapest. stock 205 alone and gear the axles. If you are breaking R&P, you likely arent going to want to throw a cheap used set of gears back in the axle.
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I would need to clock the 205 up a couple inches if I run it alone. The range box or doubler will allow me to clock it up some.

Also, I would need to run my np435 4 speed to keep it drivers drop.
It’s about $400 more expensive to swap in a 435 than a 465 behind a 5.3.
 
Are you set on using a manual transmission? It seems like most people prefer an auto for the type of wheeling we all do.
 
drkelly said:
Are you set on using a manual transmission? It seems like most people prefer an auto for the type of wheeling we all do.
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I’m gonna be a little fuller headed on the manual. I’ve never wheeled an auto before though. I’m sure it’s better, but I’m hard headed and love my manual now.
 
I run a 203/205 now in my xj. I'm looking to go to the NWF black box some day. Is the 203 2.0:1 or more like the 205 and closer to 1.96:1? What I have found is that 1.96 is almost low enough for most of my wheeling but not low enough at times. Then when I go to 3.92:1 its too low. I'd really like to have the 2.72 option in my jeep.
 
For those wondering what all the lengths of these are I researched these for my k5. Bellhousing to center of the rear output yoke are the measurements I’ve compiled through finding the lengths of everything. I used ORDs doubler, there may be a shorter 203/205 doubler which if you wanted to do the math for that specific one I’ve got the bellhousing, SM465, and the adapter measurements from short 32, long 32 or 10 spline 205 or 203 adapters. I’d say plus or minus 1/16” maybe an 1/8” if you used all paper baskets between everything.

sm465 with short 32 spline output, ORD adapter, integrated black box and 205 is 39 3/4” long

Sm465 short 32 spline output shorty strong box/205 is 40 1/8”

Sm465 with short 32 spline output and 203/205 doubler is 43 3/8”

Sm465 with 10 spline input to 203/205 doubler is 44 1/8”
 
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iwaxmyjimmy said:
For those wondering what all the lengths of these are I researched these for my k5. Bellhousing to center of the rear output yoke are the measurements I’ve compiled through finding the lengths of everything off ORDs doubler there may be a shorter 203/205 doubler which if you wanted to do the math for that specific one I’ve got the bellhousing, SM465, and the adapter measurements from short 32, long 32 or 10 spline 205 or 203 adapters. I’d say plus or minus 1/16” maybe an 1/8” if you used all paper baskets between everything.

sm465 with short 32 spline output, ORD adapter, integrated black box and 205 is 39 3/4” long

Sm465 short 32 spline output shorty strong box/205 is 40 1/8”

Sm465 with short 32 spline output and 203/205 doubler is 43 3/8”

Sm465 with 10 spline input to 203/205 doubler is 44 1/8”
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Thanks for the info man. That helps. Good info.
 
Van-go said:
I would need to clock the 205 up a couple inches if I run it alone. The range box or doubler will allow me to clock it up some.

Also, I would need to run my np435 4 speed to keep it drivers drop.
It’s about $400 more expensive to swap in a 435 than a 465 behind a 5.3.
Click to expand...

You can run a driver drop case behind a 465. It was even a factory option for a few years.

Ford 205 will need a gm long input and redrill the pattern, and notch the adapter flange. Swap the tail housing with a gm and the speedo will thread right on.
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Trail Tech Fab also makes an adapter you weld yourself, to get the right positions: SM465 to Ford NP 205.
 
The doubler on my Dodge is a Dodge 203 to Ford 205. I get the right spline count for the transmission and then the Ford dumps it to the driver. You could do the same with a 465/ correct 203/ ford 205. Just let ORD know what you are using and they will hook you up.
 
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