bw 1356 doubler - Pirate4x4.Com : 4x4 and Off-Road Forum

whiterunner27 · 07-20-2012, 10:09 PM

I like the bw t-case because they are tough as shit and under rated, so i've done some research regarding the doubler options. Behemoth Drive train is looking pretty good considering not alot of people do a kit like this. Has anybody used one of these units and how well has it held up?

FordX4-offroad · 07-21-2012, 10:09 AM

There's a few threads on here regarding the behemoth doubler. Ppl say it blows as far as material used and it's not very well thought out. IMO.

On the other hand. Check out Duffy's new box4rocks that uses the planetarys from various cases. Pretty sweet Idea.

Sent from my Droid

jgalvin44102 · 07-21-2012, 08:44 PM

I have had one of the Behemoth Drivetrain kits in my Bronco for about 7 months now, it works great! He has done a redesign and is using a new case now instead of the hack and wack versions.

Jim

Rockcrawler_101 · 07-22-2012, 06:22 PM

If you got the room length wise you can just cut the side of bw and build an adaptor. I did this almost 7 ago. Never had any issues. Got a 351 with 44 tires

whiterunner27 · 07-22-2012, 11:11 PM

Quote:

Originally Posted by Rockcrawler_101

If you got the room length wise you can just cut the side of bw and build an adaptor. I did this almost 7 ago. Never had any issues. Got a 351 with 44 tires

input and output compatible?

FordX4-offroad · 07-23-2012, 07:11 AM

Quote:

Originally Posted by whiterunner27

input and output compatible?

the input on the 1356 is 31 spline.
the output is also 31 spline on the slip yoke 1356
it will be very long, but you can make an adapter and just slide the two together without a new shaft.

not sure if thats what you were asking.

Jrod-13 · 07-23-2012, 07:15 AM

Quote:

Originally Posted by Rockcrawler_101

If you got the room length wise you can just cut the side of bw and build an adaptor. I did this almost 7 ago. Never had any issues. Got a 351 with 44 tires

Yours was the inspiration for mine.. Ive got a good 6 years on mine..

FordX4-offroad · 07-23-2012, 08:04 AM

jrod and rockcrawler, how long is your front shaft? estimate.

whiterunner27 · 07-23-2012, 08:12 AM

Quote:

Originally Posted by Rockcrawler_101

If you got the room length wise you can just cut the side of bw and build an adaptor. I did this almost 7 ago. Never had any issues. Got a 351 with 44 tires

Got any photos?

Rockcrawler_101 · 07-23-2012, 09:14 PM

here are two links to the build
http://www.broncoii4x4.com/forum/vie...w+1356+doubler
http://www.pirate4x4.com/forum/showt...doubler&page=2

The front drive shaft is around 65 inches but i also pushed my front axle forward. The rear is only 17 and my wheel base it 117 if i remember correct.
here is a pic of the rig now. Used to be a bronco II

whiterunner27 · 07-23-2012, 10:32 PM

just read the build on the bii forum, Im doin what you did. I'll post pics when I get the time to build i, thanks for the info.

Rockcrawler_101 · 07-23-2012, 11:50 PM

Just make sure to cut outside the ribbing on the t case to make for more surface area for it to seal up. I redid that sense mine leaked before. After doing that i have never had a leak.

Daviticus · 07-25-2012, 01:14 PM

Hmmm ... this has got me thinking now ... there are a couple electric-shift 1356s I can get my hands on ... maybe I could try my hand at building an electric doubler haha.

Thanks for the info on this, I would never have thought to stack a pair of 1356s.

Jrod-13 · 07-25-2012, 08:04 PM

Quote:

Originally Posted by FordX4-offroad

jrod and rockcrawler, how long is your front shaft? estimate.

as a long box pickup, both front and rear were 47 3/4"
After i shortened it, and linked it, and put in 1 tons.. I'm not sure

07-20-2012, 10:09 PM	#1 (permalink)
whiterunner27 trial and error Join Date: Jan 2008 Member # 107096 Location: ft. lewis, wa Posts: 317	bw 1356 doubler I like the bw t-case because they are tough as shit and under rated, so i've done some research regarding the doubler options. Behemoth Drive train is looking pretty good considering not alot of people do a kit like this. Has anybody used one of these units and how well has it held up? __________________ cowboy up "life's alot tougher when your stupid" - John Wayne 1988 Ford F-250 Diesel, front hp kp 60 w/ 4.56 and detroit, rear sterling 10.25 w/ 4.56 and detroit, bastardized suspension, 12k smitty, cm ss flat bed, 38" ssr's http://www.pirate4x4.com/forum/ford/...bler-tech.html Last edited by whiterunner27; 07-20-2012 at 10:10 PM.

07-21-2012, 10:09 AM	#2 (permalink)
FordX4-offroad party wagon Join Date: Nov 2011 Member # 202878 Location: jojah Posts: 2,225	There's a few threads on here regarding the behemoth doubler. Ppl say it blows as far as material used and it's not very well thought out. IMO. On the other hand. Check out Duffy's new box4rocks that uses the planetarys from various cases. Pretty sweet Idea. Sent from my Droid __________________ jeep is getting a new home! NEW PROJECT ON THE HORIZON!!! E-350 12 valve cummins, 2006 F350 axles, 6" lift and 37's ...

07-22-2012, 06:22 PM	#4 (permalink)
Rockcrawler_101 Registered User Join Date: May 2002 Member # 11955 Location: San Juan Bautista, CA Posts: 926	If you got the room length wise you can just cut the side of bw and build an adaptor. I did this almost 7 ago. Never had any issues. Got a 351 with 44 tires __________________ 48 willys pickup on 1 tons, 5.8L and 44's. 01 ford superduty 4x4 6 speed.

07-23-2012, 08:04 AM	#8 (permalink)
FordX4-offroad party wagon Join Date: Nov 2011 Member # 202878 Location: jojah Posts: 2,225	jrod and rockcrawler, how long is your front shaft? estimate. __________________ jeep is getting a new home! NEW PROJECT ON THE HORIZON!!! E-350 12 valve cummins, 2006 F350 axles, 6" lift and 37's ...

07-23-2012, 09:14 PM	#10 (permalink)
Rockcrawler_101 Registered User Join Date: May 2002 Member # 11955 Location: San Juan Bautista, CA Posts: 926	here are two links to the build http://www.broncoii4x4.com/forum/vie...w+1356+doubler http://www.pirate4x4.com/forum/showt...doubler&page=2 The front drive shaft is around 65 inches but i also pushed my front axle forward. The rear is only 17 and my wheel base it 117 if i remember correct. here is a pic of the rig now. Used to be a bronco II __________________ 48 willys pickup on 1 tons, 5.8L and 44's. 01 ford superduty 4x4 6 speed.

07-21-2012, 08:44 PM	#3 (permalink)
jgalvin44102 Registered User Join Date: Dec 2010 Member # 177804 Posts: 54	I have had one of the Behemoth Drivetrain kits in my Bronco for about 7 months now, it works great! He has done a redesign and is using a new case now instead of the hack and wack versions. Jim

07-23-2012, 10:32 PM	#11 (permalink)
whiterunner27 trial and error Join Date: Jan 2008 Member # 107096 Location: ft. lewis, wa Posts: 317	just read the build on the bii forum, Im doin what you did. I'll post pics when I get the time to build i, thanks for the info. __________________ cowboy up "life's alot tougher when your stupid" - John Wayne 1988 Ford F-250 Diesel, front hp kp 60 w/ 4.56 and detroit, rear sterling 10.25 w/ 4.56 and detroit, bastardized suspension, 12k smitty, cm ss flat bed, 38" ssr's http://www.pirate4x4.com/forum/ford/...bler-tech.html Last edited by whiterunner27; 07-23-2012 at 10:32 PM.

07-23-2012, 11:50 PM	#12 (permalink)
Rockcrawler_101 Registered User Join Date: May 2002 Member # 11955 Location: San Juan Bautista, CA Posts: 926	Just make sure to cut outside the ribbing on the t case to make for more surface area for it to seal up. I redid that sense mine leaked before. After doing that i have never had a leak. __________________ 48 willys pickup on 1 tons, 5.8L and 44's. 01 ford superduty 4x4 6 speed.

07-25-2012, 01:14 PM	#13 (permalink)
Daviticus Registered User Join Date: Jan 2010 Member # 150796 Location: Orem, UT Posts: 57	Hmmm ... this has got me thinking now ... there are a couple electric-shift 1356s I can get my hands on ... maybe I could try my hand at building an electric doubler haha. Thanks for the info on this, I would never have thought to stack a pair of 1356s. __________________ '92 F150 XLT XCSB - 5.0 M5R2, 31"s - Stock w/nickel-n-dime junkyard upgrades.

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