Best trasfercase for mudding.. - The 1947 - Present Chevrolet & GMC Truck Message Board Network

spudz · 09-11-2008, 02:45 PM

I am taking all my left over 73-87 chevy truck parts and building a mud truck... What is the best trasfercase and gear ratio for a 35-38in tall tire shortbed. I wont be rock climbing or nothing just all out bogging.. I assume I wont need a doubler or anything.. Its a major budget build using nothing buy useless leftover parts so I want to spend my money wisley... thanks!!!!

*FormerMember* · 09-11-2008, 03:17 PM

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spudz · 09-11-2008, 03:41 PM

I just want it to be reliable... As I am going to high reving and beating the **** out of it.. Trans is going to be a 400th I have now...it has a 203 behind it but i hear they are crap..

Burt4x4 · 09-11-2008, 03:41 PM

I'll toss in a vote for the NP205 also, it is an all gear box, unlike the NP203 that has a chain.

Dooley · 09-11-2008, 04:26 PM

The 205 is first choice, lighter than the 203 and gear driven. Harder to find with the T400 input shaft. The 203 is very heavy and is a tough unit for chain drive. Part way through the 78 model year they were given different chain and gear pitch for less probability of slippage after wear and abuse. The 1979 203's were best of them. The original BEARFOOT used a 203.

*FormerMember* · 09-11-2008, 04:28 PM

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tallhoedude · 09-12-2008, 09:46 AM

my reccomendations:
an np200,gear drive just like the 205,but has dropped outputs for better driveline angles.however has straight cut gears and makes a little more noises and heat on highway runs.
or "the beast" like im running. a t-136 rockwell ,both can be found for cheep,mine was less than $200.00!
however......the t-136 weighs about 400 POUNDS!
i have seen them taking a severe beating with 750hp and 60" tall tires and never break!!the t136 will get you about 12" of driveline drop and does have helical cut gears,so its more roadworthy.
but then again,im building a 10k pound k5,so my views may be a little distorted from the average mudder!!

spudz · 09-13-2008, 01:39 AM

what did the np200 or the rockwell come in???? straight cut gears are fine... truck will never be road worthy.

*FormerMember* · 09-13-2008, 08:01 AM

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tallhoedude · 09-15-2008, 07:06 AM

correct on the np200's.
the rockwells came in the 2.5 ton military 6x6's.

09-11-2008, 02:45 PM	#1
spudz Registered User Join Date: Oct 2005 Location: Branchville SC Posts: 1,647	Best trasfercase for mudding.. I am taking all my left over 73-87 chevy truck parts and building a mud truck... What is the best trasfercase and gear ratio for a 35-38in tall tire shortbed. I wont be rock climbing or nothing just all out bogging.. I assume I wont need a doubler or anything.. Its a major budget build using nothing buy useless leftover parts so I want to spend my money wisley... thanks!!!! __________________ 2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks.. Last edited by spudz; 09-11-2008 at 02:45 PM.

09-11-2008, 03:17 PM	#2
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Best trasfercase for mudding.. ... Last edited by FormerMember; 04-02-2009 at 03:55 PM.

09-11-2008, 03:41 PM	#3
spudz Registered User Join Date: Oct 2005 Location: Branchville SC Posts: 1,647	Re: Best trasfercase for mudding.. I just want it to be reliable... As I am going to high reving and beating the **** out of it.. Trans is going to be a 400th I have now...it has a 203 behind it but i hear they are crap.. __________________ 2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks..

09-11-2008, 03:41 PM	#4
Burt4x4 Registered User Join Date: Feb 2000 Location: Modesto, CA Posts: 1,842	Re: Best trasfercase for mudding.. I'll toss in a vote for the NP205 also, it is an all gear box, unlike the NP203 that has a chain. __________________ 1972 K5 MPFI454/Sm465/Np205/D60/14FFd/Re-Centerd H1s w/Swamper Iroks

09-11-2008, 04:26 PM	#5
Dooley Registered User Join Date: Mar 2005 Location: North Coast Posts: 1,012	Re: Best trasfercase for mudding.. The 205 is first choice, lighter than the 203 and gear driven. Harder to find with the T400 input shaft. The 203 is very heavy and is a tough unit for chain drive. Part way through the 78 model year they were given different chain and gear pitch for less probability of slippage after wear and abuse. The 1979 203's were best of them. The original BEARFOOT used a 203. Last edited by Dooley; 12-02-2008 at 06:59 PM.

09-11-2008, 04:28 PM	#6
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Best trasfercase for mudding.. ... Last edited by FormerMember; 04-02-2009 at 03:55 PM.

09-12-2008, 09:46 AM	#7
tallhoedude ROCKWELL 5 TON CLUB !! Join Date: Oct 2006 Location: indiana Posts: 516	Re: Best trasfercase for mudding.. my reccomendations: an np200,gear drive just like the 205,but has dropped outputs for better driveline angles.however has straight cut gears and makes a little more noises and heat on highway runs. or "the beast" like im running. a t-136 rockwell ,both can be found for cheep,mine was less than $200.00! however......the t-136 weighs about 400 POUNDS! i have seen them taking a severe beating with 750hp and 60" tall tires and never break!!the t136 will get you about 12" of driveline drop and does have helical cut gears,so its more roadworthy. but then again,im building a 10k pound k5,so my views may be a little distorted from the average mudder!! __________________ 1970 K5 "ON THE ROCKS" PROJECT:500hp 6.0 fuel injected. 2wd sm465 trans,t136 2.5 ton transfercase,5ton rockwells with 9.34 gears,custom wheel disc brakes,full hydro steering20+" OF LIFT AND 67/35/25's..67" tall TRACTOR TIRES.."THE MUD SLUT!!" MY BUILD THREAD: http://67-72chevytrucks.com/vboard/s...d.php?t=221935 1997 TAHOE,SAS D60 14B,5:13 DISC BRAKES,CROSSOVER STEER,HYDRO ASSIST,42 IROKS HINT:NEW NAME "K5ontheROCKS!"

09-13-2008, 01:39 AM	#8
spudz Registered User Join Date: Oct 2005 Location: Branchville SC Posts: 1,647	Re: Best trasfercase for mudding.. what did the np200 or the rockwell come in???? straight cut gears are fine... truck will never be road worthy. __________________ 2004 z71, 96 z71 on 38s, 88 Chevy k5 blazer, 4in lift. 84 swb project, 82 SWB project , 84 chevy 4x4 lwb project, 88 Jimmy beater/highschool ride. 79 c30. 99 tahoe 4x4 project. and a bunch of parts trucks..

09-13-2008, 08:01 AM	#9
FormerMember Account Suspended Join Date: Feb 2004 Posts: 3,051	Re: Best trasfercase for mudding.. ... Last edited by FormerMember; 04-02-2009 at 03:55 PM.

09-15-2008, 07:06 AM	#10
tallhoedude ROCKWELL 5 TON CLUB !! Join Date: Oct 2006 Location: indiana Posts: 516	Re: Best trasfercase for mudding.. correct on the np200's. the rockwells came in the 2.5 ton military 6x6's. __________________ 1970 K5 "ON THE ROCKS" PROJECT:500hp 6.0 fuel injected. 2wd sm465 trans,t136 2.5 ton transfercase,5ton rockwells with 9.34 gears,custom wheel disc brakes,full hydro steering20+" OF LIFT AND 67/35/25's..67" tall TRACTOR TIRES.."THE MUD SLUT!!" MY BUILD THREAD: http://67-72chevytrucks.com/vboard/s...d.php?t=221935 1997 TAHOE,SAS D60 14B,5:13 DISC BRAKES,CROSSOVER STEER,HYDRO ASSIST,42 IROKS HINT:NEW NAME "K5ontheROCKS!"



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