Author Topic: What are the pros and cons of dual transfer cases vs one ultimate? (Read 19840 times)

anomaly · « **on:** Mar 10, 2005, 07:32:01 PM »

Just as the title says. Whats everyones take?

Hyena · « **Reply #1 on:** Mar 10, 2005, 07:58:03 PM »

An dual transfercase has just 2 transfer cases. The dual ultimate has 2 transfer cases and a 4.7 gear in it. The ultimate crawls slower and is a lot lot better for wheeling. Now, dual transfer cases crawl slower then just a 4.7, or a 5.0(4.97?) so a dual transfer case is better for crawling then a 4.7 or 5.0.

NUb · « **Reply #2 on:** Mar 10, 2005, 10:42:12 PM »

with duals transfer cases you get 3 sets of gears to choose from
stock
stock low
double low

with just the 4.7 instaled you get
stock and
low low

I would recomment the duals because you just have more optins to choose from. its nice to be able to pop it in 2wd low and cruse around.

Jeff

LA_Fred · « **Reply #3 on:** Mar 10, 2005, 10:49:11 PM »

Dude,
go dual ultimate, you won't regret it. I love my Marlin Crawler!!!!

$Beer Chug\'n$

mr4x42u · « **Reply #4 on:** Mar 10, 2005, 11:08:17 PM »

with the single 4.7 case you have no driveline to shorten and lengthen and get the same results as duel cases..However your going to be running the higher gears like 3-4-5th alot because when you hit 4 low your basicly like double down..

With the duel cases you have more options..You have 4lo 2wd,,the you have normal 4low,,then double low with would be like the one case with 4.7 gear set in it..For most trails standard 4low is fine and needed to get around in because low low is just too low when the trails are steep and muddy...

One more bonus to having the duel cases is front driveline angle..the extra 6 inches you get from adding the crawler box really helps with the front driveline angle on lifted trucks because it makes it longer and takes some ot the angle out..

BigMike · « **Reply #5 on:** Mar 10, 2005, 11:38:40 PM »

The good thing about this comparison is even if you just started out with the Dual setup, you can always eaisly upgrade to the Ultimate by replacing the gear set in your rear transfercase.

The Cool thing about the Ultimate is you can run:

a single stock 2.28:1
a single 4.70:1
or the Ultimate 10.72:1

Where the 4.70:1 is nearly the same as just a Dual Transfercase (5.29:1).

Alot more options to choose from

and you will never go back after you've wheeled at 183:1 and above!!!

BigMike

guywithuglyyota · « **Reply #6 on:** Mar 10, 2005, 11:54:41 PM »

I second that, I went from completely stock to a duel ultimate setup- money well spent! I was annoying wraith to death at TDS playing with all the different gear combos! If there is not a gear suitable for the terrain, it does not exist! 4.7= a great upgrade, you will be shifting a bit more often from time to time duel= twice the options and extremely low low gearing. I could not help but giggle when I shiften the rear case to 4wd low and then the front ( attempted to pull Wraith off a rock, all four tires simply dug holes into the sand, with zero throttle input!) If money is a concearn you can always do the 4.7 single case, and add a case to the front when money allows for driveshafts and crossmember.

MidgetMike · « **Reply #7 on:** Mar 11, 2005, 01:53:49 AM »

Quote from: guywithuglyyota on Mar 10, 2005, 11:54:41 PM

I second that, I went from completely stock to a duel ultimate setup- money well spent! I was annoying wraith to death at TDS playing with all the different gear combos! If there is not a gear suitable for the terrain, it does not exist! 4.7= a great upgrade, you will be shifting a bit more often from time to time duel= twice the options and extremely low low gearing. I could not help but giggle when I shiften the rear case to 4wd low and then the front ( attempted to pull Wraith off a rock, all four tires simply dug holes into the sand, with zero throttle input!) If money is a concearn you can always do the 4.7 single case, and add a case to the front when money allows for driveshafts and crossmember.

A dual ulti. is like three t cases 4 high, stock 2 or 4 low, 4.7 2 or 4 low, or dual ulti 2 or 4 low with twin stick= the

mr4x42u · « **Reply #8 on:** Mar 11, 2005, 02:43:10 AM »

hell yea,,when In doubt,,double down 3rd gear and throttle out..I can pretty much get in or out of all kinds of trouble with that gearing...Its the perfect gear for FULLY GETTING IT!!

MidgetMike · « **Reply #9 on:** Mar 11, 2005, 09:31:45 AM »

Quote from: mr4x42u on Mar 11, 2005, 02:43:10 AM

hell yea,,when In doubt,,double down 3rd gear and throttle out..I can pretty much get in or out of all kinds of trouble with that gearing...Its the perfect gear for FULLY GETTING IT!!

What he said

anomaly · « **Reply #10 on:** Mar 11, 2005, 04:11:47 PM »

I ask because I know of a guy selling a W56 (mine is on it's way south) with dual stock cases, and driveshafts for 800. Wondering if I would rather do 33 Xterrains on black rock crawlers (I need tires as well, sadly) or do that and hold off on the tires.

MUDDONKEY · « **Reply #11 on:** Mar 13, 2005, 05:01:28 PM »

YOU GOTTA HAVE A WAY TO GET ALL OF THAT GEARING TO THE GROUND!!! SPINNING SLICKS IS USELESS!!

BigMike · « **Reply #12 on:** Mar 13, 2005, 05:47:38 PM »

I've never actually compared this in a real world test, but I might even go as far to say that a truck with an Ultimate with stock 28" tires is more capable than the same truck on 33" tires with stock gearing. The only advantage the 33" would give is ground clearance.

BigMike

Thumper · « **Reply #13 on:** Mar 13, 2005, 07:18:23 PM »

I would do the duel case and tranny because thats a heck of a deal!
Thats what im running and i love it and if you go with the tires and ur tranny goes down then u are stuck vs buying the tranny and duels and then u can always find tires, there everywhere.
Good luck
adam

mudguts · « **Reply #14 on:** Mar 13, 2005, 07:24:25 PM »

I have the dual ultimate and there is no cons

Hyena · « **Reply #15 on:** Mar 13, 2005, 08:22:26 PM »

I have just duals and i don't think it is slow enough. I will hopefull be putting a call in to marlin in the next month or so for a 4.7 gearset.

Yota4life · « **Reply #16 on:** Mar 13, 2005, 08:46:08 PM »

When you have stock and Low its pretty low, then when you have low low its really low( 223:1) Its nice to have so many different combinations by puting it in 1st,2nd,3rd,4th 5th gear and make low low a little bit higher

rockhound · « **Reply #17 on:** Mar 13, 2005, 09:20:01 PM »

Ultimate dual!
I've been hitting the trails for many years. My first time out with the ultimate setup brought a whole new meaning to rock crawling. No more slipping the clutch, going too fast over rough areas, stalling at just the wrong time, or charging up the hill out of control to make the summit. Money well spent. I paid $600 for a rebuilt tranny. Then I bought the transfer, gears, adapter. You're going to need the crossmember too, and driveshaft work... How slow do you want to go?

sloyota · « **Reply #18 on:** Mar 18, 2005, 08:15:17 AM »

Dual case's is the way to go,thanks for the good info,I'm calling marlin today so i can empty my wallet!

hi on lux · « **Reply #19 on:** Dec 26, 2007, 07:48:00 AM »

Quote from: Hyena on Mar 10, 2005, 07:58:03 PM

An dual transfercase has just 2 transfer cases. The dual ultimate has 2 transfer cases and a 4.7 gear in it. The ultimate crawls slower and is a lot lot better for wheeling. Now, dual transfer cases crawl slower then just a 4.7, or a 5.0(4.97?) so a dual transfer case is better for crawling then a 4.7 or 5.0.

Quote from: BigMike on Mar 10, 2005, 11:38:40 PM

The good thing about this comparison is even if you just started out with the Dual setup, you can always eaisly upgrade to the Ultimate by replacing the gear set in your rear transfercase.

The Cool thing about the Ultimate is you can run:
a single stock 2.28:1
a single 4.70:1
or the Ultimate 10.72:1

BigMike

do i get it right?
DUAL TRANSFER CASE means 2 STOCK GEARED TCASE
ULTIMATE TRANSFER CASE means 1 TCASE WITH 4.7 GEARSET
DUAL ULTIMATE means 2 TCASE WITH 2 4.7 GEARSET EACH? (if there is such)

hi on lux · « **Reply #20 on:** Dec 26, 2007, 07:58:51 AM »

OT.

toyota tcase has a standard J pattern shift positions, what happens now (of the pattern) on the front and rear case on a dually set up?

given that it is not yet twin-sticked.

Fearofrunner · « **Reply #21 on:** Dec 26, 2007, 08:13:05 AM »

Quote from: mr4x42u on Mar 10, 2005, 11:08:17 PM

One more bonus to having the duel cases is front driveline angle..the extra 6 inches you get from adding the crawler box really helps with the front driveline angle on lifted trucks because it makes it longer and takes some ot the angle out..

How does the rear driveline angles look after a dual case install? Did you guys have to cut and rotate your rear axle again? CV shafts still work?

fordh8r · « **Reply #22 on:** Dec 26, 2007, 08:40:20 AM »

Quote from: hi on lux on Dec 26, 2007, 07:58:51 AM

OT.

toyota tcase has a standard J pattern shift positions, what happens now (of the pattern) on the front and rear case on a dually set up?

given that it is not yet twin-sticked.

The front shifter (with the mod to the shift rail that remains after the conversion.) will shift only forward and back for low range only. The rear shifter with the stock configuration will continue to function the same as before. With twin sticks they both just move back and forth.

I believe this is what you were asking, right?

OOPS · « **Reply #23 on:** Dec 26, 2007, 08:49:18 AM »

Quote from: hi on lux on Dec 26, 2007, 07:58:51 AM

OT.

toyota tcase has a standard J pattern shift positions, what happens now (of the pattern) on the front and rear case on a dually set up?

given that it is not yet twin-sticked.

Front case is just Hi/Lo, rear case without twin stick is the regular pattern.

Quote

How does the rear driveline angles look after a dual case install? Did you guys have to cut and rotate your rear axle again? CV shafts still work?

I had to rotate mine up using a CV, the nice thing is it gets your pinion out of the dirt with a CV since it is pointing at the T-case were the single they are parallel.

Fearofrunner · « **Reply #24 on:** Dec 26, 2007, 08:55:01 AM »

I've got a CV and a rotated axle already i was just wondering if it'll need to be rotated again for a dual install? Cause frankly that would suck to have to cut those perches off again.

94MtnYote · « **Reply #25 on:** Dec 26, 2007, 11:32:29 AM »

I heard someone mention that a single 4.7 is hard on the input shafts or something.
Is this a serious issue?

79coyotefrg · « **Reply #26 on:** Dec 26, 2007, 11:39:51 AM »

Quote from: toyoduh! on Dec 26, 2007, 11:32:29 AM

I heard someone mention that a single 4.7 is hard on the input shafts or something.
Is this a serious issue?

no, never heard of that

bigarms23 · « **Reply #27 on:** Dec 26, 2007, 11:41:20 AM »

with a single 4.7ypu can have the input and out put shafts cryoed but duals is the way to go especally when rockcrawling cause it alows for the best line to be taken on the trail cause your going so slow

MiniSimp · « **Reply #28 on:** Dec 26, 2007, 11:45:01 AM »

I could swear this was just covered....

jprinehart84 · « **Reply #29 on:** Dec 26, 2007, 07:13:53 PM »

shouldnt the tranny have some input, I have an 84 transmisson, g52 and thats the weakest of all, wont the duals really rip me apart

anomaly [OP]

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