View Full Version : dual cases or creeper case

02-03-2009, 10:23 PM
alright... so its late im tired, i have a question
if i wanna do dual cases and just put 2 stock whats that give me
if i wanna put 1 stock and 1 4.70 whats that give me
if i wanna put 1 stock and 1 2.28 creeper box whats that give me

or is there a difference between creeper box and a stock box with or without gears im so confused... but really want that set up

02-03-2009, 10:56 PM
i think a stock box is 2.23 but don't quote me on that. check out www.marlincrawler.com they shoould answer all your q's

02-04-2009, 10:11 AM

here's a chart for ya, duals will give you the option of 2wd lo, and a selection of lo and double lo, putting you at a lower ratio 108:1 if you run 5.29 gears, where a 4.7 gives you only one choice of LO at 98:1. I would choose duals.

02-04-2009, 11:04 AM
alright still confused shittless but i think i got it... so run a stock transfer case with dual shifters, 2.28 and 2h 2l then run a another transfer case with 1 shifter 4.70

02-04-2009, 11:18 AM
meaing leaving the 1 box stock and putting 4.70 gears in the front box? i donno this is confusing haha

02-04-2009, 12:26 PM
wow, if your not grasping this, I suggest you take it to a shop for install, cause the understanding is the easy part. yes you can run a twin stick shifter in only one case to seperatly run high an lo, 4 and 2, Marlin sells them, and on your case you have to remove the interlock pin. But this does include re and re of the t-case. As for what I was suggesting, Dual cases are the "crawl box of one case mounted to a second case. you can only do the with the early RF1A gear drives, top shift required. to run a dual on the late model require additional adapters etc, more money. with this set up, the first case is only a high low selector box, the second case is the " transfer case" thus including the high low positions, but transfer direction from rear, to rear and front. so now you can run a multitude of combinations for control and traction. You must remember, by going this rout, you have to shorten the rear drive shaft, lengthen the front drive shaft, and build or purchase a dual t-case cross member. The 4.7:1 kit is just gears you put in the t-case. If your a gadget freak, you could still put dual shifters in the 4.7:1 case for a 2wd lo option, and also through one in the dual case for 3 shifters, so you get the option also of a lo lo 2wd, but i would say that is a useless option on the duals.

02-04-2009, 01:43 PM
alright so just go single case with 4.70 or whatever and run normal set up.. so its all stock with gears

02-04-2009, 03:17 PM
to summarize, I prefer the dual, as it offers a lot more options. As soon as I air down to 10psi, the lockers make it to difficult to just drive around, in high 2wd, at low speeds, without alot of clutch work. I always shift the first box into low, now the gears are closer together, and less abusive on the clutch. when the trail requires 4wd, I usually run the first box back into high, and put the second into 4wd low, (so its like stock 4wd low) if requiring more control, rock and technical, Ill put the first box back into low. So now the truck is in a "double low" . I would not bother with a 4.7:1 unless I was running a 37" or bigger tire, or all i used the truck for was technical slow crawl wheeling.
But the fact is that bc trails offer many types of terrain, and its nice comming out of a technical trail and placing the truck from the "double low" selection, into just a low, now there is torque with wheel spin, as so I can at least achieve more than 20 kph without going into high.

heres some speeds (i have 5.29's) , 4wd low - max 5th gear 55kph , both boxes in low 5th gear -20kph, just choosing high then to a 4.7:1, doesn't give you alot of option for trail types, And with the toyota 4cyl engine, High just isnt usually enough to keep the wheels turning

02-04-2009, 04:02 PM
can you post of pictures of ur set up... thanks for the help now i know wtf to do haha but i still might do 3 shifters.. so i can 2 wheel low

02-04-2009, 04:47 PM
adapter plus gear reduction box

1983 top shift gear drive t-case


dual t-case cross member / skid plate


two cases put together


and here is step by step instructions with pictures on how to build and put it together

http://images.google.ca/imgres?imgurl=http://www.trail-gear.com/tech/dualcase/2007-275-199.jpg&imgrefurl=http://www.trail-gear.com/tech/dualcase/index.html&usg=__sbtj4ZvXye4yhrSgXUGZ6uSI6m8=&h=199&w=300&sz=21&hl=en&start=90&tbnid=7nug_4frsOt4hM:&tbnh=77&tbnw=116&prev=/images%3Fq%3Dtoyota%2Bdual%2Bt-case%26start%3D72%26gbv%3D2%26ndsp%3D18%26hl%3Den% 26client%3Dfirefox-a%26rls%3Dorg.mozilla:en-US:official%26sa%3DN

g-rod , I can appreciate your eagorness, and your questions, but all this information is at your fingertims, rather than asking these questions and blurting out, you need to do your homework first, search around, read threads, project builds, then if you still have questions which you shouldn't by then, ask them. the stuff your asking has been done and done again and is on every 4x4 forum with pics and writeups. [cheers] as you see, you ask and I've responded with in moments with pics and links, and Im terrible on a computer..... .

02-04-2009, 05:41 PM
www.marlincrawler.com (http://www.marlincrawler.com)

IMHO dual cases is better then putting 4.7gears into 1 case. You'll have more options for gears, and a better reverse ratio in low.

I started with 2 stock cases, now i have a dual's with 4.7in the rear case and the rear case twin sticked. I have 4 shifters. I have 20 forward gears and 4 reverse.

02-05-2009, 06:59 PM
if ya dont have the funds for duals, put 4.7 gears in the case you got now and save up for the adapter later.

then when you do the duals keep your case and throw a stock one in. and you will have your desired 2.28 and 4.7 case

dirka dave
02-05-2009, 07:21 PM
Black box......