Author Topic: do you think twin stock case will holdup to a 4.3 and 700r4 (Read 5414 times)

Deeter9 · « **on:** Jun 16, 2011, 01:31:42 PM »

I'm running a tbi 4.3 and 700r4 to twin stock cases, triple sticked, will they hold up?

superyota · « **Reply #1 on:** Jun 16, 2011, 01:38:23 PM »

i had a buddy that ran a single stock 21 spline toy tcase behind his 4.3 and 700r4 in a 90 yj on 60's front and rear with 5.89's and sitting on 39.5 iroks. he drove it for almost 3 years like that and beat on it out at hammers, rubicon and dusy. never had any problems. he upgraded to a 4 spd. atlas and it's already blown up 3 times on him. he always says he wished he would have just doubled up the toys instead. It will hold up fine.

Peterbuilt84 · « **Reply #2 on:** Jun 16, 2011, 01:39:33 PM »

21 or 23 spline?

superyota · « **Reply #3 on:** Jun 16, 2011, 01:39:50 PM »

clean rig by the way. links look good.

Deeter9 · « **Reply #4 on:** Jun 16, 2011, 01:48:29 PM »

thanks, I think they are 21s, but I'm not sure. I pulling them to finish my triple stick.. The RAdesigns setup is awesome.

SamuelEngelking · « **Reply #5 on:** Jun 16, 2011, 02:02:47 PM »

yea that thing is bad ass

Deeter9 · « **Reply #6 on:** Jun 16, 2011, 02:30:13 PM »

I do like the skinny pedal, and that was my only worry. I was gonna wait till it breaks then try the Marlin 30 splines front and rear?

superyota · « **Reply #7 on:** Jun 16, 2011, 02:43:41 PM »

I don't think you will have problems with them breaking, unless your axles aren't geared low. Without the axles geared low, your butting a lot of strain on the rest of the drivetrain, but if it is low, then no worries. I have video of my buddy's jeep bouncing to where the front and rear tires were actually coming off the ground and hammering down. he broke a locker in the front end doing it, but the toyota case held up just fine.

Deeter9 · « **Reply #8 on:** Jun 16, 2011, 02:53:16 PM »

wow, whats low?

superyota · « **Reply #9 on:** Jun 16, 2011, 02:56:30 PM »

Quote from: Deeter9 on Jun 16, 2011, 02:53:16 PM

wow, whats low?

looks like your running one ton axles, and a 39.5 or 42? I would say at least 5.13's but lower would be better(less stress) on the tcase.

4RunnerChevy · « **Reply #10 on:** Jun 16, 2011, 03:09:01 PM »

Its just a TBI 4.3, of course it will hold up.

yota_krawler · « **Reply #11 on:** Jun 16, 2011, 04:01:26 PM »

I was wondering this too. I want to run r150f and dual 23 spline stocks with marlin chromolies I figured it would be fine. Its not a blown 400 hp motor or something.

Deeter9 · « **Reply #12 on:** Jun 16, 2011, 04:58:01 PM »

axles are tons w/ 4.56 and detroits

bigarms23 · « **Reply #13 on:** Jun 16, 2011, 06:15:12 PM »

they will hold up just fine even when hammering down

Deeter9 · « **Reply #14 on:** Jun 16, 2011, 07:40:53 PM »

sweet thats what i wanted to hear.

Rocksnail · « **Reply #15 on:** Jun 17, 2011, 11:59:04 AM »

im running a 4.3/350/2.28/4.7 on tons with 5.13s I feal that it will hold up just fine. hammer down

Deeter9 · « **Reply #16 on:** Jun 17, 2011, 01:52:17 PM »

how is it with the 5.13s and lo-lo? Im not nearly as lo as you but what do you think? I was debating on doing the 4.7 in the second case but I thought it might be to lo. but Can you be to Lo?

Deeter9 · « **Reply #17 on:** Jun 17, 2011, 01:53:39 PM »

In my TJ I had 4.0 w/auto, 4.3 Atlas and 4.56s on 44s and I didn't think it was lo enough or I needed a V8.

IronClad · « **Reply #18 on:** Jun 17, 2011, 02:03:50 PM »

Id go with atleast some 5.13's to help the tcases survive. Just IMO, It will take more stress off them.

Deeter9 · « **Reply #19 on:** Jun 17, 2011, 02:14:01 PM »

I have to put the front Detroit in and I was planing to going at least 5.13s, I think 5.13s would still haul ass and be a defiant better crawl gear.

Deeter9 · « **Reply #20 on:** Jun 17, 2011, 02:16:05 PM »

so here's the setup: TBI 4.3, 700r4 with vette servos, 2 stock cases, tons with 5.13s and 39.5 Irocs. I would like the 40-42in stickies.

IronClad · « **Reply #21 on:** Jun 17, 2011, 02:19:54 PM »

sounds like a sure fire setup to me. Thats kind of what i want to do but a tbi 350 or SBF and c4 with my stock cases and tons and 40's

Deeter9 · « **Reply #22 on:** Jun 17, 2011, 02:26:14 PM »

I was just reading Juds thread and how he broke the output and input with the 22re. wow

superyota · « **Reply #23 on:** Jun 17, 2011, 02:30:53 PM »

here is a pic of buddy's yj i described above. ran a 21 spline toy tcase for almost 3 years with no issues, and drove it hard.

IronClad · « **Reply #24 on:** Jun 17, 2011, 02:35:40 PM »

Quote from: Deeter9 on Jun 17, 2011, 02:26:14 PM

I was just reading Juds thread and how he broke the output and input with the 22re. wow

Jud and the others that seem to chew outputs/inputs up for breakfast on here also have been running 4.10/4.56's and thats why. big tires plus 4.10'ish gears = bad news bears for the output.. axle gears takes alot of stress off them.

83yota · « **Reply #25 on:** Jun 22, 2011, 09:04:35 AM »

they will do fine.

howyadoin · « **Reply #26 on:** Jun 22, 2011, 09:50:20 AM »

Your 700r4 will die LONG before your Yota t-case...ask me how I know.

Do yourself a favor and start looking for a 4l80e or th400 now...it'll make it simpler when the time comes. .02

83yota · « **Reply #27 on:** Jun 23, 2011, 09:13:37 AM »

just so you know they DO NOT make an adapter to run the TH400 to the toy case. This is the reason i am running a TH350 behind my SB

4RunnerChevy · « **Reply #28 on:** Jun 23, 2011, 05:14:58 PM »

Its been 4 years with 700R4, no problems. Heavy duty clutch pack. I would ask how you know ?

howyadoin · « **Reply #29 on:** Jun 23, 2011, 05:39:00 PM »

Quote from: 4runnerchevy on Jun 23, 2011, 05:14:58 PM

Its been 4 years with 700R4, no problems. Heavy duty clutch pack. I would ask how you know ?

They are a notoriously shiatty trans...I have smoked 3 personally, they were all "built to the hilt"....my junk definately gets used pretty aggressively. .02 In addition, I have several friends who have attempted to use them in their buggies with exactly zero luck as well....just a really light duty pile imho. I can also tell you that I've broken the tailhousing on two th350's as well, I've figured out that a second rear output brace is a must on them as well. .02 I run a 4l60e in my current Chevota and haven't had issues with it yet...keeping my fingers crossed. I will definately only run a th400 or 80e in future buggies fwiw.

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