4spd Vit auto to sierra Transfer

[A1]

Any 1 out there tried or actually acheived this ?


I have yet to pull the vit transfer out as I was plannin on runnin duals ...so im not sure of wat the auto output shaft looks like and whether I can do somthing similair to Sam (OVERKILL) had done to his Vit with the manual tranny ...

I have posted this elsewhere and Gwagon had replyed that droopypete had started this conversion or actually done it and that some sort of hiace part from memory can adapt to the vit auto to run a normal rear shft (jack shaft of sorts) to mate to the transfer ...

(instead of pm -in I thought that any info he can contribute would be betta off in a tech section for everyone to use )



Anyway as stated I was goin to run the vit transfer I have that is fitted with crawlers (already) cut the front output off and plate ....then mount a sierra transfer behind as so many in the states and a few in OZ have done I already have gears on order for the zook case to achieve some high range reduction for road croozin .......

But I am worried bout the extra moving parts and more strain put through the driveline letalone the extra weight albeit not alot but as every1 knows wieght is high on the agender these days ...

Also Im still a bit worried bout the strenght of the 4spd auto .....would the 3spd be a betta version they seem to be able to be beefed up a reasonable amount ....can the 4spd receive the same ....also as the 4spd is electronic by gettin rid of that I may end up with 1 less problem ....if it decides to fail ??



Anyinfo appreciated


Cheers


Dan

[antt]

an auto, with duals, both with crawler gears will have a crazy low ratio

[sierrajim]

Maybe contact the good ol US of A and find out if the 2WD Tracker (VIT) box is the same as the 4WD?

In many US vehicles that are available as both 2wd and 4wd the only difference is that the 4wd has a transfer and the 2wd has an extension housing.

[largesuzy]

i would sugest watching this thread

[A1]

yeh I know but hey imagine the options LOL ...........front case low rear high ......the auto box zaps the reduction it seems I was expecting mine to crawl really well (well it duz but not as well as i thoughtit would be considering the difference the series 1 made to my old coiler .
The auto is cool Ive really only had it out once when REDZOOOK had 1 of his zook ONLY RUNS and the dual lockers and gears felt good but i would hate to have anylarger treads .........


I need sumthing with the lowest weight I can get as its already gunna have some big ass heavy diffs .. I want it lite lite thats the key this build ....well thats where is startin this time round LOL ,we;ll see where it ends up




Dan

[droopypete]

I will post more later, but untill then can I sugest you run a tape messure over the components you intend to use and add them all up
Peter.

[moose]

Grover , a lil' blue LJ , has 1.6 MPI , 4spd auto , sierra transfer , F & R locked centres !!!

give 4PLAY OFFROAD a ring !!!
he has done a couple !!!!
03 97614694 !!!!

[mud4b]

i have done a vit efi and 4speed auto/ t-xase into a sierra t-case on a jimny.

all std gears. ill see if i can find pics..

With the 4 speed and 3 speed auto, if you remove the t-case a sierra jack shaft will fit strait onto the output shaft spline. all you need to do is make a dust cover.
the wiring and puter can be made to work with either a carbed or efi wiring loom.

the 3 speed auto is a holden trimatic. so you can but upgades off the shelf.

[A1]

I will post more later, but untill then can I sugest you run a tape messure over the components you intend to use and add them all up
Peter.

Yep your right Pete I do have run tape over everything to check clearances and such .....if your refering to bein able to run this setup ....the vit has wheelbase of around 102" which i intend to push out a wee bit further maybe 105" ....so i dont think I will have anydramas fittin the two in (if I do go that route) obviously the rear shaft will be shortish compared to standard .......

I was just curious if its acheiveable to remove the vit transfer and align up the sierra trnasfer in its place ....


I look forward to any info you care to share on this subject

Cheers

Dan

Moose wrote

Grover , a lil' blue LJ , has 1.6 MPI , 4spd auto , sierra transfer , F & R locked centres !!!

give 4PLAY OFFROAD a ring !!!
he has done a couple !!!!
03 97614694 !!!!

Moose cheers mate yeh ive also seen the grand vit in 4wd monthly aswell as another zook stockman that cheezy did some cage and toob work on built by 4play .....cheers good to know that u r still browsin in the zook section



mud4b wrote

i have done a vit efi and 4speed auto/ t-xase into a sierra t-case on a jimny.

all std gears. ill see if i can find pics..

With the 4 speed and 3 speed auto, if you remove the t-case a sierra jack shaft will fit strait onto the output shaft spline. all you need to do is make a dust cover. the wiring and puter can be made to work with either a carbed or efi wiring loom.

the 3 speed auto is a holden trimatic. so you can but upgades off the shelf.


cheers mud4b thats the info i was chasing after I was worried after talkin to others that maybe the auto was a bit different and maybe didnt run a bearin right at the end of the output to alteast carry some load (although the auto and transfer will be both coupled together with a new crossmember) .......

So there should be only the torque load at this point ? and any slight flex in the jack shaft uni during chassis flexin and maybe torque twisting

have you done this mod .... with the jack shaft onto the auto output .....how has the reliability been is the 4peed goin to handle the punishment ...or am i just best to chase a 3 speed ......(do u have 1 )

[mud4b]

So there should be only the torque load at this point ? and any slight flex in the jack shaft uni during chassis flexin and maybe torque twisting

have you done this mod .... with the jack shaft onto the auto output .....how has the reliability been is the 4peed goin to handle the punishment ...or am i just best to chase a 3 speed ......(do u have 1 )

1. yes only torque load.

2 the pic above is how it was done. although cleaned up. both t-cases were seperate to each other (not solid mounted to each other ) and it never had a problem. not even a vibration.

the reliability was great untill he decided to strip it. 4 speed autos are strong. you really should have no problems with it.

i do have a 3 speed but its definently not for sale... he he..

[antt]

was it street driven mark? i was lookin at goin duals, but was gonna mount the two tcases together

[Bentzook]

this is my setup, straight behind the auto, no jackshafts, just one solid box

[mud4b]

was it street driven mark? i was lookin at goin duals, but was gonna mount the two tcases together

IT WAS MEANT TO BE.

but he ended up stripping it..

[hypo]

this is my setup, straight behind the auto, no jackshafts, just one solid box

Dude they look like hilux tcase's ???

i think Dan is asking bout zook tcase's...........

[Bentzook]

they are lux cases, bolted right upto the auto. I went for overall strength and better ratios. you only want to do this thing once, not have to rebuild it in 6 months when it snaps off. maybe overkill but its solid and already proven strong as an ox.

[Luigi Malone]

i have done a vit efi and 4speed auto/ t-xase into a sierra t-case on a jimny.

all std gears. ill see if i can find pics..

With the 4 speed and 3 speed auto, if you remove the t-case a sierra jack shaft will fit strait onto the output shaft spline. all you need to do is make a dust cover.
the wiring and puter can be made to work with either a carbed or efi wiring loom.

the 3 speed auto is a holden trimatic. so you can but upgades off the shelf.

I am looking at going G16a and using a carbed intake to avoid the wiring hassle. Can a 4 speed auto be used? and how? I am told the 4 speed auto requires an ECU. ?
LM.

[Gwagensteve]

I don't really think that it is feasible to run the 4 speed behind hte carby motor. There are stand alone computers for the more common street automatics, but my guess is if the hassle of EFI wiring is puttung you off, the work required to make the 4speed work in this application - throttle position, load and speed.

I have a vitara trimatic in the shed. It is true that the sierra slip yoke fits into the back of the trimatic but I reckon that it needs a support bearing - the output shaft of the trimatic looks to sloppy to me to get by without a bearing there.

I like the idea of the trimatic behind en EFI 1.6 - that was my plan.The cheap buildability of the "traumatic" appeals to me.

I have seen rear support bearings and covers on 4 speeds - either way it looks pretty easy.

Steve.

[A1]

So there should be only the torque load at this point ? and any slight flex in the jack shaft uni during chassis flexin and maybe torque twisting

have you done this mod .... with the jack shaft onto the auto output .....how has the reliability been is the 4peed goin to handle the punishment ...or am i just best to chase a 3 speed ......(do u have 1 )

1. yes only torque load.

2 the pic above is how it was done. although cleaned up. both t-cases were seperate to each other (not solid mounted to each other ) and it never had a problem. not even a vibration.

the reliability was great untill he decided to strip it. 4 speed autos are strong. you really should have no problems with it.

i do have a 3 speed but its definently not for sale... he he..

Oh ok mud4b ..I thought you had run a setup with the sierra transfer only to the vit auto .....that was what i thought you meant I do have quite few pics of dual setups ..but was thinkin to get rid of totally the vit transfer and just run the sierra transfer ......less moving parts has got to mean less parts to break ...........dont get m,e wrong I do still like the thought of duals .......reliability and strenght are also of course a big factor .............keep th info flowing



Gwagensteve

I have a vitara trimatic in the shed. It is true that the sierra slip yoke fits into the back of the trimatic but I reckon that it needs a support bearing - the output shaft of the trimatic looks to sloppy to me to get by without a bearing there. ..thats what I had been told and was why i was asking the q ..i think u may have also mentioned this on zukikrawlers

I like the idea of the trimatic behind en EFI 1.6 - that was my plan.The cheap buildability of the "traumatic" appeals to me.

I have seen rear support bearings and covers on 4 speeds - either way it looks pretty easy. .........this would have to be the hiace unit wouldnt ??........sounds like a very easy mod .....



appreciate all the info


Dan

[Luigi Malone]

I asked an auto electrician about hooking up the electrics for a 4 sp auto. He thinks that if the fourth speed, or overdrive speed, is the electric part, that it would be easy.
I am not familiar with any automatics, so what does the three and four speeds use from the computer?
LM.

[mud4b]

Oh ok mud4b ..I thought you had run a setup with the sierra transfer only to the vit auto .....that was what i thought you meant I do have quite few pics of dual setups ..but was thinkin to get rid of totally the vit transfer and just run the sierra transfer ......less moving parts has got to mean less parts to break ...........dont get m,e wrong I do still like the thought of duals .......reliability and strenght are also of course a big factor .............keep th info flowing

i am working on this type of setup for the mud4b now.
i am making my own bearing support housing.

[mud4b]

I asked an auto electrician about hooking up the electrics for a 4 sp auto. He thinks that if the fourth speed, or overdrive speed, is the electric part, that it would be easy.
I am not familiar with any automatics, so what does the three and four speeds use from the computer?
LM.

basically you will lose the overdrive/4th if the puter is not used.

a 3 speed does not use a puter.

[A1]

Oh ok mud4b ..I thought you had run a setup with the sierra transfer only to the vit auto .....that was what i thought you meant I do have quite few pics of dual setups ..but was thinkin to get rid of totally the vit transfer and just run the sierra transfer ......less moving parts has got to mean less parts to break ...........dont get m,e wrong I do still like the thought of duals .......reliability and strenght are also of course a big factor .............keep th info flowing

i am working on this type of setup for the mud4b now.
i am making my own bearing support housing.

arh very cool, so you going to run this setup behind the v6 u plan on fitting soon ? or just the the time bein till you go the v6 as i would guess you wouldnt have much of a chance fitting up the 3 spd to the v6 although Im most prob wrong lol .





Dan

[mud4b]

Oh ok mud4b ..I thought you had run a setup with the sierra transfer only to the vit auto .....that was what i thought you meant I do have quite few pics of dual setups ..but was thinkin to get rid of totally the vit transfer and just run the sierra transfer ......less moving parts has got to mean less parts to break ...........dont get m,e wrong I do still like the thought of duals .......reliability and strenght are also of course a big factor .............keep th info flowing

i am working on this type of setup for the mud4b now.
i am making my own bearing support housing.

arh very cool, so you going to run this setup behind the v6 u plan on fitting soon ? or just the the time bein till you go the v6 as i would guess you wouldnt have much of a chance fitting up the 3 spd to the v6 although Im most prob wrong lol .
Dan

close. i have decided not to go down the v6 route. i do not need the power or the extra weight.
i will be fitting this to the jimny g13bb currantly in the mud4b. and a low boost hair dryer.


you could make the 3 speed fit a v6. it just requires some thinking and some time..

[Luigi Malone]

I asked an auto electrician about hooking up the electrics for a 4 sp auto. He thinks that if the fourth speed, or overdrive speed, is the electric part, that it would be easy.
I am not familiar with any automatics, so what does the three and four speeds use from the computer?
LM.

basically you will lose the overdrive/4th if the puter is not used.

a 3 speed does not use a puter.

So, if I understand this right, a 4sp auto is only controlled by the computer in 4th/ overdrive?
My auto leckie seemed to think that a manually operated switch could be used for the overdrive/4th speed. But only if the rest of the auto works fine without the ECU.
If this is the case, I may be able to fit a four speed and just have a switched overdrive for highway use.
Thoughts, anyone who knows?
LM.

[wanna]

ok i,ll tell you how i did it for support bearing the autos runs a seal take of the front plate of the tranfer and machine it to run a bearing cost me i think 80$ to do the mod its easy one tip the beaing i used is sealed with a lock screw same as bearing in pillow blocks you buy from bearing shops i then ran a sleve of grafite inside the bearing so the jack shaft could move

[A1]

Hey dude cheers for the info anychance of some pics of it fitted ..?

[antt]

bringin this thread back up, as i need to sort out which way i'm goin with gearing in the next week or so. i'm lookin to remove the vit transfer totally and just run a sierra case. but will the manual cope without an extra support bearing on the output? or should i look at doin a cover plate with bearing?

this wont be a daily driver so would it survive without the bearing?

[Gutless]

little off topic, but it sounds like there are alot of people who want adapters for sierra cases in their vits, aswell as vit autos in their sierras.

i am getting my very own milling machine soon, and will be looking at doing some of this stuff. May even be persuaded to make a kit. If anyone has any pics of what they have done so far that they can post, that would be very helpfull.

cheers
Pete

[small talk]

Just curious could you go: twin sierra cases in a sierra, joined by say a rubber joiner thing (unsure of what they are called) joined like this: rear output shaft of the first transfer mated to the front outpout of the secon case then run tailsahfts from the rear transfer case?? (if you can understand that)

Brock.

P.s sorry if its off topic.

[Gutless]

Just curious could you go: twin sierra cases in a sierra, joined by say a rubber joiner thing (unsure of what they are called) joined like this: rear output shaft of the first transfer mated to the front outpout of the secon case then run tailsahfts from the rear transfer case?? (if you can understand that)

Brock.

P.s sorry if its off topic.

A single uni joint would be the very least you would want.