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school me on sierras

Posted: Wed Mar 10, 2010 5:10 pm
by hiluxmad
just bought a sj40 engineered with a 5K motor and 5 speed :twisted:
was going to part it but sorta want to keep it now.....
it has been rolled have found another possible body
BUT its an SJ70...
question is will it fit on chassis?
body looks the same(kinda)
any help would be appreciated as i know nothing about zooks.
but the little bit of seat time i had was fun :D
Dave

Posted: Wed Mar 10, 2010 10:13 pm
by hiluxmad
noobie queston i know but i need to learn this stuff if i am going to own one

Posted: Thu Mar 11, 2010 10:58 am
by Highway-Star
Ok if yours is an SJ40, it originally had a 1litre motor in it. There are a couple of "types" of SJ40's, having varying levels of 1.3L equipment (disk brakes, plastic dash, wide trasmission tunnel flaring).

I have never checked it myself, But I believe an SJ70 body will fit, or at least be very close. The body mounts may vary slightly?
Its definitely been done by people before though. I would guess the hardest part would be fitting the wiring loom to the more modern widetrack dash (SJ70 is the widetrack Sierra model).



I'm not sure how to really "school" you on Sierras, they are reasonably simple 4wds. I assume you are coming from Hilux's? Sierras have a coupe of key mechanical differences from Toyotas.

The best difference to a Hilux is weight and size. everything can be just picked up and walked around with. Hilux bits weigh a tonne or 6!

The biggest thing people seem to fail to comprehend is the Sierra transfer case, it is divorced (not attached to the gearbox), and also it has a reduction ratio in high range. This means if you buy aftermarket reduction gears for the transfer they will lower your high range also. Which also brings me to saying depending on your model SJ40, you might not be able to fit aftermarket gears to your transfer (only the model with a 4wd light on the dash can accept the aftermarket gears).

Also SJ40's run LJ Suzuki size diff centres. These are smaller than the 1.3 Sierra centres, and you cannot interchange diff gears betweent the two types. You can also not get air lockers for your model, however you can get lockrights. SJ50 diffs (entire housings) do run 1.3 size centres and can be essentially bolted straight in to an SJ40 though. Your diff ratios will be 4.1, the only other 2 ratios you can get come from LJ80's (4.5), and LJ50's (4.8). 1.3 diff sizes have 3.9 (SJ50), or 3.7(SJ70), though lower ratio Vitara crown and pinions can be swapped in (4.3, 4.6, 4.8, 5.12....I think).


OK thats a bit ad-hoc :D
Do some reading around the place, and mess around with the car, you'll get to know it pretty quick :D

Re: school me on sierras

Posted: Thu Mar 11, 2010 12:16 pm
by BlueSuzy
hiluxmad wrote:just bought a sj40 engineered with a 5K motor and 5 speed :twisted:
was going to part it but sorta want to keep it now.....

but the little bit of seat time i had was fun :D
Dave
Thats it, your addicted.. :lol:

Highway-Star has said alot of good info to ponder..

Once there are specific questions, It will be easier to answer them then give you 5 pages of all about your sierra.

:lol:

Posted: Thu Mar 11, 2010 6:46 pm
by hiluxmad
main thing i need to know is if the body (sj70) will fit chassis (sj40)
if not how much needs to be done?
any one done it(i would assume so :D )
dont want to change the chassis as then i would have to get it re engineered. :bad-words:
failing that any one got an sj40 hanging about that needs a new home?
only need body shell and drivers door..... :D

Posted: Thu Mar 11, 2010 8:06 pm
by zookster666
hiluxmad wrote:main thing i need to know is if the body (sj70) will fit chassis (sj40)if not how much needs to be done?
any one done it(i would assume so :D )
dont want to change the chassis as then i would have to get it re engineered. :bad-words:
failing that any one got an sj40 hanging about that needs a new home?
only need body shell and drivers door..... :D
im 99.9% sure the body is a direct fit but you will have to sort out the wiring to suit the 5k motor

Posted: Fri Mar 12, 2010 4:06 am
by zukmeista
I have heard that 1.3l bodies won't fit a 1.0l chassis and vice versa...

Posted: Fri Mar 12, 2010 2:01 pm
by thehanko
get a tape measure and start checking, body mount seperation, body mount to wheel arch, width and depth of tranny tunnel and you should have a fairly good idea if it will fit.

wouldnt a different body need engineering anyway?

Posted: Fri Mar 12, 2010 2:36 pm
by hiluxmad
doesnt need engineers for a straight body swap as it is a full chassis vehicle in vic anyway