4 cyl gearbox into a 6 cyl series.

Hi there.

Just in relation to the mounts on series gearboxs, will a 4cyl gearbox bolt
straight into the transmission mounts on a 6 cylinder chassis? because the
gearbox is mount a couple of inches back on the 6 cylinder, is this achieved
by different mounts on the chassis or modified mounting bolts on the g/box?

theres just a couple of 4 cylinder boxs going cheap, and if i decide to do
any engine swap, will probably swap it for a 4cylinder or holden motor which
are easier to mate up with the 4 cylinder box.

Thanks for any advice.

Sam.

During stardate Thu, 13 Oct 2005 08:35:48 +1000, "Samuel"
<[email protected]> uttered the imortal words:

>Hi there.
>
>Just in relation to the mounts on series gearboxs, will a 4cyl gearbox bolt
>straight into the transmission mounts on a 6 cylinder chassis? because the
>gearbox is mount a couple of inches back on the 6 cylinder, is this achieved
>by different mounts on the chassis or modified mounting bolts on the g/box?
>
>theres just a couple of 4 cylinder boxs going cheap, and if i decide to do
>any engine swap, will probably swap it for a 4cylinder or holden motor which
>are easier to mate up with the 4 cylinder box.
>
>Thanks for any advice.
>
>Sam.
>

I think the bell housing is the main difference. So if you bolt the
bell housing off the 6 cyl gearbox to the 4 cyl gearbox then the 4
cylinder gearbox should be in the correct place.

I also have a vague recollection of the 6 cylinder having high ratio
gears. I can't recall if this is the box or just the transfer gears
but I'm sure an expert will pop up...

Lee D
--
Success is going from failure to failure without a loss of enthusiam.
Winston Churchill

www.lrproject.com
'76 101 Camper
'64 88" IIa V8 Auto
'97 Disco ES Auto LPG'd
'01 Laguna

"Lee_D" <[email protected]> wrote in message
news[email protected]...
> During stardate Thu, 13 Oct 2005 08:35:48 +1000, "Samuel"
> <[email protected]> uttered the imortal words:
>
> >Hi there.
> >
> >Just in relation to the mounts on series gearboxs, will a 4cyl gearbox
bolt
> >straight into the transmission mounts on a 6 cylinder chassis? because
the
> >gearbox is mount a couple of inches back on the 6 cylinder, is this
achieved
> >by different mounts on the chassis or modified mounting bolts on the
g/box?
> >
> >theres just a couple of 4 cylinder boxs going cheap, and if i decide to
do
> >any engine swap, will probably swap it for a 4cylinder or holden motor
which
> >are easier to mate up with the 4 cylinder box.
> >
> >Thanks for any advice.
> >
> >Sam.
> >
>
> I think the bell housing is the main difference. So if you bolt the
> bell housing off the 6 cyl gearbox to the 4 cyl gearbox then the 4
> cylinder gearbox should be in the correct place.
>
> I also have a vague recollection of the 6 cylinder having high ratio
> gears. I can't recall if this is the box or just the transfer gears
> but I'm sure an expert will pop up...
>

thanks Lee.

so the casings and all the transmission to chassis mounting points are the
same between the 4 and 6 cylinder?

just want to be absolutely sure before i go buying big gearboxes that are
not going to be any use.

Sam.

Samuel wrote:

>
> "Lee_D" <[email protected]> wrote in message
> news[email protected]...
>> During stardate Thu, 13 Oct 2005 08:35:48 +1000, "Samuel"
>> <[email protected]> uttered the imortal words:
>>
>> >Hi there.
>> >
>> >Just in relation to the mounts on series gearboxs, will a 4cyl gearbox
> bolt
>> >straight into the transmission mounts on a 6 cylinder chassis? because
> the
>> >gearbox is mount a couple of inches back on the 6 cylinder, is this
> achieved
>> >by different mounts on the chassis or modified mounting bolts on the
> g/box?
>> >
>> >theres just a couple of 4 cylinder boxs going cheap, and if i decide to
> do
>> >any engine swap, will probably swap it for a 4cylinder or holden motor
> which
>> >are easier to mate up with the 4 cylinder box.
>> >
>> >Thanks for any advice.
>> >
>> >Sam.
>> >
>>
>> I think the bell housing is the main difference. So if you bolt the
>> bell housing off the 6 cyl gearbox to the 4 cyl gearbox then the 4
>> cylinder gearbox should be in the correct place.
>>
>> I also have a vague recollection of the 6 cylinder having high ratio
>> gears. I can't recall if this is the box or just the transfer gears
>> but I'm sure an expert will pop up...
>>
>
> thanks Lee.
>
> so the casings and all the transmission to chassis mounting points are the
> same between the 4 and 6 cylinder?
>
> just want to be absolutely sure before i go buying big gearboxes that are
> not going to be any use.
>
> Sam.

The gearbox mounts are in a different place on the chassis - gearboxes are
identical (including ratios) except for the bell housing, unless it is a
One Ton, in which case the transfer case is different. I'm pretty certain
the mounting brackets (on the t/c) are the same for six and four, but if
they are not you can easily swap them on your existing box.
JD

>>> >
>>>
>>> I think the bell housing is the main difference. So if you bolt the
>>> bell housing off the 6 cyl gearbox to the 4 cyl gearbox then the 4
>>> cylinder gearbox should be in the correct place.
>>>
>>> I also have a vague recollection of the 6 cylinder having high ratio
>>> gears. I can't recall if this is the box or just the transfer gears
>>> but I'm sure an expert will pop up...
>>>
>>
>> thanks Lee.
>>
>> so the casings and all the transmission to chassis mounting points are the
>> same between the 4 and 6 cylinder?
>>
>> just want to be absolutely sure before i go buying big gearboxes that are
>> not going to be any use.
>>
>> Sam.
>
>The gearbox mounts are in a different place on the chassis - gearboxes are
>identical (including ratios) except for the bell housing, unless it is a
>One Ton, in which case the transfer case is different. I'm pretty certain
>the mounting brackets (on the t/c) are the same for six and four, but if
>they are not you can easily swap them on your existing box.
>JD

Six-pot gearbox moutings are in a different place to 4-pot. The
gearbox x-member which carries the mountings is further back, to
accomodate the longer engine. The propshafts are correspondingly
different lengths. If you fit a 4-cylinder then you have two options.

1. remove the engine mounts and fit 4-cylinder engine mounts in the
correct place for a 4-pot, and move the gearbox x-member forward to
accomodate. The engine/gearbox will then be in the same place as an
original 4-clyinder. This will also necessitate fitting 4-clyinder
propshafts.

2. leave the gearbox x-member in place, and weld the 4pot engine
mounts onto the chassis in the place where the 4-pot will sit once it
is fitted. The engine will be further back in the chassis than normal,
which will mean you have to retain the 6-pot bulkhead but can also
keep the 6-pot props.

Alex

During stardate Thu, 13 Oct 2005 22:39:31 GMT, Alex
<[email protected]> uttered the imortal words:


>Six-pot gearbox moutings are in a different place to 4-pot. The
>gearbox x-member which carries the mountings is further back, to
>accomodate the longer engine. The propshafts are correspondingly
>different lengths. If you fit a 4-cylinder then you have two options.
>
>1. remove the engine mounts and fit 4-cylinder engine mounts in the
>correct place for a 4-pot, and move the gearbox x-member forward to
>accomodate. The engine/gearbox will then be in the same place as an
>original 4-clyinder. This will also necessitate fitting 4-clyinder
>propshafts.
>
>2. leave the gearbox x-member in place, and weld the 4pot engine
>mounts onto the chassis in the place where the 4-pot will sit once it
>is fitted. The engine will be further back in the chassis than normal,
>which will mean you have to retain the 6-pot bulkhead but can also
>keep the 6-pot props.
>
>Alex

Take more water with it Alex ;0) The OP is swaping the box not the
engine :0)

But sound advice for anyone sticking a 4 pot in a 6 pot hole none the
less.

Lee D
--
Success is going from failure to failure without a loss of enthusiam.
Winston Churchill

www.lrproject.com
'76 101 Camper
'64 88" IIa V8 Auto
'97 Disco ES Auto LPG'd
'01 Laguna

On Thu, 13 Oct 2005 23:43:25 +0100, Lee_D
<[email protected]> wrote:

>During stardate Thu, 13 Oct 2005 22:39:31 GMT, Alex
><[email protected]> uttered the imortal words:
>
>
>>Six-pot gearbox moutings are in a different place to 4-pot. The
>>gearbox x-member which carries the mountings is further back, to
>>accomodate the longer engine. The propshafts are correspondingly
>>different lengths. If you fit a 4-cylinder then you have two options.
>>
>>1. remove the engine mounts and fit 4-cylinder engine mounts in the
>>correct place for a 4-pot, and move the gearbox x-member forward to
>>accomodate. The engine/gearbox will then be in the same place as an
>>original 4-clyinder. This will also necessitate fitting 4-clyinder
>>propshafts.
>>
>>2. leave the gearbox x-member in place, and weld the 4pot engine
>>mounts onto the chassis in the place where the 4-pot will sit once it
>>is fitted. The engine will be further back in the chassis than normal,
>>which will mean you have to retain the 6-pot bulkhead but can also
>>keep the 6-pot props.
>>
>>Alex
>
>Take more water with it Alex ;0) The OP is swaping the box not the
>engine :0)
>
>But sound advice for anyone sticking a 4 pot in a 6 pot hole none the
>less.
>
>>>>theres just a couple of 4 cylinder boxs going cheap, and if i decide to
>>>>do any engine swap, will probably swap it for a 4cylinder or holden motor
>>>>which are easier to mate up with the 4 cylinder box.

Whassat then?



Alex

Alex

> >>Six-pot gearbox moutings are in a different place to 4-pot. The
> >>gearbox x-member which carries the mountings is further back, to
> >>accomodate the longer engine. The propshafts are correspondingly
> >>different lengths. If you fit a 4-cylinder then you have two options.
> >>
> >>1. remove the engine mounts and fit 4-cylinder engine mounts in the
> >>correct place for a 4-pot, and move the gearbox x-member forward to
> >>accomodate. The engine/gearbox will then be in the same place as an
> >>original 4-clyinder. This will also necessitate fitting 4-clyinder
> >>propshafts.
> >>
> >>2. leave the gearbox x-member in place, and weld the 4pot engine
> >>mounts onto the chassis in the place where the 4-pot will sit once it
> >>is fitted. The engine will be further back in the chassis than normal,
> >>which will mean you have to retain the 6-pot bulkhead but can also
> >>keep the 6-pot props.
> >>
> >>Alex
> >
> >Take more water with it Alex ;0) The OP is swaping the box not the
> >engine :0)
> >
> >But sound advice for anyone sticking a 4 pot in a 6 pot hole none the
> >less.
> >
> >>>>theres just a couple of 4 cylinder boxs going cheap, and if i decide
to
> >>>>do any engine swap, will probably swap it for a 4cylinder or holden
motor
> >>>>which are easier to mate up with the 4 cylinder box.
>
> Whassat then?
>
>
>
> Alex
>
> Alex

alright fellas, no need to fight. anyway, thanks for the advice. the main
thing i wanted to know is wether the different position of the transmission
was achieved by a modified chassis, or a modified g/box. and from what i can
gather is it's a different chassis. so the 4 cylinder transmission will bolt
directly into the 6 cylinder chassis, regardless of wether or not the motor
can.

Thanks guys.

Sam.