How to tell a dana 30 gear ratio?
fish
you probally all think i am nuts over here at the 4x4 groupe, seeing as
i drive a Volvo Wagon. but if you give me a second of your time you will
see we have alot in common. i have a dire need for traction as my car is
really pushing alot of boost(garret t-3 turbo), over 20psi, i have so
much power that i am loosing lots of speed to a major factor of
traction.
this is where the good ole' american Jeep comes into the picture, see
our common is that both my Volvo Wagon and your Jeeps both have a Dana
30 axle in them! i'll bet no one here knew that! Jeeps is in the front
axle Dana 30 and volvo wagon rear axle dana 30
see my Wagon, she has a Dana 30 rear axle, made in Sweeden under license
from Dana Corp. they can be swapped from one to another, Volvo e' Jeepo.
Problem with the Volvo Dana is it is an open axle design, more commonly
known as a "one legger!", i leave a good 60ft of rubber if i throttle
her good. your jeep dana 30 are LSD design(limited slip) with power to
both wheels, probally 60/40 type of power spilt to each rear tire.
so my plan is to locate and idenitfy a Dana 30 LSD from a jeep, i don't
want or need the whole axle, i just need the carrier and guts, but i
need it in 3.73 ratio so i wont have to swap out my pinion and this
makes things hell of alot easyer to just swap the "cage" of carrier and
guts in 3.73 gear .
looking for a way to ID the gear ratio on dana 30 from front axle of a
jeep, i am looking for 3.73 raito, where are the markings and how do i
know. can i tell by looking at the carrier or the axle houseing?
if you want to look at my Volvo home page, welcome over, i have alot of
"shadetree mods" that i experemented with my-self and have added about
100 horse power to my Wagon for about $200 bucks. i have used parts from
Saab 900, VW Wabbits and Golf, Chevy Ciation, and big rig diesels in my
quest for more speed and would be quite proud to add a Jeep part to my
Volvo!
BTW when i was 19 years young i had purchased a used cj-5 v-8 renagade
demin blue ,rag top and drove/kept it around till i lent it to my
brother and he rolled it at 25mph, then we fixed it with a fibergalss
body and drove it more......then frame rails it rusted to bits and also
the brake and fuel lines all rusted along side the rusty frame and the
gas tank rusted. long island beaches are saltey! parted it out, probally
had my dana 30 in it!
help me with my dana 30 ID queestion, thanks in advance!
--
Dino Pinch, roslyn ny, pioneering the use of Jeep parts is modifyed
sweedish station wagons
email fi...@liii.com
1986 Volvo 760 wagon
139k miles
daily driver
set-up now 20 1/2psi at the throttle body
4 extra injectors
riseing rate fuel pressure regulator
no cat
14.5 deg. bdtc
$60 custom exhaust
air box mod
wood in the springs
updated, now fast downloading: http://www.liii.com/~fish/volvo.html
David McCaffrey
fish <fi...@liii.com> wrote:
> hey every one,
>
> you probally all think i am nuts over here at the 4x4 groupe, seeing
as
> i drive a Volvo Wagon. but if you give me a second of your time you
will
> see we have alot in common. i have a dire need for traction as my car
is
> really pushing alot of boost(garret t-3 turbo), over 20psi, i have so
> much power that i am loosing lots of speed to a major factor of
> traction.
>
> this is where the good ole' american Jeep comes into the picture, see
> our common is that both my Volvo Wagon and your Jeeps both have a Dana
> 30 axle in them! i'll bet no one here knew that! Jeeps is in the front
> axle Dana 30 and volvo wagon rear axle dana 30
>
You're right ... I didn't know that. I'll have to keep that in mind
if I'm ever looking for front axle parts.
> see my Wagon, she has a Dana 30 rear axle, made in Sweeden under
license
> from Dana Corp. they can be swapped from one to another, Volvo e'
Jeepo.
>
> Problem with the Volvo Dana is it is an open axle design, more
commonly
> known as a "one legger!", i leave a good 60ft of rubber if i throttle
> her good. your jeep dana 30 are LSD design(limited slip) with power to
> both wheels, probally 60/40 type of power spilt to each rear tire.
>
Um ... no they aren't. The front axle on all stock Jeeps is also an
open diff design. The LSD is sometimes put on the rear Dana 35 from
the factory (if special ordered). The only way you'd find an LSD
front diff is if someone modified the Jeep. And those would be few
and far between ... most people put a true locker in.
> so my plan is to locate and idenitfy a Dana 30 LSD from a jeep, i
don't
> want or need the whole axle, i just need the carrier and guts, but i
> need it in 3.73 ratio so i wont have to swap out my pinion and this
> makes things hell of alot easyer to just swap the "cage" of carrier
and
> guts in 3.73 gear .
>
> looking for a way to ID the gear ratio on dana 30 from front axle of
a
> jeep, i am looking for 3.73 raito, where are the markings and how do i
> know. can i tell by looking at the carrier or the axle houseing?
>
Finding a Jeep D30 with 3.73 gears won't be easy. For most of the
years of production, that wasn't a factory installed ratio. The
factory used 3.07, 3.55 and 4.10 ratios. Some of the newer (97+)
Jeep wranglers come with 3.73 ratios if ordered with manual trans,
D44 rear axle, and 30" tires. That'd be your only hope in finding
that particular ratio ... and it still probably would be an open
diff.
If you already have the 3.73 gears in your Volvo, you could also use
the guts out of a 4.10 ratio D30. They share the same carrier as the
3.73. Those are easier to find. They were installed on all 2.5L
4-cyl Wranglers with the manual transmission. You'd have to use your
old ring/pinion gears. It'd still be next to impossible to find one
with a LSD.
Your best bet would probably be to buy an after-market LSD (or locker)
and install that into your Volvo.
David
Sent via Deja.com http://www.deja.com/
Before you buy.
Rob Owens
available (and possibly limited slip diffs) that don't require messing w/
the
gear backlash and all that when installing them. one of them is called
"easy
locker". you could buy one for about $300 new and then you wouldn't have to
search the junkyards for a rear end that has the same ratio as yours.
-rob
>===== Original Message From fish <fi...@liii.com> =====
>hey every one,
>
>you probally all think i am nuts over here at the 4x4 groupe, seeing as
>i drive a Volvo Wagon. but if you give me a second of your time you will
>see we have alot in common. i have a dire need for traction as my car is
>really pushing alot of boost(garret t-3 turbo), over 20psi, i have so
>much power that i am loosing lots of speed to a major factor of
>traction.
>
>this is where the good ole' american Jeep comes into the picture, see
>our common is that both my Volvo Wagon and your Jeeps both have a Dana
>30 axle in them! i'll bet no one here knew that! Jeeps is in the front
>axle Dana 30 and volvo wagon rear axle dana 30
>
>see my Wagon, she has a Dana 30 rear axle, made in Sweeden under license
>from Dana Corp. they can be swapped from one to another, Volvo e' Jeepo.
>
>Problem with the Volvo Dana is it is an open axle design, more commonly
>known as a "one legger!", i leave a good 60ft of rubber if i throttle
>her good. your jeep dana 30 are LSD design(limited slip) with power to
>both wheels, probally 60/40 type of power spilt to each rear tire.
>
>so my plan is to locate and idenitfy a Dana 30 LSD from a jeep, i don't
>want or need the whole axle, i just need the carrier and guts, but i
>need it in 3.73 ratio so i wont have to swap out my pinion and this
>makes things hell of alot easyer to just swap the "cage" of carrier and
>guts in 3.73 gear .
>
>
>looking for a way to ID the gear ratio on dana 30 from front axle of a
>jeep, i am looking for 3.73 raito, where are the markings and how do i
>know. can i tell by looking at the carrier or the axle houseing?
>
AlanR
in Grand Cherokees so that isn't a problem. However, because they were used
up front there wasn't an LSD option for them.
There is normally a small tag attached to one of the cover bolts, unless
someone has opened it up previously and lost the tag. This will have the
ratio number.
Don't be tempted to buy a Lock-Rite or EZLocker or anything else that says
Locker. These are not suitable for road use in winter conditions. I think
you are going to have to buy a new carrier, unless you see one come up for
sale in the group.
Alan R
95 ZJ
fish <fi...@liii.com> wrote in article <38435FF9...@liii.com>...
> hey every one,
>
> you probally all think i am nuts over here at the 4x4 groupe, seeing as
> i drive a Volvo Wagon. but if you give me a second of your time you will
> see we have alot in common. i have a dire need for traction as my car is
> really pushing alot of boost(garret t-3 turbo), over 20psi, i have so
> much power that i am loosing lots of speed to a major factor of
> traction.
>>>> snip<<<<
> so my plan is to locate and idenitfy a Dana 30 LSD from a jeep, i don't
> want or need the whole axle, i just need the carrier and guts, but i
> need it in 3.73 ratio so i wont have to swap out my pinion and this
> makes things hell of alot easyer to just swap the "cage" of carrier and
> guts in 3.73 gear .
>
>
> looking for a way to ID the gear ratio on dana 30 from front axle of a
> jeep, i am looking for 3.73 raito, where are the markings and how do i
> know. can i tell by looking at the carrier or the axle houseing?
>
>>> snip<<<<
>
Jim Hale
Jeeps.
Tractech makes a gear driven limited slip for the Dana 30 that costs
between $350 & $400 US. The website for them is www.tractech.com .
Jim
fish wrote in message <38435FF9...@liii.com>...
>hey every one,
>
>you probally all think i am nuts over here at the 4x4 groupe, seeing
as
>i drive a Volvo Wagon. but if you give me a second of your time you
will
>see we have alot in common. i have a dire need for traction as my car
is
>really pushing alot of boost(garret t-3 turbo), over 20psi, i have so
>much power that i am loosing lots of speed to a major factor of
>traction.
>
>this is where the good ole' american Jeep comes into the picture, see
>our common is that both my Volvo Wagon and your Jeeps both have a
Dana
>30 axle in them! i'll bet no one here knew that! Jeeps is in the
front
>axle Dana 30 and volvo wagon rear axle dana 30
>
>see my Wagon, she has a Dana 30 rear axle, made in Sweeden under
license
>from Dana Corp. they can be swapped from one to another, Volvo e'
Jeepo.
>
>Problem with the Volvo Dana is it is an open axle design, more
commonly
>known as a "one legger!", i leave a good 60ft of rubber if i throttle
>her good. your jeep dana 30 are LSD design(limited slip) with power
to
>both wheels, probally 60/40 type of power spilt to each rear tire.
>
>so my plan is to locate and idenitfy a Dana 30 LSD from a jeep, i
don't
>want or need the whole axle, i just need the carrier and guts, but i
>need it in 3.73 ratio so i wont have to swap out my pinion and this
>makes things hell of alot easyer to just swap the "cage" of carrier
and
>guts in 3.73 gear .
>
>
>looking for a way to ID the gear ratio on dana 30 from front axle of
a
>jeep, i am looking for 3.73 raito, where are the markings and how do
i
>know. can i tell by looking at the carrier or the axle houseing?
>
BobsGL1500
>in Grand Cherokees so that isn't a problem. However, because they were used
>up front there wasn't an LSD option for them.
>There is normally a small tag attached to one of the cover bolts, unless
>someone has opened it up previously and lost the tag. This will have the
>ratio number.
>
>Don't be tempted to buy a Lock-Rite or EZLocker or anything else that says
>Locker. These are not suitable for road use in winter conditions. I think
>you are going to have to buy a new carrier, unless you see one come up for
>sale in the group.
>
I noticed on my 2000 Jeep Grand Cherokee
that it has the gear ratio stamped onto the housing right along side of the
differential cover.
Jerry Bransford
very best LSDs around...
Jerry
--
Jerry Bransford
PP-ASEL KC6TAY C.A.P.
The Zen Hotdog... make me one with everything!