Fordmods Logo

Different Diff Types Explained 

 

Page 7 of 14 [ 203 posts ] Go to page Previous  1 ... 4, 5, 6, 7, 8, 9, 10 ... 14  Next

 
Posted: Sat May 24, 2008 11:19 am 
Stock as a Rock
Offline
User avatar

Age: 49

Posts: 155

Joined: 12th Jun 2006

Gallery: 5 images

Ride: Falcon

Location: LA LA LAND
VIC, Australia

I have an EF I6 GLI so I think I have a 3.08 or 3.23.
Call up a shop in Preston, one listed earlier and if I wanted to get built a 3.45 or 3.7 lsd, drive in drive out $1650 so I ask if there is a warranty?
There isn't one because its a performance item.
No warranty= no sale

 

_________________

Don't bug me unless you have chocolate or a cure for PMT

Top
 Profile  
 
 
 Post subject: Almost started new topic, ALMOST. 1990 LTD LSD into EF Wagon
Posted: Fri Jun 20, 2008 10:35 pm 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 2500

Joined: 22nd Apr 2007

Gallery: 5 images

Ride: DENTED UP OLD AUT WAGON

Location: Wellington
New Zealand

Oh shheeeez, here I am with a new brain wave... I have endless troubles with sqweeks and rattles and the like. If worse comes to worse I was going to put the Fairmont diff and brakes onto the Futura, along with shocks and any bushes that need renewing whilst I have it apart.

I have found this item for sale - $200NZ and have a funny feeling it could be too much effort...

Image

FORD LTD 1990 LSD DIFF DISC TO DISC

It comes disc to disc with munro gas air shocks and drive shaft.
The brake lines have been cut --- But what do I care?!!!



I know it is a sedan and as such it has SPRINGS, not leafs... I want to know if anyone has done this before, if there's a cheap way of getting LSD into my wagon, I am into it. Know people who weld and I own a decent 180mm angle grinder so could take off whatever the springs connect to and put the leaf springs U-BOLTS over the axle instead...

Sure, it's stockstandard... No, havn't changed nothing... wrote:
As long as you get the same spline center you keep your axels. NF will have 28 spline. Get an LSD center from an ED or later and you should be safe (ford played silly buggers with 25 spline centers in ea/eb).


You see - I couldn't just use the LSD centre from the EA LTD and attach axles from donor EF Fairmont Wagon and then put the lot onto my EF Futura Wagon... Hmmm... This car is getting mind boggling!...

So far the whole thing has cost less than $2000NZ so not doing too bad.

Or, I could get a xa,b,c lsd diff for less money, if that'd be easier!?!
Top
 Profile  
 
 
Posted: Sun Jun 22, 2008 8:01 pm 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 2500

Joined: 22nd Apr 2007

Gallery: 5 images

Ride: DENTED UP OLD AUT WAGON

Location: Wellington
New Zealand

Tocchi wrote:
to test if you have LSD... if you jack up the rear of the car, and spin one wheel one way...
which way should the other wheel spin?


The same way?

Or, perhaps even stay close to stationary if you've got a squeeky wheel... <ahem>
Top
 Profile  
 
 
Posted: Sat Sep 06, 2008 10:51 am 
Parts Gopher
Offline

Posts: 69

Joined: 24th Aug 2008

Location: Sydney
NSW, Australia

I skipped a bit of this thread.

Was the difference between full spool and mini spool drive shafts explained?

They are different
Top
 Profile  
 
 
Posted: Tue Sep 30, 2008 7:51 pm 
Oompa Loompa
Offline

Posts: 39

Joined: 24th Sep 2008

Location: Ballarat
VIC, Australia

9" lsd with 4.1 auburn gears is a good street combo
Top
 Profile  
 
 
Posted: Wed Oct 29, 2008 6:49 am 
Fordmods Newbie
Offline

Posts: 16

Joined: 27th Oct 2008

Location: lake munmorah
NSW, Australia

Hi all
can anyone tell me if the diff in a xf interchangable with au series?
thanks
Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Mon Apr 20, 2009 12:47 pm 
Getting Side Ways
Offline

Age: 115

Posts: 927

Joined: 27th Sep 2007

Location: Adelaide
SA, Australia

Hypoid and Amboid differentials??? what does this mean????Didnt hear it mentioned so i thought id throw it in the mix 8-)

 

_________________

165 Killer Wasps all packaged in a green kmart car, almost an explorer in a way...

Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Mon Apr 20, 2009 2:41 pm 
Getting Side Ways
Offline

Age: 57

Posts: 914

Joined: 22nd Mar 2005

Gallery: 1 images

Location: FNQ
QLD, Australia

Anyone looking to change from 3.08 to a shorter diff ratio (ie. 3.23, 3.27, 3.45, 3.7) - I'd personally recommend going to 3.7 - I went from 3.08 to 3.45 and to be blunt noticed very little difference in off the line performance - it was a waste of time and money.... With 3.08 you'll be on 2000rpm at 100kph - and with 3.45 that will go to a tad over 2200rpm at 100kph (that's in 4th Manual AND 4th Auto). So I guess 3.7 would take you to a bit over 2400rpm which is much better IMO and would be much more driveable and perform better.

 

_________________

Sold the Greenmachine - now driving 2015 Jeep Cherokee Trailhawk.

Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Mon Apr 20, 2009 3:11 pm 
Getting Side Ways
Offline

Age: 36

Posts: 2563

Joined: 19th Feb 2007

Gallery: 21 images

Ride: 98 EL Futura

Power: 199 rwkw

Location: Lilydale
VIC, Australia

yeah i have been looking for a 3.7 diff gears. My 3.08 does 1700-1800rpm at 100k's and its auto

 

_________________

EL Futura: CVE head, Wolf V500, ICE Ignition and Coil, 36lb injectors, Walbro 255lb, Paci comps, 3" exhaust, T5, Harrop Truetrac with 3.9s. Now with 198.9rwkw, (~185rwkw and 13.80 @99.1mph) with more power to come

Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Tue Apr 21, 2009 12:12 am 
Getting Side Ways
Offline
User avatar

Age: 35

Posts: 4316

Joined: 30th Oct 2006

Gallery: 18 images

Ride: Envi EF

Location: Grafton
NSW, Australia

Greenmachine wrote:
With 3.08 you'll be on 2000rpm at 100kph - and with 3.45 that will go to a tad over 2200rpm at 100kph (that's in 4th Manual AND 4th Auto). So I guess 3.7 would take you to a bit over 2400rpm which is much better IMO and would be much more driveable and perform better.


??

Wrong.

With 3.23s and a T5 its 2000rpm @ 100km
With 3.45s and a T5 its 2200rpm @ 100km
In fifth.

In 4th your nearly at 3000rpm at 100km with 3.45s.

Auto is about 2k @ 1000 with 3.45s.

 

_________________

>>>EF Futura T build<<<

Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Tue Apr 21, 2009 8:08 am 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 2500

Joined: 22nd Apr 2007

Gallery: 5 images

Ride: DENTED UP OLD AUT WAGON

Location: Wellington
New Zealand

I agree with Krisis to an extent (as typical of me and him...)

Only thing to debate is that T5's actually could have a different fifth gear.

Fourth gear is pretty much always 1:1, but there are different fifths. I have a 3.23 diff and a T5. I do over 2000 at 100km and am actually looking at finding some 3.08 or even dropping into the two's purely for the economy when cruising...

Reasonably happy with the 3.23 for everything else mind you.

Once the auto locks up in top gear you should do way better than 2200rpm at 100kph Green Machine. I certainly got a lot lower rev's than that at the same speed with 3.23, and at 2200 I seem to remember being closer to 125 than 100. Maths isn't my strong point admittedly, but I'd still guess 3.45 with auto being lower RPM than what you suggest.
Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Tue Apr 21, 2009 9:00 am 
Getting Side Ways
Offline

Posts: 6113

Joined: 8th May 2007

a couple "ratio versus revs" ive found in my car

EA T5 (0.78 5th gear)........ 3.73 diff....2450rpm @ 100kph
BTR Auto (0.68 overdrive)... 3.73 diff....2100rpm @ 100kph
BTR Auto (0.68 overdrive)... 4.11 diff....2300rpm @ 100kph


Also a calculator that is pretty accurate in guessing rpm's in any given gear at any revs
http://www.angelfire.com/fl/procrastination/rear.html

will need these two calcs to help fill in the blanks....
http://www.miata.net/garage/tirecalc.html
http://www.eforecourt.com/mph_kph_speed_convert.htm
Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Tue Apr 21, 2009 10:37 am 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 2500

Joined: 22nd Apr 2007

Gallery: 5 images

Ride: DENTED UP OLD AUT WAGON

Location: Wellington
New Zealand

I meant to say that depending on the T5 you have there are actually different fifth gears from manufacturer, and also someone may have put different gears into the box before your purchase of said box anyway.

I am damn sure my auto was a lot taller in locked up fourth than the T5 is in fifth.
Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Tue Apr 21, 2009 10:54 am 
Getting Side Ways
Offline

Posts: 6113

Joined: 8th May 2007

EA - EBI T5 6cyl .... 0.78 5th gear

EB II - EL T5 6cyl..... 0.72 5th gear
Top
 Profile  
 
 
 Post subject: Re: Different Diff Types Explained
Posted: Tue Apr 21, 2009 11:01 am 
Getting Side Ways
Offline
User avatar

Age: 50

Posts: 2500

Joined: 22nd Apr 2007

Gallery: 5 images

Ride: DENTED UP OLD AUT WAGON

Location: Wellington
New Zealand

I definately have the lower geared of the two, and the Tremec guy suggested they also did an 0.84 or 0.86 or something... I never got back to him with the numbers off the box, so he never actually looked it up.

All good, thanks for the info. It could probably do with a much higher fifth and then putting in a diff of 4:1 with the LSD! :wink:
Top
 Profile  
 
Display posts from previous:
Sort by  
 Page 7 of 14  [ 203 posts ]  Go to page Previous  1 ... 4, 5, 6, 7, 8, 9, 10 ... 14  Next

Who is online

Users browsing this forum: No registered users and 52 guests


You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot edit your posts in this forum
You cannot delete your posts in this forum
You cannot post attachments in this forum

 

 

It is currently Fri Nov 15, 2024 5:44 pm All times are UTC + 11 hours

 

 

(c)2014 Total Web Solutions Australia - Australian Web Hosting and Domain Names