Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

MQ SWB Diff ratios - HELP

Tech Talk for Nissan owners.

Moderators: toaddog, V8Patrol

Forum rules
Post Reply
Posts: 5
Joined: Wed Jul 08, 2009 8:01 pm
Location: Mandurah WA

MQ SWB Diff ratios - HELP

Post by boatmadmaniac »

Hi there all!

Im Callum, a newby to this particular forum. Im busy doing an SD33 conversion into a L28 SWB MQ 86' model. The engine (SD33) that Im using is from another MQ SWB but an 83' model.

Im chasing information on Diff ratio's. Both are 4 speed.

Diff ratio for the L28 SWB MQ 86' ..................
and
Diff ratio for the SD33 MQ SWB but an 83' ..................

Cheers cobba's
Look forward to any info.
Regards boatmadmaniac
Top
Posts: 166
Joined: Mon Jan 07, 2008 9:34 pm
Location: Maitland

Post by dave_str »

I am pretty sure the L28 runs 4.6 gears.

I think the SD33 runs the same.

MKPatrol will be good for the answer though.

Dave.
2006 STR Navara with lots of goodies, just need a V6 front diff and a locker.
Top
Posts: 5462
Joined: Fri Dec 20, 2002 1:29 pm
Location: Boomba

Post by WICKED »

my 84 SD33-T SWB runs 4.3's
Buds Customs : Street, Track & Trail - Parts & Fabrication - Nissan, Toyota, Custom D60 gear
http://www.facebook.com/budscustoms
Top
Posts: 278
Joined: Fri Nov 30, 2007 4:14 pm
Location: bunbury

Post by troopy94 »

I have a few mq diffs here and have found na sd33 were 4.6 ratio and so are l28 petrols and only the turbo sd33 was 4.3 ratio
Top
Posts: 5
Joined: Wed Jul 08, 2009 8:01 pm
Location: Mandurah WA

Post by boatmadmaniac »

Hi there all,

thanks for the feedback. Much appreciated. So it sounds as though the SD33 and L28's had the same diff? Kinda makes sence to with respects to the SD33T that has 4.3's as this would aid with creating more torque down low.
Top
Posts: 1090
Joined: Mon Jun 02, 2003 6:58 pm
Location: Hobart

Contact:
Contact DR Frankenstine

Post by DR Frankenstine »

troopy94 wrote:I have a few mq diffs here and have found na sd33 were 4.6 ratio and so are l28 petrols and only the turbo sd33 was 4.3 ratio
correct
Remember some days your the pigeon and other days your the statue
Top
Posts: 126
Joined: Sun Jul 20, 2008 6:57 pm
Location: Frankston

Post by SWBMQCraig »

I have a 81 SD33 and it has 4.1 diffs.. the L28 will be 4.625 tho!

Craig
Top
Posts: 5
Joined: Wed Jul 08, 2009 8:01 pm
Location: Mandurah WA

Post by boatmadmaniac »

Now Im getting two different answers! There can only be one answer surley...... My gregory's manual doesnt list a 4.1 only 4.625's and 4.8's.

Does anyone know for sure what the diff ratios in the L28 SWB MQ 86' are
and Diff ratio for the SD33 MQ SWB but 83' ..................

Cheers
Top
User avatar
V8Patrol
God of Magnificant Ideas!
Posts: 6774
Joined: Mon Aug 04, 2003 11:22 am
Location: Balls Deep

Post by V8Patrol »

all you'll ever need to know about MQ's and MK patrols is at......

http://www.outerlimits4x4.com/ftopic104473.php



Diff Ratios:
http://www.outerlimits4x4.com/viewtopic.php?t=31914
http://www.outerlimits4x4.com/viewtopic.php?t=18659
http://www.outerlimits4x4.com/viewtopic.php?t=23410
http://www.outerlimits4x4.com/viewtopic.php?t=28205


Moved from GenTec

Kingy
[color=blue][size=150][b]And your cry-baby, whinyassed opinion would be.....? [/b][/size][/color]
Top
Posts: 5
Joined: Wed Jul 08, 2009 8:01 pm
Location: Mandurah WA

Post by boatmadmaniac »

Today I jacked up one of the rear wheels on the wreck of which I got the SD33 out of. I marked the wheel and a spot on the drive flange and turned the flange and counted how many turns made the wheel rotate once. I found it to be approx 2 1/3 turns.

Did the same with the L28. Marked it, spun the flange, also 2 1/3 turns.

These must be the same ratio diffs then?
Top
Posts: 11
Joined: Mon Oct 06, 2008 7:45 am
Location: adelaide

Post by jacko394 »

repeat the test but rotate over 10 revolutions,will give a more accurate reading than 2 and a bit.Always ensure rear axle is on axle stands on a level surface and both front wheels are chocked front/rear before you get under car to spin rear prop.Reckon you'd have 4.625's.Cheers,Mark.
Top
Post Reply

Return to “Nissan”

Who is online

Users browsing this forum: No registered users and 127 guests