BritishV8 Forum: Re: New type Locker/Limited Slip

Moderator
Curtis Jacobson
Portland Oregon
(4577 posts)

Registered:
10/12/2007 02:16AM

Main British Car:
71 MGBGT, Buick 215

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Re: New type Locker/Limited Slip

Posted by: Moderator
Date: January 07, 2010 09:43PM

Quote:
Remember the MGB 67-80 Salisbury tube type only has the Quaffe(very expensive) LSD available for it.

Sorry guys, I'm having a hard time keeping up with all the activity around here.

Here's another company that makes limited slip differentials for the MGB. They're not a low-cost option, but if someone were determined to keep their Salisbury and they didn't want a Quaife... I know a couple people who are using Tran X differentials in smaller race cars such as MG Midgets.

Tran X plate type LSD for the MG Salisbury axle.
(Read the fine print. The title says "MGC", but the fine print clarifies that they work for MGB too.)

This page explains the theory of operation.

Notice that these are adjustable, and can also be bought for MGB with four different initial settings.

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

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Re: New type Locker/Limited Slip

Posted by: MGBV8
Date: January 09, 2010 11:05AM

You're right Curtis, at $1240 + shipping to the USA, that is definitely not a low-cost option. I'm pretty sure I could build a Chevy or Ford rear for less than that.

I was hoping we might stumble upon something reasonable that would work in the Salisbury.

roverman
Art Gertz
Winchester, CA.
(3188 posts)

Registered:
04/24/2009 11:02AM

Main British Car:
74' Jensen Healy, 79 Huff. GT 1, 74 MGB Lotus 907,2L

Re: New type Locker/Limited Slip

Posted by: roverman
Date: January 09, 2010 11:35AM

Com'n folks, We know how this works. Feed us some "dimensions". What's the "diff"? Then we scrounge. roverman.

v8ian
ian stewart
just north of London, United Kingdom, Planet Earth
(54 posts)

Registered:
12/24/2009 04:06PM

Main British Car:
67 Ford Cortina 3.9ltr Rover

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Re: New type Locker/Limited Slip

Posted by: v8ian
Date: January 09, 2010 12:52PM

Just as another thing to throw into the mix, I use a mid 80s Toyota Celica LSD axle, the shafts are bigger than 8" fords, and IIRC the outer bearings are the same too, possibly the Toyota PCD is the same as MG, Supposedly good for 600hp on slicks, mine has never let me down and its ad PLENTY of abuse

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

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Re: New type Locker/Limited Slip

Posted by: MGBV8
Date: January 10, 2010 10:38AM

Well, mine's all together under the car AND the garage is cold! Hmmm, maybe at Pete's next weekend.....

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New type Locker/Limited Slip

Posted by: mgb260
Date: January 10, 2010 10:16PM

I'll call Randy's Ring and Pinion Monday to see if the locker idea is feasable.$300 is about average price.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New type Locker/Limited Slip

Posted by: mgb260
Date: January 11, 2010 06:09PM

Randy's referred me to Richmond Gear(Lock-Rite) tech line. I left a message and haven't heard back yet.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New type Locker/Limited Slip

Posted by: mgb260
Date: January 12, 2010 01:51PM

On related news, I contacted Moser on the feasability of one piece axles like they do for Jeeps. They said they would need an axle to look at and expected the price to be $345 a pair. Now that sounds like a deal to me! If this locker idea works (I'm thinking Dana 35 as it is closer to the same size)the next thing would be a 3.31 ring and pinion supplier.

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

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Re: New type Locker/Limited Slip

Posted by: BlownMGB-V8
Date: January 13, 2010 11:49AM

D-35 should be awfully close, and with the Moser axles matching the splines will be no problem. Plenty of posi and gear choices available for those I think. There is a pretty good range of bearings available also. I have the Timken bearing selection software and also a bearing interchange manual so let me know the mesurements and I can see what bearings will work.

Jim

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New type Locker/Limited Slip

Posted by: mgb260
Date: January 13, 2010 01:44PM

Jim, I was still using the MGB gears,just replacing the spider gears with the 4X4 locker. The AMC 20 rear has the same splines as MGB so; those side gear plates with the Dana 35 Lock-rite in MGB case. The Moser axles would be 29 spline also; so direct swap for MGB.I was going to contact Yukon and U.S. Gear to see if they could manufacture a new MGB ring and pinion in 3.31 ratio.

Edited 1 time(s). Last edit at 01/13/2010 02:37PM by mgb260.

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New type Locker/Limited Slip

Posted by: mgb260
Date: January 13, 2010 09:59PM

Pictures comparing Dana 35 and MGB Salisbury (Tube type) diffs.Also 2 Dana 30 pics, one with a locker. Both Dana 35 and MGB are partialy dissasembled. Dana 35 carrier looks wider, maybe Dana 30 locker might fit in there better:

Edited 2 time(s). Last edit at 01/13/2010 10:30PM by mgb260.

dhen
Darian Henderson
San Antonio, TX
(12 posts)

Registered:
07/18/2008 10:41PM

Main British Car:
1962 MGA CA18DET

Re: New type Locker/Limited Slip

Posted by: dhen
Date: May 27, 2013 11:42AM

I know this thread is very old, but did anyone find out if a Dana 30 worked?

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

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Re: New type Locker/Limited Slip

Posted by: MGBV8
Date: January 08, 2015 02:29PM

Inquiring minds want to know. :)

We can now get 3.31 MGB gears. We now need an affordable posi.

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar

Re: New type Locker/Limited Slip

Posted by: BlownMGB-V8
Date: January 08, 2015 05:56PM

Seems like someone was working on that... D44 adaptation or something maybe?

Jim

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar

Re: New type Locker/Limited Slip

Posted by: MGBV8
Date: April 29, 2015 05:33PM

Bump. I want a posi! :)

NCtim
Tim Shumbera
Western North Carolina
(239 posts)

Registered:
01/19/2012 04:35PM

Main British Car:

Re: New type Locker/Limited Slip

Posted by: NCtim
Date: April 30, 2015 04:15PM

More bumps. So the the Gr8grip deal was poo-pooed out of contention?

Tim

BlownMGB-V8
Jim Blackwood
9406 Gunpowder Rd., Florence, KY 41042
(6469 posts)

Registered:
10/23/2007 12:59PM

Main British Car:
1971 MGB Blown,Injected,Intercooled Buick 340/AA80E/JagIRS

authors avatar

Re: New type Locker/Limited Slip

Posted by: BlownMGB-V8
Date: May 01, 2015 08:35AM

What was that posi that That Perry put in his MGB axle?

Jim

mgb260
Jim Nichols
Sequim,WA
(2463 posts)

Registered:
02/29/2008 08:29PM

Main British Car:
1973 MGB roadster 260 Ford V8

Re: New type Locker/Limited Slip

Posted by: mgb260
Date: May 01, 2015 09:33AM

Jim, He used a spool.

MGBV8
Carl Floyd
Kingsport, TN
(4512 posts)

Registered:
10/23/2007 11:32PM

Main British Car:
1979 MGB Buick 215

authors avatar

Re: New type Locker/Limited Slip

Posted by: MGBV8
Date: May 01, 2015 10:31AM

[forum.britishv8.org]

mstemp
Mike Stemp
Calgary, Canada
(222 posts)

Registered:
11/25/2009 07:18AM

Main British Car:
1980 MGB Rover 4.6L

Re: New type Locker/Limited Slip

Posted by: mstemp
Date: May 01, 2015 03:19PM

So the later MGB use a Salisbury diff do they not? Been years since I had my MGB diff apart, how many splines do the axles have? Looks like 25 based on web but......

I found this while reviewing Perry's 9" spool into an MGB diff. Its for a Land Rover 1985 and older with 24 spline axles.

[www.drivetrainshop.com]

Any chance this has any potential?

Mike

Edited 2 time(s). Last edit at 05/01/2015 03:49PM by mstemp.

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