New type Locker/Limited Slip

mgb260 · January 10, 2010, 10:16:38 PM

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

mgb260 · January 11, 2010, 06:09:19 PM

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

mgb260 · January 12, 2010, 01:51:25 PM

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 · January 13, 2010, 11:49:25 AM

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 · January 13, 2010, 01:44:34 PM

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.

mgb260 · January 13, 2010, 09:59:39 PM

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:
dana 35.jpg

dhen · May 27, 2013, 11:42:58 AM

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

MGBV8 · January 08, 2015, 02:29:46 PM

Inquiring minds want to know.

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

BlownMGB-V8 · January 08, 2015, 05:56:42 PM

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

Jim

MGBV8 · April 29, 2015, 05:33:55 PM

Bump. I want a posi!

NCtim · April 30, 2015, 04:15:11 PM

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

Tim

BlownMGB-V8 · May 01, 2015, 08:35:30 AM

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

Jim

mgb260 · May 01, 2015, 09:33:52 AM

Jim, He used a spool.

MGBV8 · May 01, 2015, 10:31:42 AM

http://forum.britishv8.org/read.php?6,44299,page=2

mstemp · May 01, 2015, 03:19:39 PM

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.

http://www.drivetrainshop.com/Detroit_TrueTrac_p/eat-912A593.htm

Any chance this has any potential?

Mike

mgb260 · May 01, 2015, 05:15:48 PM

Mike, Yes, 25 spline. The earlier info in this thread on 29 splines is wrong. Misinformation. The only axle I found with 25 splines was the Chrysler 7.25. Common in A bodies behind small block and slant six motors and early Dakota pickups. There was a Sure Grip clutch type posi available for it. I was thinking about the Dana Super 30. It uses 30 spline side gears so you can use Dana 44 Jeep axles. Sort of a Hybrid. Whoops, looks like the Dana 30 uses 10 bolts to mount the ring gear unlike the Dana 27, Chrysler 7.25 and MGB which use 8.

mstemp · May 01, 2015, 05:28:27 PM

Never mind.
Based on Quaife dimensions they are not even close.
I keep on coming back to a $3K diff from Moser or Currie! That gets me the 4x100mm wheels bolt pattern, wilwood 11" discs, etc.
Before everyone says narrow one locally, things cost more here! Comes out close to the same and quality can be.............

MGBV8 · May 05, 2015, 03:35:57 PM

QuoteSo the the Gr8grip deal was poo-pooed out of contention?

I guess so. Many of us are very skeptical about it.

I keep thinking there has got to be something that is close enough to tweak a bit. How about that Dana 27 that can be made to fit the Banjo rear. Can it be made to fit the Salisbury???

mgb260 · May 05, 2015, 05:24:31 PM

Carl, I'm thinking that is a possibility. The only problem is you have to find a used case and the 10 spline axle side gears. All the clutches and internals are available new(same as Dana 30). The Dana 30 is the same except 10 mounting holes instead of 8 and 27 spline axle side gears. The Ford 7.5 Trac-Lok is close also with 10 mounting holes and 28 spline side gears. Yukon makes replacement cases for Dana 44 and 60 Powr Lok. I wish they made them for the Dana 30 and you could get it undrilled and/or drilled to the MGB ring gear pattern with 30 spline side gears. Their Grizzly Locker for the 7.5 Ford is like a 4 pinion Detroit Locker with a large spring on both sides(soft engagement, no clunk). Machined steel case that would be much stronger than stock. You could use short Ranger axles or cheap cut to fit long spline axles. Here is a picture.

MGBV8 · May 05, 2015, 06:26:10 PM

If we find something that will work, might be worth having Moser make the axles. The Ford 7.5 posi will be easier to find.

MGBV8 · May 05, 2015, 06:32:54 PM

Another possibility?

http://www.ebay.com/itm/Dodge-Chrysler-8-25-Inch-10-Bolt-Posi-Carrier-Dana-Spicer-27-Spline-Trac-Loc-/251414477395?hash=item3a89787a53&vxp=mtr

mgb260 · May 05, 2015, 07:41:02 PM

Carl, Too big or wide but, the Dana 30 with same 27 spline axle may work. I was hoping for a 8 bolt ring gear mount to eliminate the issues Perry had on his mounting. The early 7.25 Chrysler Sure Grip has 8 bolt mount and same splines as MGB. Pretty rare though.