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Author Topic:   Aftermarket Axles for 9", opinions please!
steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-09-2000 05:10 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Well we (she) managed to twist and bend both the stock 28 splined axles in the '66s nine inch rear. So it's time for aftermarket axles. I've used Moser's before and still do on my vehicle. What we're trying to decide is whether to go with 28 splined Moser axles, or upgrade to 31 splines which would mean a new diff. Keep in mind it's only a 12 second ride with 1.90 60'ers so far, but it is a 4 speed car. We hope to get the 60'ers down to 1.6's next season with the cal-track bars. Can we get away with good 28 spline axles or should we bite the bullet and go to 31 splies? TIA

Steve & Melissa

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 12-09-2000 06:15 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Moser makes a good product Steve. If you ever have any intention of using slicks now would be a great time to upgrade to 31 spline. You can always sell the 28 spline posi unit as they are worth gold. 28 spline axels will still only be 28 spline no matter what they are made of. Alex

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Alex Denysenko Co-Administrator and Moderator
Fleet of FoMoCo's too long to list!
http://superstockers.homestead.com/week.html

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TomP
Gearhead

Posts: 3609
From: Delta BC Canada
Registered: Dec 99

posted 12-09-2000 06:32 PM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
yeah ... use 31 minimum if you are buying them. You can also upgrade strength by going to Granada 8" axles,they are 28 spline, there is a bit of difference in the dimension of the drum tho, you'll wanna swap to Granada brakes to fit properly,these axles are tougher,thicker,if you break them it'll be at the splines.Compare the length from the bearing to the splines in case your housing is slightly different. The Mustang axles are scrawny necked down jobs.

[This message has been edited by TomP (edited 12-09-2000).]

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jkilroy
Gearhead

Posts: 1289
From: Austin, TX
Registered: Dec 99

posted 12-09-2000 07:23 PM     Click Here to See the Profile for jkilroy   Click Here to Email jkilroy     Edit/Delete Message   Reply w/Quote
Here is a tip to keep from twisting axles off. Take you new axle, clean it with a good de-greaser, and paint a thin straight line down the entire length. After running them for a while, pull them out and check the line, when the twist gets to 90 degrees consider chunking them, when it gets to 180 you are stupid to use them anymore.

You would think that if an axle twisted 90+ degrees it would snap right? Wrong-o ole chap. Back when I was but a smiling stupid virgin a grizzled ole timer showed this trick to me. He also showed me a large stack of axles with twists from 90 to close to 360 degrees. They were all arrow straight and without that line you would not have been able to tell.

BTW, this same trick works well on drive shafts. A good shop will ship the shaft to you with the line already on it.

------------------
Jay Kilroy
68' Fastback GT 390
"No such thing as a cam thats too big"

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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-09-2000 08:06 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Thanks for the tips!

This 9" is from a '57 Ford Wagon and has odd ball axle lengths. From the outside of the wheel bearing to the tip of the splined end they are 28.125 and 23.875". Hope someone stocks them. As far as 31 spline diffs. I could get one from a junk yard off a Ford p/u fairly reasonably right? Or do you think I should go Detroit? (I don't like lockers on the street for safety reasons, but if it's the way to go??) It's no problem for me to put the 4.10 ring gear on it and set it up. Any tips on suppliers? Moser and who else??? Thanks again everyone!

SteveW

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jkilroy
Gearhead

Posts: 1289
From: Austin, TX
Registered: Dec 99

posted 12-09-2000 10:17 PM     Click Here to See the Profile for jkilroy   Click Here to Email jkilroy     Edit/Delete Message   Reply w/Quote
Moser is the best deal, Mark Williams also makes a top quality product.

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Jay Kilroy
68' Fastback GT 390
"No such thing as a cam thats too big"

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 12-09-2000 11:23 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Strange Eng. is my favorite purveyor of differential products and they have a sale going on right now on medium duty 31 spline axels. A 31 spline traction loc is almost industructable Steve if you can get one for a good price. If you can afford it nothing beats a Detroit Locker. NOTHING! Alex

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Alex Denysenko Co-Administrator and Moderator
Fleet of FoMoCo's too long to list!
Moneymaker Bio
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TomP
Gearhead

Posts: 3609
From: Delta BC Canada
Registered: Dec 99

posted 12-10-2000 03:20 AM     Click Here to See the Profile for TomP   Click Here to Email TomP     Edit/Delete Message   Reply w/Quote
yeah 57 axles are weird cast-looking jobs, they none too strong. The locker is the better deal, a 31 spline posi seems to break the cover too easily, the 28 spline one rarely breaks that.

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Just Jim
Gearhead

Posts: 373
From: So Cal
Registered: Feb 2000

posted 12-10-2000 03:09 PM     Click Here to See the Profile for Just Jim     Edit/Delete Message   Reply w/Quote
Steve,
I run stock Maverick 28 spline axles with a Detroit Locker in the Falcon and shortened stock '72 Mustang 28 spline axles and Detroit locker in the Morris.Haven't had any problems at all,but running an auto trans isn't the same as your stick.I would think that the '57 Ford axles would be kind of "work hardened" buy now and somewhat brittle.A good set of aftermarket 28 spline axles should be fine and save you a little money.Just my 2 cents.

Alex,I have a 28 spline 3.89 9inch Ford posi 3rd member in the garage,is it really worth its weight in gold? Are they getting hard to find or something?Just curious.

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"Just Falcon Around"
1962 Falcon 351W
1958 Morris Minor 289

[This message has been edited by Just Jim (edited 12-10-2000).]

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 12-10-2000 04:05 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Jim, it's just that the prices on posi units keeps on climbing. 5 Years ago I could buy a 3.89 FoMoCo 28 spline posi third member for $75 to $100 at any time. New traction loc units were about $125. Now they are almost $300 for just the traction loc. Alex

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Alex Denysenko Co-Administrator and Moderator
Fleet of FoMoCo's too long to list!
Moneymaker Bio
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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-10-2000 10:09 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Thanks again guys,

I'm real tempted to just put Moser 28 splined axles in. It would be a lot easier and cheaper and we have to be ready for a 12-30-2000 race at Sears Point. I'll make some calls on Monday and see what's available. For now I put in one of the old 8" axles and it's about 1/4" shorter, but works ok for street use. Wouldn't a 28 spline detroit work ok, if the trac-lock gives up?

SteveW

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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-24-2000 08:26 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Well just to update everyone, we got the new Moser axles, 28 spline w/ bearings and backing plates. They are nice pieces and have to be a LOT stronger than the stockers. They should hold up. Also got a new GT-350 hood for Christmas, and a shift light, so we'll be ready for the "Vic Hubbard" race at Sears next weekend. Merry Christmas all!! And thanks for the advice.

SteveW

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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-29-2000 08:55 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Well...

The et streets are on, the car is ready, and the weather here has been SPECTACULAR!! Sorry, didn't mean to "rub it in" LOL I can't beleive it has been this dry for so long, next thing you'll be hearing about a drought in California. I've had the week off and gotten quite a few things done, but the weather here in Northern California has been great. Low 30's in the morning and close to 60 in the afternoon. New hood, shift light, Moser axles, we'll see what happens tomorrow at Sears Point. Only thing for certain is it'll be fun. Enjoy the snow, you know it's not too late to move...

SteveW

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I65Stang
Moderator

Posts: 5087
From: Antelope, CA
Registered: Jun 99

posted 12-30-2000 02:44 AM     Click Here to See the Profile for I65Stang   Click Here to Email I65Stang     Edit/Delete Message   Reply w/Quote
Good luck Steve! Hopefully soon I will be able to say I am heading out to the track too :>). BTW, the Sacramento valley is at 50% of its usual rainfall and the mountains are at 40-50% of their usual snowfall. Skiing isnt suppose to be that good right now, we really could use some rain and snow.

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Tim
M&M Member #35
1965 Mustang coupe, 200 ci w/ a Holley 2300, Clifford header, and true duals w/ 26" Smithys
1988 Mustang GT vert, totally stock for now
http://all.at/mustang
https://mustangsandmore.com/ubb/I65Stang.html

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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-30-2000 08:17 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Tim,

Yeah we might be hearing that drought word before long. It was a beautiful day at Sears, the car ran well 12.74-12.76 consistently @ 109 mph, w/ 1.85 60'ers. (the shift light is helpimg with the consistency) Cal-Track clones next But, a .496 red light ruined the "ta da"

Happy New Year everyone!!

SteveW

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I65Stang
Moderator

Posts: 5087
From: Antelope, CA
Registered: Jun 99

posted 12-30-2000 09:59 PM     Click Here to See the Profile for I65Stang   Click Here to Email I65Stang     Edit/Delete Message   Reply w/Quote
Cool Steve, was that you or Melissa driving? Looks like the 60s dropped a few hundreths and the Cal-tracks will help that even more :>). When is Sears starting their Wednesday night drags back up?

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Tim
M&M Member #35
1965 Mustang coupe, 200 ci w/ a Holley 2300, Clifford header, and true duals w/ 26" Smithys
1988 Mustang GT vert, totally stock for now
http://all.at/mustang
https://mustangsandmore.com/ubb/I65Stang.html

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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 12-30-2000 10:08 PM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Tim,

That's all Melissa's "girl power" driving! I'm "retired" Sear's Wednesday Night drags start the first Weds. in March and run through early October. I ended up with 18 psi in the et streets and I put my two tool bags in the trunk for balast. Just gas shocks in the front, and lakewook trac-bars. It didn't get squirelly, so the body is still straight You'll have to join us for some fun this season!
The next w/e race is Jan 27th, sponsored by Summit (of course)

SteveW

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 12-31-2000 06:07 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Good job Steve and Melissa. That's 11 second speed! Now all you have to do is work on some "hook" and get some more ET out of it. Alex

------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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I65Stang
Moderator

Posts: 5087
From: Antelope, CA
Registered: Jun 99

posted 12-31-2000 08:48 PM     Click Here to See the Profile for I65Stang   Click Here to Email I65Stang     Edit/Delete Message   Reply w/Quote
Do you already have a 6 point bar and 5-point harness in it Steve? It doesnt look like it in the picture but you never know. If not, you better get ready :>). My saying was I was shooting for low 12's to keep from having to put a bar in, now that I bought the convertible I can shoot quicker as I will already have the bar at 13.99 :>).

I will definitely make it out this year, perhaps for the next weekend one (probably not racing the vert though if I get to the one at the end of next month).

------------------
Tim
M&M Member #35
1965 Mustang coupe, 200 ci w/ a Holley 2300, Clifford header, and true duals w/ 26" Smithys
1988 Mustang GT vert, totally stock for now
http://all.at/mustang
https://mustangsandmore.com/ubb/I65Stang.html

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steve'66
Gearhead

Posts: 3653
From: Sonoma,CA,USA
Registered: Mar 2000

posted 01-01-2001 01:19 AM     Click Here to See the Profile for steve'66   Click Here to Email steve'66     Edit/Delete Message   Reply w/Quote
Thanks Alex, Tim, Tom, Jim, Jay, and Tony;

No there's no roll bar and only stock lap belts in it now. I don't think 11's are possible in street/daily driver trim. Low 12's maybe, but it should stay safely in the 12s for a while, (which is mandatory for H.S. and Street classes). You guys have been a great help throughout this project, if you remember the original goal was to run 13's LOL. We chose a little "overkill" with the 351w to be sure we made it, and now we're talking 11's It's been fun, and the car is still heavy, track weight last w/e was 3,090 with the tool bags!

SteveW

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Moneymaker
Administrator

Posts: 11493
From: Lyons, IL, USA
Registered: May 99

posted 01-01-2001 12:14 PM     Click Here to See the Profile for Moneymaker   Click Here to Email Moneymaker     Edit/Delete Message   Reply w/Quote
Heavy?????? At 3090 lbs.? MM has to weigh 2965 lbs. minimum! I normally run it at 2975 lbs.

------------------
Alex Denysenko Co-Administrator and Moderator NHRA/IHRA/SRA member
Fleet of FoMoCo products
Moneymaker Bio
US Class Nationals link

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