Dana 60 vs Ford 9 inch
 

I'm lookig for a rearend for my "70 Barracuda project and need some guidance. I've never ordered a custom rearend before, so I'm not sure of all my options and pro/con of each.

The car will be a Pro-touring style 99% street driven car. The motor will be a Procharged 5.7 modern HEMI with a TKO600 trans. (somewehere in the 700 HP and 700 TQ range) The car will be all custom (i.e not a factory restored car). I'm debating going with a Dana 60 (because it kind of goes with the whole Mopar thing) vs a Ford 9 inch (because there are more options and parts available etc). The weight of the Dana 60 also concerns me.

What I'm looking for is something in the 3.55-3.73 gear range, with a posi unit (I'd like some guidance on that too since I'm alittle confused over the difference between a TrueTrac vs Trac loc vs Eaton etc etc). I want it bare (no powedercoating or paint etc) and without the perches welded on yet ( I may move my spring inboard). An aluminum center section is a possibillity if I can fit it in my budget. My budget complete is around $2k, plus or minus.

Any guidance would be great...

I've emailed Strange, Currie and Moser, so we'll see what thier tech guys have to say.

I would run a 35 spline Moser 60 with a tru trac. As you mentioned l, it is a Mopar, and DANAs are killer. Weight is of no concern and the pinion location is better on the 60.

When your ready we can hook you up on the Moser through GPSuperStore.com

I have the Moser 12 bolt 35 spline with the tru trac and it works great. Moser will custom make anything you want.

This is intresting.. sorry for little OT here but could explain more what is needed for good "pro touring "rear axle .

Not trying to pick at ya, but do not want others confused. That 12 bolt has to be a 30 or 33 spline. The only 35 spline Tru tracs only come in 60s, oddly enoguh, 9" Tru Tracs are only 31 spline? Guess they figure Detroit Locker has the 35 spline market covered.

That's what mine is, the 35 spline true trac. I'm looking at the invoice right now. I should have counted the splines when I got it. But I'm pretty sure that's what I got.

Frank
I did send you an email throught the tech email at GPSUperstore, basicallyt asking the same question.

Can you price one out for me and send me an email.

ned

Do you have a 8 7/8 truck rear? There are 35 splines lockers available for those. Here is a link to Detroits site.

http://www.detroitlocker.com/newprod.htm

I have a note to call this one in Tuesday. The price list gets fuzzy when you delete this, add that. Better to get a hard number from them

Ummm no, I have the standard 12. I'm trying to despher the handwriting so it is possible I guess that it says 33 not 35. But that's what I thought I ordered hmmmm. I may have to check into this.

Its a mopar, Id run a dana 60 kinda like apple pie and baseball its just the american way.. First thing you do is look under the back of a mopar you want to see that cover... well if you do that you need to put the little bee in the quarter glass...

So whats wrong with the 8 3/4" that the car may have come with. Just as strong as a nine inch...watching the sparks and comments fly! :willy:

Whats the weak link going to be. The Dana is the better choice.

Tony

The gears in the 9 inch are thicker than the dana. Even though the ring gear in the dana is longer, doesn't mean it's stronger. Plus it's more parasitic and heavy. Go with the 9 incher.

the Dana is heavier, and I'm pretty sure that it is more $$. I ordered a moser 9'' for the chevelle with the back brace,drain plugs, and detroit tru-trac. CAr isn't on the road yet but install went nice. I think I might have someone set-up the center section again, I've heard moser isn't the best at it?. But over all great product. GO 9"

We obviously love the 9" units, and we use Strange almost exclusively. I agree, Frank, I don' think that Tru Trac has a 35 spline posi unit, we always go with the 31 spline setup. Tru Tracs seem to work really, really nice, I love mine and haven't heard any terrible things from others (although there was an issue with the setup they had for the smaller Ford rears ala late Mustang, I think it's is fixed now).

Funny, we get many Mopar fans stating that they won't run a Ford piece on their car, they seem to be more loyal to the original supplier stuff than other brand loyalists. I'd guess it costs us business at some point, but overall, the 9" is a super solid, affordable, relatively light weight (none of them are "light") with a huge supply base of parts. It's the Small Block Chevy of stick axle differentials. Whatever you do, stay far away from Detroit Lockers if you plan on driving the car around turns.

Mark