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Thread: Billet A413 Differential Covers

  1. #1
    boostaholic
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    Billet A413 Differential Covers

    In the next month Im going to be making (4) a 413 diff covers. They will be 3D CNC machined out of a 2"x10"x9" piece of 6061 aluminum and will have a 1/2" thick wall. Price will be $250 If anyone else wants one let me know so I can order more aluminum.

    Thanks Adam

  2. #2
    turbo addict
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    Re: Billet A413 Differential Covers

    Since my aluminum case at about double the thickness of the steel diff cover was the only site of perforation* when I trashed my diff, I have to ask, what is the advantage of these???



    (*Knocked plenty of dents in the diff cover though)
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  3. #3
    Super Moderator Turbo Mopar Staff contraption22's Avatar
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    Re: Billet A413 Differential Covers

    For one thing they will be nice and thick and rigid. I have never been able to get a stamped steel diff cover to completely seal because they usually bend slightly when you pry them off after being glued on with ATF sealant.

    I am in for one.
    Mike Marra
    1986 Plymouth Horizon GLMF "The Contraption" < entertaining sponsorship offers
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  4. #4
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by contraption22 View Post
    For one thing they will be nice and thick and rigid. I have never been able to get a stamped steel diff cover to completely seal because they usually bend slightly when you pry them off after being glued on with ATF sealant.

    I am in for one.
    Got you on the list!

    Quote Originally Posted by RoadWarrior222 View Post
    Since my aluminum case at about double the thickness of the steel diff cover was the only site of perforation* when I trashed my diff, I have to ask, what is the advantage of these???



    (*Knocked plenty of dents in the diff cover though)
    The one guy that asked me to make them has been cracking the case in that area. He feels that the 1/2" aluminum cover will be more rigid then the 1/16 stamped steel cover, and can only help the problem.
    Last edited by lengel; 09-28-2011 at 09:16 PM. Reason: can

  5. #5
    Buy my stuff!!!!!!!!!!! :O) Turbo Mopar Vendor turbovanmanČ's Avatar
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    Re: Billet A413 Differential Covers

    Oh why oh why can't I be rich, I would love one but damn, just can't afford to drop $250.

    What about an oil pan?
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  6. #6
    Super Moderator Turbo Mopar Staff contraption22's Avatar
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by turbovanman View Post
    Oh why oh why can't I be rich, I would love one but damn, just can't afford to drop $250.

    What about an oil pan?
    I don't really have the money to spare right now either, it's going to come out of what I usually put away each month. But I know that if I don't get in on this now, I will wish i had.
    Mike Marra
    1986 Plymouth Horizon GLMF "The Contraption" < entertaining sponsorship offers
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  7. #7
    Visit www.boostbutton.com... Turbo Mopar Contributor ShelGame's Avatar
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by turbovanman View Post
    Oh why oh why can't I be rich, I would love one but damn, just can't afford to drop $250.

    What about an oil pan?
    Ditto on the oil pan. Deep well, too; with a drain plug built in.
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  8. #8
    Supporting Member Turbo Mopar Contributor glhs727's Avatar
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    Re: Billet A413 Differential Covers

    put me down for an a413 cover as well.....
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  9. #9
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by lengel View Post
    The one guy that asked me to make them has been cracking the case in that area. He feels that the 1/2" aluminum cover will be more rigid then the 1/16 stamped steel cover, and can only help the problem.
    That actually makes sense

    ---------- Post added at 10:16 PM ---------- Previous post was at 10:14 PM ----------

    Quote Originally Posted by contraption22 View Post
    For one thing they will be nice and thick and rigid. I have never been able to get a stamped steel diff cover to completely seal because they usually bend slightly when you pry them off after being glued on with ATF sealant.
    hmmm, beat mine flat again, knocked out the more obvious dents, resealed fine. Black RTV. Clean surfaces with brake cleaner. Criss cross tighten the bolts snug then torque to spec. Basic procedures.
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  10. #10
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    Re: Billet A413 Differential Covers

    That cover and a better oil pan will surely help the case from flexing,
    1989 FWD Turbo Caravan-2.5 TIII, GT35R, auto, a/c, cruise, pwr windows/locks, fully loaded with interior and ran with full exhaust. RETIRED FOR A FEW YEARS! 12.57@104 :O)
    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

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  11. #11
    turbo addict Chris W's Avatar
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    Re: Billet A413 Differential Covers

    We'll take one as well Adam.

    Thanks for producing these for the community!

    Chris-TU
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  12. #12
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by turbovanman View Post
    and a better oil pan will surely help the case from flexing,
    Oil pan seems fairly rigid to me, but it doesn't hold on much thickness, i.e. can slop on the bolts... and the bolts don't hold very tight, really easy to strip out... so I dunno if it would need more work than just a pan to add rigidity down there.

    Though there's some clearance.. not a lot, I'm thinking some sort of X brace and antislosh baffle in one, that you bolt in...
    DD1: '02 T&C Ltd, 3.8 AWD. DD2: '15 Versa Note SV, replacing.. DDx: '14 Versa Note SV << freshly killded :( ....... Projects: '88 Voyager 3.0, Auto with shift kit, timing advance, walker sound FX muffler on 15" pumpers wrapped in 215/65/R15 H rated Nexens.... and a '95 phord escort wagon PnP head << Both may need to go :( ..... I like 3.0s ... so??? ... stop looking at me like I've got two heads!

  13. #13
    Supporting Member Turbo Mopar Contributor zin's Avatar
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    Re: Billet A413 Differential Covers

    I'm wondering if a 1/4" steel "girdle" and some studs would accomplish the same effect, though with much less style!

    Mike
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  14. #14
    Moderator Turbo Mopar Staff Vigo's Avatar
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    Re: Billet A413 Differential Covers

    I think the people who need this piece, know how valuable it could be..

    Props for taking it on!

    Shel-game, im not saying a nice deep pan with a built-in drain plug wouldnt be nice, but i add my own drain plugs. That and the reusable mopar gasket makes an auto 96% less annoying to work on.

    Dont push the red button.You hear me?

  15. #15
    Supporting Member Turbo Mopar Contributor turbo2point2's Avatar
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    Re: Billet A413 Differential Covers

    I'm in for one Adam, thanks for getting these to market. I mentioned to Adam that I felt these would add another degree of stiffness in the diff area of our cases. Just finished building a new trans because of cracking issues. I'll try and post a pic.

    -Brian Slowe
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  16. #16
    turbo addict Turbo Mopar Contributor
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    Re: Billet A413 Differential Covers

    Hmm Bayshore Power is looking to run some deep 8's on his 3 speed with piggish weight so I wonder if he is beefed up in that area...
    Brent GREAT DEPRESSION RACING 1992 Duster 3.0T The Junkyard - MS II, OEM 10:1 -[I] Old - 11.5@125 22psi $90 [U]Stock[/U] 3.0 Junk Motor - 1 bar MAP [/I] 1994 Spirit 3.0T - 11.5@120 20 psi - Daily :eyebrows: Holset He351 -FT600 - 393whp 457ft/lb @18psi 1994 Spirit 3.0T a670 - He341, stock fuel, BEGI. Wife's into kid's project. 1990 Lebaron Coupe 2.2 TI/II non IC, a413 1990 Spirit 3.0 E.S. 41TE -- 1993 Spirit 3.0 E.S. 41TE -- 1994 Duster 3.0 A543 1981 Starlet KP61 Potential driver -- 1981 Starlet KP61 Parts -- 1983 Starlet KP61 Drag 2005 Durango Hemi Limited -- 1998 Dodge 12v 47re. AFC mods, No plate, Mack plug, Boost elbow -- 2011 Dodge 6.7 G56

  17. #17
    Garrett booster
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    Re: Billet A413 Differential Covers

    I'll take one also Adam.

  18. #18
    Supporting Member Turbo Mopar Contributor turbo2point2's Avatar
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by Ondonti View Post
    Hmm Bayshore Power is looking to run some deep 8's on his 3 speed with piggish weight so I wonder if he is beefed up in that area...
    The 31th case has a lot of added material and extra ribbing throughout the case. Definitely a plus for the extra weight of that he carries.

    -Brian Slowe
    87 Shadow "BSX"
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    86 GLHT
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    12.1 @ ???.??

    06 Ram 3500

  19. #19
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    Re: Billet A413 Differential Covers

    same theory as to why mopar went to a aluminum 5th gear cover on the 523/568 IMO. Can't do nothing but help. If I was keeping my 413 I'd be in for one.

  20. #20
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    Re: Billet A413 Differential Covers

    Quote Originally Posted by GLHNSLHT2 View Post
    same theory as to why mopar went to a aluminum 5th gear cover on the 523/568 IMO. Can't do nothing but help. If I was keeping my 413 I'd be in for one.
    I thought you were?
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    1984 Chev Getaway van, 6.2 Diesel with a remote mounted turbo setup burning WMO-For sale.
    2003 GSW 2.0L TDI, auto, fully loaded, modified, 360K-wife's.
    2004 GSW TDI, 5 speed, fully loaded, modified.

    Aurora ignition wires for sale. Link to info

    Super60 roller cams or custom/billet cams. Link to info

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