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Lars
 Post subject: 8 1/4 question
PostPosted: Fri Dec 01, 2006 5:37 pm 
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If I were to buy a 8 1/4 rear out of a Dippy, and it had the 2.26 or 2.45 ratio in it. Would I be able to buy the MPP sure grip that they sell and bolt some 3.21's to it? I know that the open carrier wouldn't work, but assuming I replaced it with the sure grip everything should be kosher right?

Oh yeah, and is an M body rear too wide for a Dart? Or will the width be OK?

Thanks

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Jeb
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PostPosted: Fri Dec 01, 2006 5:59 pm 
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The 8 1/4 rears with ratios higher than 2.45 used a special carrier. You can't put any gears lower than 2.45 in those rears.

M-body rears are the exact same as F-body units (same cars, different sheet metal) It should fit if you relocate the spring perches and use the correct ones.

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DusterIdiot
PostPosted: Fri Dec 01, 2006 7:51 pm 
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The 8 1/4 rears with ratios higher than 2.45 used a special carrier. You can't put any gears lower than 2.45 in those rears.

He can put 2.76's to 5+?!?!?!? in the rear if he buys either an carrier from an 8.25" 2.76+ rear, or a new sure grip carrier (pre-1997 I think).

Good luck,

-D.Idiot
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Lars
PostPosted: Fri Dec 01, 2006 11:53 pm 
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Quote:
Quote:
The 8 1/4 rears with ratios higher than 2.45 used a special carrier. You can't put any gears lower than 2.45 in those rears.

He can put 2.76's to 5+?!?!?!? in the rear if he buys either an carrier from an 8.25" 2.76+ rear, or a new sure grip carrier (pre-1997 I think).

Good luck,

-D.Idiot
Yeah, that was my question, I may not have worded it well. If I replace the open diff with the MP sure grip I can use any ratio right?

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DusterIdiot
 Post subject: Yes...
PostPosted: Sat Dec 02, 2006 8:59 am 
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If I replace the open diff with the MP sure grip I can use any ratio right?

Yes, but make sure the sure grip is for a pre-97, there is a change in the 8 1/4" stuff about that time (the MP catalog usually will list one for 96 and under, and one for the truck guys 97+)...

-D.Idiot
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Lars
 Post subject: Re: Yes...
PostPosted: Sat Dec 02, 2006 3:05 pm 
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If I replace the open diff with the MP sure grip I can use any ratio right?

Yes, but make sure the sure grip is for a pre-97, there is a change in the 8 1/4" stuff about that time (the MP catalog usually will list one for 96 and under, and one for the truck guys 97+)...

-D.Idiot
Yeah, there is a $100 difference between the 97+ SG and the 96- SG.

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Jeb
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PostPosted: Sat Dec 02, 2006 4:17 pm 
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Ooops sorry, I didn't see the part about you planned on changing the carrier. I guess I should have read more carefully. :oops: :oops:

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Lars
 Post subject:
PostPosted: Tue Dec 05, 2006 11:22 am 
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Anybody know if a Dippy rear is too wide or not?

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Dart270
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PostPosted: Tue Dec 05, 2006 12:28 pm 
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I believe they are about 3" wider overall between the axle/wheel flanges. If you want to run late model Mustang rims, this could work out fine since they have lots of backspacing. With stock Mopar rims, it probably would not work unless you have really skinny wheels/tires.

Lou

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Lars
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PostPosted: Tue Dec 05, 2006 1:28 pm 
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OK, good to know, thanks Lou!

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mopar_nocar
 Post subject:
PostPosted: Mon Dec 11, 2006 1:37 pm 
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Lars where are u? i might be have a rear for u.

sb
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Lars
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PostPosted: Mon Dec 11, 2006 5:41 pm 
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Austin area. Whacha got?

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mopar_nocar
 Post subject: lars:
PostPosted: Mon Dec 11, 2006 7:54 pm 
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you have a pm.

sb
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