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  Crash corse in 8.8 rear ends..

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Author Topic:   Crash corse in 8.8 rear ends..
rm302 boss
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Posts: 578
From: Austin Texas
Registered: Dec 2002

posted 04-03-2003 02:07 PM     Click Here to See the Profile for rm302 boss   Click Here to Email rm302 boss     Edit/Delete Message   Reply w/Quote
Can some one give me a crash coarse in 8.8's???? How many spines,what can they take etc????
Up till now i have been a 9" guy.. I have no clue about 8.8 open cover rear ends.
Rene

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1970 Boss 302
1990 Taurus SHO
1985 Mustang GT 351W
1995 Land rover Disco
1980 Triumph Spitfire (auto-X car)
http://mustangsandmore.50megs.com/MembersPics/rm302boss.html

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Rory McNeil
Gearhead

Posts: 1177
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 04-04-2003 02:42 AM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
From the factory, 8.8`s came in either 28 or 31 spline, with the 31 splines used in F series pickups (maybe some Econolines, too??)The Mustang units were pretty much the same from 86 up, although the 94+ Mustangs had rear disc brakes, with a slightly wider track width, although I think that was from axle width. 8.8`s were also used in Ranger PU`s,& Aerostars with the 4.0L V6,as well as Explorers. A IRS version was also used in the Thunderbird Super Coupe, & its Cougar cousin, plus the later versions of the Mustang Cobra. There is a wide range of aftermarket axles, spools, C Clip eliminators etc, as well as ratio`s of up to 5.14`s.

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78 Fairmont 428 4 speed 10.20@130mph
80 Fairmont 302 5 speed 12.8@105mph
85 Mustang NHRA Stocker under construction, 302 5 speed
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

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rm302 boss
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Posts: 578
From: Austin Texas
Registered: Dec 2002

posted 04-04-2003 09:46 AM     Click Here to See the Profile for rm302 boss   Click Here to Email rm302 boss     Edit/Delete Message   Reply w/Quote
"c" clips.... Tell me its not true...I used to make fun of my GM buddys about their c clips falling out, shortly followed be the axil... Now i have one.. Yuck.. I miss my 9" .. Thanks for all the info. Can the 31 spline axils be transplanted to the 28 spline rear ends?
Rene

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itlbrnmoff
Gearhead

Posts: 670
From: Indianapolis,IN.USA
Registered: Nov 2002

posted 04-04-2003 11:15 AM     Click Here to See the Profile for itlbrnmoff   Click Here to Email itlbrnmoff     Edit/Delete Message   Reply w/Quote
I hear shrinkage comes with age...

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Low Dollar 1983 Mustang GT W/T-tops...
306 4bbl. T-5 3.45 trac-loc...it'll burn 'em off
1988 Lincoln LSC
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Rory McNeil
Gearhead

Posts: 1177
From: Surrey, B.C. Canada
Registered: Nov 2000

posted 04-04-2003 12:32 PM     Click Here to See the Profile for Rory McNeil   Click Here to Email Rory McNeil     Edit/Delete Message   Reply w/Quote
Yes, you can buy 31 spline axles, although you naturally will need a 31 spline posi unit, or possibly swap the 28 spline side gears for 31`s. On my 85 Mustang, I put in a 8.8 with 31 spline Moser spool& axles, and C clip eliminators. You can also get 33 spline axles, I don`t know if anything larger is available or not. As for the C clips, I don`t know why Ford chose to copy one of GM`s "better ideas , On my 302 street Fairmont, I had the pleasure of snapping the drivers side axle on the starting line, & although the car only rolled foreward maybe 20 feet, it was still far enough for the slick to get chewed up as the axle pulled out about 2 feet . Naturally, while this happened, I applied the brakes, however, since the brake drum was now 2 feet away from the shoes, I only suceeded in popping out the pistons in the wheel cylinder. It`s fun trying to remove a broken, twisted axle`s splined stub out, as you first need to force the twisted mess into the side gear about 1/2" or so, to allow the C clip to be removed. We had to pull out the carrier, lay it on the blacktop (with a piece of wood in between), and use a large sledge hammer & drift to acompolish this little task, THEN you need to force the axle out, once the C clip is out. Lots of fun.

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78 Fairmont 428 4 speed 10.20@130mph
80 Fairmont 302 5 speed 12.8@105mph
85 Mustang NHRA Stocker under construction, 302 5 speed
59 Meteor (Canadian Ford) 2 dr sedan 332, auto
74 F350 ramp truck 390 4spd

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rm302 boss
Moderator

Posts: 578
From: Austin Texas
Registered: Dec 2002

posted 04-04-2003 11:49 PM     Click Here to See the Profile for rm302 boss   Click Here to Email rm302 boss     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by itlbrnmoff:
I hear shrinkage comes with age...


At 34 the only shrinkage i am experiencing at this point is in the wallet....
Rene

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rm302 boss
Moderator

Posts: 578
From: Austin Texas
Registered: Dec 2002

posted 04-10-2003 03:09 PM     Click Here to See the Profile for rm302 boss   Click Here to Email rm302 boss     Edit/Delete Message   Reply w/Quote
What is this about 9" axles in a 8.8????
Any one done it??? I have lots of 28-31 splined axles laying around..
Rene

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Stewart
Moderator

Posts: 9155
From: Monterey, CA Mustangsandmore Member #437
Registered: Apr 2000

posted 04-10-2003 05:05 PM     Click Here to See the Profile for Stewart   Click Here to Email Stewart     Edit/Delete Message   Reply w/Quote
Griggs Racing does this. It eliminates the need for the C clips. Call 'em up and ask them how they do it. They explained it to me once over the phone.

http://www.griggsracing.com

Griggs Racing Products, Inc.
29175 Arnold Drive, Sonoma, CA 95476
(707) 939-2244

Stewart

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Daniel Jones
Gearhead

Posts: 488
From: St. Louis, MO
Registered: Aug 99

posted 04-10-2003 06:48 PM     Click Here to See the Profile for Daniel Jones   Click Here to Email Daniel Jones     Edit/Delete Message   Reply w/Quote
> I used to make fun of my GM buddys about their c clips falling out, shortly
> followed be the axle

That happened to me once, in the middle of rush hour traffic, in my
old Buick Regal. The axle slid right out of the housing at 70 MPH,
along with the drum, tire, and wheel. Dropped down on the shock mount
shooting sparks.

> There is a wide range of aftermarket axles, spools, C Clip eliminators etc,

You do not want the C-clip eliminators. That's a drag racing-only mod and
places like Moser do not recommend it for road race cars.

> Griggs Racing does this. It eliminates the need for the C clips.

Basically, they hack the ends off the 8.8" axle tubes and weld on
9" flanges with the proper axles. You get the positive axle retention
and stiffer axles, both of which are needed for serious road race work.

You can rebuild the 8.8" with additional clutch packs which may help
at the strip but may hurt on the autocross. You can add friction modifier
to get the best balance.

Dan Jones

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rm302 boss
Moderator

Posts: 578
From: Austin Texas
Registered: Dec 2002

posted 04-10-2003 08:16 PM     Click Here to See the Profile for rm302 boss   Click Here to Email rm302 boss     Edit/Delete Message   Reply w/Quote
What do you get the axles out of???
Length wise??? I have a 9" housing but no trueing rod.. ( its a large rod that goes in one side and comes out the other for fabricated rear ends)
Rene

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SteveLaRiviere
Administrator

Posts: 32655
From: Saco, Maine
Registered: May 99

posted 04-11-2003 08:39 AM     Click Here to See the Profile for SteveLaRiviere   Click Here to Email SteveLaRiviere     Edit/Delete Message   Reply w/Quote
quote:
Originally posted by rm302 boss:
At 34 the only shrinkage i am experiencing at this point is in the wallet....
Rene

Your hair is next.

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'70 Mustang Mach 1 - '72 Mustang Sprint - '94 F-150

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rm302 boss
Moderator

Posts: 578
From: Austin Texas
Registered: Dec 2002

posted 04-11-2003 02:13 PM     Click Here to See the Profile for rm302 boss   Click Here to Email rm302 boss     Edit/Delete Message   Reply w/Quote
Speak for yor self, i need a hair cut every two weeks....... So your having balding issues..
Rene

[This message has been edited by rm302 boss (edited 04-20-2003).]

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