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Can't keep a rearend in it

646 Views 3 Replies 1 Participant Last post by  camachinist
G
Friend has an 80s Mustang which was a 4 banger to start with,droped a 302 with a 750 Holly and a 4speed xmsn in it, hooked to a 9" rear, now he can't keep a rearend under it. Bust 'em every time he gets down on it. Other than the body dosen't have the weigh what could be his problem?

Formerly:debo
'66hardtop,289 2v,c4,8"rear that's ragged
'94 F150 Mark III,5.0l, my daily driver
'01 Explorer, Eddie Bauer edition,SWMBO's DD
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What part of the rear end is breaking??

Is he using slicks on the car?

Are you sure it's a 9"....?

Take a look at this picture and tell me which gear carrier your friend has...pay close attention to the bottom housing bolt holes and their relationship to the casting

Pat
http://www.jps.net/binay/webdocs/strtmstng002_sml.JPG
 

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What kind of gear carrier is he using? Open, 2 pinion or 4 pinion?

Tell me a little about what he's done to the rear suspension and shock absorbers all the way around....

Wheel hop can cause a lot of problem, not just with the rear end...

Pat
http://www.jps.net/binay/webdocs/strtmstng002_sml.JPG
 
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