HELP!!! '91 & '88 Front Control Arms

302efi · Feb 27, 2004

I messed up the treads on my ball joint on my pass. side '91 4 cyl pretty bad and I was planning on using the whole front lower control arm off my old '88 4 cyl. Are they the same arm ?

I know Ford made changes to the cars in '91 to accomidate for the pony wheels, so I was wasnt to sure the '88 arms would fit ok ?

Anlushac11 · Feb 28, 2004

yes they should be the same

the change was in teh K-memmber and a larger fender well opening

302efi · Feb 28, 2004

Anlushac11 said:
yes they should be the same

the change was in teh K-memmber and a larger fender well opening

The reason I asked was because I seen your thread:

"Poormans SVO style front suspension? "
http://forums.stangnet.com/showthread.php?t=422272&highlight=svo

You posted this:

...'79-'88 Mustang K-member front A-arm bolt center to center - 22.75"
'89-'93 Mustang K-member front A-arm bolt center to center - 23.75"
Mustang SVO K-member front A-arm bolt center to center - 23.00"

'79-'88 Mustang K-member rear A-arm bolt center to center - 30.125"
'89-'93 Mustang K-member rear A-arm bolt center to center - 31.125"
Mustang SVO K-member rear A-arm bolt center to center - 29.5"

'79-'93 K-member angle of A-arm off centerline of car - 16.5 deg.
Mustang SVO angle of A-arm off centerline of car - 14.5deg.

'79-'88 K-member overall width from ball joint to ball joint - 51.37"
'89-'93 K-member overall width from ball joint to ball joint - 52.37"
SVO K-member overall width from ball joint to ball joint - 53.36"

Stock Mustang A-arms '79-'93 - 13.00" long
Mustang SVO A-arms - 14.00" long
1987-1988 Thunderbird A-arms - 13.75" long.

What all exactly changed ?

Anlushac11 · Feb 28, 2004

But you notice the A-arm is the same length. Ford changed the width of the K-Member and made the wheel opening in the fender larger to more readily accomodate the 16" wheel but kept the same A-arm.

The A-arm design is the same from 79-93. IIRC the only difference is that in 1983 Ford started using teflon lined balljoints for the HD suspension to reduce impact harshness. These can be identified by having no grease fittings.

HELP!!! '91 & '88 Front Control Arms

302efi

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Anlushac11

302efi

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Anlushac11

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