Brake Caliper Piston Diameter (Page 1/1)
GasTungstenArc JUN 14, 08:33 AM
Fourth attempt to make my first post here:

What is the piston diameter on front and rear brake calipers for a 1988 4 cyl?
Vintage-Nut JUN 14, 09:42 AM
I believe stock 1988 Fiero calipers have 48mm piston diameters on the front and the rear.....

See fieroguru's post:
Potential 11 1/8" Brake Upgrade for 88 Fieros with Stock 15" Wheels by fieroguru
https://www.fiero.nl/forum/Forum1/HTML/098608.html

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Original Owner of a Silver '88 GT
Under 'Production Refurbishment' @ 136k Miles

[This message has been edited by Vintage-Nut (edited 06-14-2024).]

fieroguru JUN 14, 11:16 AM
Yes the 88 uses 48mm calipers front/rear.