rear disc question

355_79bu

Dragway Regular
Dec 13, 2005
1,240
0
0
Cotter, AR
I have an 8.5" rear I am working on to install in my Malibu. I plan on ordering this weld on disc brake kit from speedway motors:

http://www.speedwaymotors.com/pl/11,2000_Speedway-Complete-GM-Rear-Disc-Brake-Kits.html

Now, my question is, which backspace brake hat should I order (3" or 1.96")? It seems to me I have read a post by someone else on here where they had caliper/frame interference with the 3" backspace hat, but I'm not sure. ANYONE?
BTW: The rear will be the stock G-body width.
 

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