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MontyC · 10-06-2009, 06:57 PM

I ran a 8 1/4 for years in a 72 Duster 340. Broke one tooth once on ring gear. Car ran mid 11's in "stocker trim". Full interior all steel. I think it is less hassle with 8 3/4 being able to use a spool and not have to replace the Posi in the 8 1/4 every few years or so. I did change to an 8 3/4 but made a gear change so I can't say if one is faster.

Monty

10-06-2009, 06:57 PM	#7
MontyC Junior Member Join Date: Jan 2005 Posts: 19 Likes: 0 Liked 0 Times in 0 Posts	Re: Mopar 8 3/4 VS 8 1/4 I ran a 8 1/4 for years in a 72 Duster 340. Broke one tooth once on ring gear. Car ran mid 11's in "stocker trim". Full interior all steel. I think it is less hassle with 8 3/4 being able to use a spool and not have to replace the Posi in the 8 1/4 every few years or so. I did change to an 8 3/4 but made a gear change so I can't say if one is faster. Monty