It's time to replace that old factory 2.80:1 rear end and open differential with a new 3.55:1 ring and pinion, along with a new Yukon Traction Lok limited slip differential.
I purchased these parts from Quick Performance as I had the same kit on my last car and I wanted to go with them again because the previous kit was so successful.
https://www.quickperformance.com/
Ring gear and Pinion - 3.55:1 set, Motive Gear, part number F880355
Limited Slip Diff - Traction Lok differential, Yukon, part number YdGF8-28-AG
Ford Performance Friction Modifier - part number CM-19546-A1
Gear Oil - Lucas Oil 80W-90, used 1.5 liters
Third member assembly and gear lash adjustment done by local shop.
The car is a 1966 Mustang Fastback with a factory V8 and T5 transmission.
Shot with GoPro Hero 8 with the Media Mod, edited on Davinci Resolve 17.
Credit for the music in the video:
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Epidemic Sound
Try it today! https://www.epidemicsound.com/referral/f0tge1/
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#Mustang
#1966
#Fastback