Mustang Owners Club Australia Forum
Technical & General Discussion Area => Tech Torque Pre 1973 => Topic started by: 1965muzzy on August 01, 2018, 10:38:18 pm
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Please let me know what the best diff for my 65 Mustang 4 speed BTR installation.
I have the standard 8 inch 2.92 diff but this needs to change to a approx 3.27 - 3.45 ratio to suit the 4 speed tranny.
I have heard the EB Falcon 28 spline diff is a good option.
If someone has a diff that suits or recommend where I can get one or if I put a new centre into my existing 8 inch diff please let me know. Cheers
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I'd just get new gears put in your existing 8" diff.
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I'd just get new gears put in your existing 8" diff.
Plus 1.
Your 8" should already have 28 spline axles. If it's an open wheeler fit a true track and your preferred gears.
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If the car is just a cruiser, might as well keep the open wheeler and save the money for fuel so you can drive it more :cheers:
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unless your trans is a close ratio, it will work fine with the gears you currently have but it won't accelerate as fast as it would with the other gears. Keep in mind that a 4 speed has 1 more gear than an original automatic and they work fine with 2.9 gears.
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Thanks Gentlemen. Great advise as usual. Cheers
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The falcon diff is not an option ,it's too wide and a totally different diff . The factory mustang 8 inch diff is fine . Ratio might be ok but depends on the wheel size also . Just see how it goes and if you don't like it ,performance wise ,let us know and we will work it out for you .