From 2:73's to 3:73's.No tune, auto trans?
05-31-2011, 06:36 PM
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From 2:73's to 3:73's.No tune, auto trans? So I'm having my 3:73's installed tomorrow. I wanted to take it to a local place for them to do a basic tune IE adjust the shift points and compensate for the speedo. The only problem is that I might not be able to get it done until next week because they are pretty much packed. Will it really hurt me to drive it untuned for maybe a week? Thanks in advance! BTW auto trans car.
05-31-2011, 09:09 PM
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I drove my car with a 4.10 gear tune on my 3.23s for like a day or two, until I swapped the rear ends. It drove fine, but the speedo was off. If you don't get on it, I don't see why it couldn't work in a pinch.
05-31-2011, 09:27 PM
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Dosent hurt anything just throw mph off a bit. I have same gear swap and drove for 2 month no biggie - your gonna love the power it converts to the wheels now - get some stickies if your going form a dig 
05-31-2011, 09:45 PM
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just had this same setup done on my formula, been 2 weeks now, my speedo is off by 20 mph so i have to take it back to get that done when i pick up my front plate. drives fine and i love the new feel.
