98 Town Car Cartier differential swap 3.08 to 3.27?

tommytom68

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Hello... new member here.
I have some noises coming from the rear end of my 98 TC Cartier w/211k on it. They change depending on speed and load, and was told that it's coming from my differential. My mechanic has a Crown Vic rear end w/low miles that will fit, except that it is a 3.27 gear ratio and my TC has a 3.08 gear ratio. Can they be swapped without any ill effects to any on board systems? (computer, traction control, ABS, etc) Would speedo cable mods be nec? Any advice on this subject would be appreciated. To rebuild would be $700-$900 plus I would need to buy a new axle. Thanks in advance!
 
If the Vic had the same options as the TC I think you would be fine
Might have to change the speedo gear
 

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