mikemc04gt

I am having Modular Depot install FR 4.10's in late October, I can hardly wait. I considered 3.09's but I figure the 4.10's won't hurt my fuel economy too bad as I am not on the interstate very much. Also, FR does not make a 3.90 and I would rater stay with a Ford part and I'm sure the mechanics see alot of 4.10's. Any personal experience with 3.90 vs 4.10 in a daily driver manual tranny that will not see any forced induction?

808muscle

You will really love how they feel around town. Car will have a nice snap. Its the only mod I paid somebody to install. You want it to be perfect.

TreyR

You'll love it 4:10s will pull hard