3:73 is all you need that’s what I had in my 99/04.

i have 4.10s in my 2000 and i love it. i have 5 speed so im running around 21-22 mpg with it which is pretty good in my opinion. im hoping to be able to make it push some more hp here soon in the future. and cruising at around 60 with the 5 speed im sitting a little below 2k rpm

Great video! I’m installing 4.10s in my 07 MGM next month. This video really gave me some insight. Thank you

Thanks!

Auto love the 4.10

I put 4.10s in a crown victoria. Really gave some life to that heavy car without spending too much. That being said, I didnt drive too many miles at the time, and the highest speed limit near me is 60mph. If you do a lot of driving or if you have 70mph highways around I would not recommend doing it to your daily.

Rule of thumb for me on SN95 or Edge body Mustangs in 4:10 for manuals and 4:30 for autos. Don't fear the gear 96GT convertible with 4:30's still cruised 65mph at something like 1600 rpm, interstate cruising at 85 mph still easy as could be. I wish I'd actually gone 4:56's on that car.

Wow! That sounds kind of a high price for a rebuild. Had my 8.8 rebuilt along with 3:73s and also did axle bearings. Cost me a little over 600.00 in parts and labor...

With an 04 Procharged 4.6 32 valve Mach 1, 5 speed manual I'd properly say no. I have 4.10 gears in it and IMO it's way too short of a gear. You'll blow your tires off in first and second gear and makes a dig useless. I also had 3.55 gears in a Vortech supercharged 94 5.0, 5 speed manual and those were just about perfect. IMO for the 03/04 standard transmission Mach 1 I'd say leave the stock 3.55's or go to a 3.73, but 4.10's are a bit much if you daily drive it or go on longer trips. It's not terrible, at 70 mph my RPMs are at 2350. You do go through the gears very quickly though. I can't speak for the 4.6 2 valves, just the 32 valve DOHC and the pushrod 5.0.

Ive had 3.27, 3.73 and 4.10 in the same car. I have a bolt on's, custom tuned 5 speed. 4.10 is awesome if you dont care about racing on the interstate. If you have good traction (I'm running toyo proxes 315/30/19) then it will launch you like a rocket

Thats what happens when you got a 4 spd slushbox. 4.10’s in a 5 speed is a lot more noticeable. The forums are right. The gearing gives you much more wheel torque. And it’s quite cheap for the amount of power you’re getting.

This is actually one of the cars I want to get on the new channel really badly- specifically to show how much of a difference 4.10's make on a stock or mild bolt on *automatic* 4.6. Factory stock autos run a low 15sec 1/4 mile- 4.10's should knock almost a full second off of that time...

Whst about 100-145?

First gear is short like the 3.73 . Have you ever started off in second gear ?

Dude i have 4.1o's and drive to florida every yr. (Frm indiana) Long period of driving. Doesnt hurt it a bit. And ur rpms doesnt match mine whatsoever.

I Can Also Guess , That The Gas Mileage SUPPOSED " Drop " MAYBE ISNT Accurate That You Describe. 4 . 10 Gears DO NOT Raise Your Top Gear Cruise Rpm All That Much. Even At 75 to 80 Mph. NEITHER DO 4 : 30 Or Even 4 : 56 Gears . Unless ... YOU ARE ALWAYS / CONSTANTLY SCREAMING UP And Down The Highways at 90 to 95 Mph ... ! EVERY DAY AND ALL THE TIME ... ! AND ... " Around Town " And Shorter Roads And Hills Driving ... Gas Mileage CAN AND PROBABLY WILL EVEN IMPROVE . Because The Engine Is Working LESS Hard and You DON'T Have to CONSTANTLY FLOOR IT And Hit More Gas Pedal All the Time to Drive Around Normally and Drive Up The Hills . And Also , Do a Simple Tune Up AND " Preventative Maintenance " On Your Car. Change The Oil And Oil Filter ... Change The Spark Plugs And Plug Wires ... Replace The Air Filter With A New K & N Air Filter ... And Replace The Fuel Filter With A New One ... Spray Clean Your Throttle Body And Idle Air Control Valve Out With A Good Throttle Body Cleaner ... And Put a Good Type Of " Fuel Injector Care / Cleaner " Bottle In The Gas Tank At Your Next Gas Refil At A Gas Station ... And Then ... You Will PROBABLY NOTICE That ALL of Your Car ' s SUPPOSED " Lost " Gas Mileage , Has Returned .

I have a stock 04 GT automatic good idea to install 4:10?

So basically by you paying $1700 it wasnt worth it? So if the total cost was $800 you would do it again?

I'm going to ask a stupid question. I have a 1999 Ford Mustang GT, automatic. It has 3.27 gears...going to change to 4.10. Keeping the same tires. Should this make any difference as far as the speedometer reading? I would think that as long as I run the same tires, there should be no difference.

1700.00? Dude

if u had a 5speed you would probably feel a difference

NO,, 4:30 is what you want