Should You Put 4.10 Gears In Your 4.6 Mustang?

[@79chevy901]

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

[@thenegus5469]

Most people end up wanting more gear. I know many people who have

[@79chevy901]

@@thenegus5469a 3:73 rear gears is all that is needed unless it’s a drag car trust me! 4:10 rear gears are made for race cars not daily drivers!

[@thenegus5469]

@@79chevy901 disagree. The differences in driving on the highway is not really noticeable. Nothing really worse about 4.10s in a dd car than 3.73s

[@79chevy901]

@@thenegus5469 Dude if it’s your car do you because I don’t care.

[@robbie178991]

Dang and I’m over thinking of putting 4.56 gears in my foxbody lol

[@noahdziadyk3412]

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

[@stinkeyecustoms]

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.

[@04shkr]

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...

[@CarGuyV8]

I agree. It was higher than I initially expected. It reminded me of why I do all of my own work.

[@vegasfordguy]

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.

[@nothanks1627]

I can speak for the 2v, non boosted, 3.55 best all around. If you like buying tires and gas 4.10's is your ticket

[@chillkid92]

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

[@CarGuyV8]

Thanks for watching

[@gabrielalfiche]

Auto love the 4.10

[@CarGuyV8]

Yeah it’s definitely a lot more fun

[@BuckeyeBallistics]

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...

[@CarGuyV8]

Some of the automatics do run a low 15 high 14(usually driver or altitude related) but some are faster from the factory. My brother has a bone stock 02 automatic that is just faster than it should be. It chirps the tires going into 2nd at wot and pulls hard for a 2v. No doubt in my mind that it would be a 14 flat car. It’ll beat mine even with my gears and exhaust work done. My engine has around the same mileage too.

[@BuckeyeBallistics]

@@CarGuyV8 Yo where did my reply go... don't tell me you deleted it because you didn't like what I said 🤣

[@CarGuyV8]

@@BuckeyeBallistics No I didn’t delete anything 😂

[@CarGuyV8]

@@BuckeyeBallistics I’ll guess it said something to the effect of these cars are slow turds and way too expensive for what you get 😂

[@BuckeyeBallistics]

@@CarGuyV8 Nope, not at all. I said no way a stock 2V 4.6 auto runs 14 flat because that's what the 4V Cobra and LS1 cars run...

[@billymadison8036]

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

[@macmccune21]

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.

[@ryanthorpe7403]

I have 08 crown vic 3:27 lsd. So the 4:10's are worth upgrading too? I do only city driving no highway

[@clumblump6095]

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.

[@clumblump6095]

You didn’t need to spend $1700. Thats just crazy. You coulda bought cams for that amount.

[@SouthwestORV]

Thanks!

[@GatesRapes]

NO,, 4:30 is what you want

[@shadowsfad3d]

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.

[@CarGuyV8]

You must have taller tires than 26”.

[@ericdaniel92]

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 .

[@jamesp9998]

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

[@CarGuyV8]

Mines an automatic so it not bad. With my old 5 speed and 3.73s I’d have to slip the clutch too much to start in 2nd often.

[@FreedomLivelyWatch]

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

[@CarGuyV8]

That’s what mine is. If you plan to keep it go for it. If there’s any chance you’ll sell it soon don’t.

[@sschu2223]

Whst about 100-145?

[@ryanthorpe7403]

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

[@CarGuyV8]

Looking back at this from over a year ago, I’d probably do it again either way.

[@ryanthorpe7403]

Do you still daily drive the car as of today?

[@CarGuyV8]

@@ryanthorpe7403 I sold it last year

[@davidnonnenmocher5122]

1700.00? Dude

[@CarGuyV8]

At a shop with a full rearend rebuild and computer speedometer tune yes.

[@lawnmaster111]

Ditch the 4.6 then maybe

[@linoacuna4283]

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

[@CarGuyV8]

Yeah I had an 04 cammed/bolt on GT with a 5 speed and 3.73s. Those gears felt really good in that car with the steeper transmission gearing.

[@linoacuna4283]

thanks for this video I think il just stick to my 373 gears I was looking into 410 gears.my 00 2v has heads and cams along with gears full exhaust bord 20 over 5 litter rotating assembly.its set up for boost for later on the road

[@RedlovesThunder]

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.

[@CarGuyV8]

The speed sensor is in the transmission, not the differential in new edges. The computer will see the higher rpm that the transmission is turning and think your car is going faster than it is. You’ll need a computer tune to make the speedometer read accurately.

[@RedlovesThunder]

@@CarGuyV8 Thank-you very much!

[@RedlovesThunder]

Also, I hate the wheels....originals on the '99. But I LOVE yours.....where would I get those..have any idea on the cost?

[@RedlovesThunder]

@@CarGuyV8 From what I can tell, the difference would be around 15 mph. Since this is a '99, all I would need is a tune....no speedcal stuff?

[@CarGuyV8]

@@RedlovesThunder A computer tune is all that’s necessary to change speedometer reading. These wheels are actually factory 01-04 mustang GT wheels. I pulled them off of my old 02 GT.