I have a 99 F-150 with the 4.6L in it.

I wanted to know if there is a high performance 5spd thats a direct replacement for the one that I have. I know I can go larger, but that would require me to change a bunch of stuff including the driveshaft.

If not, then has anyone changed their tranny to a better one? If so, can you tell me everything that you did to make it fit.

thanks

 

whats wrong with the one you have ?

 

Yeah, you trade the truck for a mustang.

really there is nothing that I have heard of as being a direct fit. fabrication required.

 

Whats wrong with wanting sporty feeling shifts in a truck? Not everyone wants to tow or go offroad with their truck. I for one like the looks and roominess of a truck but want the quickness of a sports car! Havng a smoother and less notchy feeling tranny would be great! They should have two types of manual trannys: 1. truck style for truck "tradionalists" and 2. sporty/smooth for everyone else . Yes my truck is lowered and yes I still use it for truck duties occasionally.

 

what do you think about a 5spd out of a 4.6 mustang? that might work

 

Besides the fact that the 5 spd tranny's can't hold that well when you add more power to the engine, say with a nos kit or other power adder. the tranny runs fine, but I would like different ratios for the gears for better performance, not such big jumps in between the gears.

Yeah, I know I could go and get a mustang, and once the mustang isn't enough, I could get a cobra R, and once that's not enough, I could jump to a porsche, and once that's not enough....

Naaah, I'll stick with the truck. I'm not gonna abandon ship because of one bump. Well maybe a few bumps, but whatever.

Besides, a mustang thats able to do less than 14 on the quarter mile isn't really amazing, but a truck that can do it is. Thats my goal.

I got pulleys, filter, chip, 4.10 gears, 345/55/16s on 16X10 rims, 300 lbs weight reduction, corbeau 16 lb seat, and ram air (not that it really works, but whatever). I want to get NOS, or a Turbo on it within the next few years, but I know that I gotta beef up the tranny, and quite possibly, work on the internals, fuel system, and other small stuff.

 

The 5spd out of the mustang is a pretty good choice cause I know that it'll bolt onto the engine just fine. I was just hoping that there was one the same size as the one that's in there now.

I'm more and more leaning towards the mustang tranny's.

 

i think i read somewhere that the shifter on the mustang tranny is in a different location than the one on the trucks ( further forward or backward, dont remember). But if you find out otherwise, let us know! That would open up all kinds of possibilities...
i saw that you have 4.10 gears. what rpms are you running around 65-70 mph? i would like to get some 4.10's myself, but i do a fair amount of highway driving. as long as it isn't too bad, that might be what i'll start saving for next!

 

The 4.10, along with the 31" diameter tires, allow me to drive at highway speeds at about 2800-3000 rpm at fifth gear.

Yeah, i know that with a different tranny, the shifter will be at a different location, which is fine by me. My focus is on performance, whatever the cost may be. thanks.

Here's a link to my website: http://www.performancetruck.cc

just click on Nelson's truck to see all that i've done to my puppy.

 

yes, the shifter on the stang is at the rear of the tranny. The truck is in the front. so cut the floor and seat/centerconsole and do the old shelby cobra shifter trick (turn the handle around)

The clutch will be different. They are using 10.5 or 11" units depending on the model. My 5L uses a 10" clutch.


Other than that, you will most likely need some conversion for the VSS and speedo gear/cable. Fab the tranny mount as needed since it will most likely need to be relocated and modify the driveshaft as needed.

Still, if you want a sports car, ford offers you the mustang. If you want a mustang in a pickup, they offer you the lightning. Not a lot of choices out there for use manual enthusiast.

 

Thanks for the tip.

cutting the floor of the truck isn't a problem, its all those little things that don't occur to me until once I take on the project that worry me.

Yeah, I know I could of gone for the mustang or the lightning, and i'm not gonna tell you that i'm out to prove something with the 4.6L. Its just that i've grown so attached to my truck, and i've worked so hard on it, that its toooo hard for me to give it up. besides, at a price of 16900, I could do lots more stuff to this truck, and it would still be cheaper than a lightning.

But if I could have had a lightning from the start, believe me I would... I love them lightnings. Just wished that they'd come out in different body styles. Not much of a fan of the flareside trucks.

 

Dissonance,

If you do pick up a tranny from a mustang you will not improve on the capacity of the unit. If you build your motor you will start breaking things. Don't forget our trucks are about 2000 lbs heavier than a Mustang.

Regards

Jean Marc Chartier

 

Dissonance,
I've been wanting to talk to someone who installed 4.10's in a 5-speed. I'm thinking of doing the same thing. I know from reading the description of your truck on your page that mileage was not one of your primary concerns with the way you are building it, but I wondered if you noticed a huge, or even minimal, reduction in mileage when you swapped the 3.55's for 4.10's? With the 5-speed's OD ratio, on 30" tires, 4.10's put the revs at about 2700 @ 70 mph. Was it really noticeable, sound-wise? I'd bet if you had some decent exhaust it would be pretty loud at cruising speed. I know, I know, that just means you spend a little more on a slamming sound system, right? Seriously, let me know how you've liked that gear swap and if it's worth the extra $$ at the pump for the added oomph. Oh, and I meant to ask, why did you go with 31" tires? That essentially reduced your 4.10 to a ~3.97 or so. Just curious. Thanks for the info.

 

Crash,

Check out the torque ratings of the Mustang tranny. Some where around 350 lbs/ft. Do you want to spend all that $$$$ on a tranny that will not hold up. You have been fortunate to not destroy your M5OD in your blown 4.6s. How many "Blown" miles did you have on the trucks? BTW could you ask your friends what the torque rating on the M5OD actually is?

Regards

Jean Marc Chartier

 

Fordman

Yeap, the gas mileage did go down quite a bit, and with my 40 series flowmaster, it has a beautiful sound at highway speeds. I checked my RPMs again today on my way home, and I messed up. at 60-70 mph, I'm at around 2400 rpm. My speedometer has long been disconnected... I know lots of you guys frown on this, but hey... so i don't really know exactly how fast i was going at 2400 rpms. I was driving with traffic on the expressway.

I know there's a mathematical way finding this out, but i've got a headache right now...

I agree that the Mazda tranny is a POS. If yours works great, then i'm happy for ya. I want a tranny that has gears that aren't so far apart from each other, and thats designed for abuse.

Been thinking about going with an automatic, but not sure.

One other thing, our trucks aren't 2000 lbs heavier than a mustang. they are around 1000 lbs away from a mustang. My truck is little over 4000lbs, and a mustang with a V8 is about 3200-3500. other trucks, like the SC, long bed, might be closer to 2000 away from the mustang, but I don't think it even reaches that.