i have a 98 3 door with the 4.6L and a auto tranny i was wondering what are some cheap power upgrades that acutally help. other then I,H,E thanks for any info..

 

tuners help but your truck doesnt have pi heads so it wont do as much. gears always make a big difference. whether its 2wd or 4wd determines the cost. e-fans. you can build your own, just use the search feature to view other builds. cai and exhaust. long tube headers. cut out all 4 cats and place 2 high flows in place of the front and sell your old cats to a scrap yard for $200. or you can skip all the small stuff and get a supercharger.

 

start with a "gotts intake" and work your way up from there

 

its 2wd what gear would be good? and how do i get it to be posi? with out getting a whole new rear end. i think i have 3.55 gears now. but not sure

 

4:10's will be a good gear...get a detroit tru track..its a very good full posi unit or an auburn
intake
long tube headers/exhaust
p.i head swap w/cams
then get a programmer
e-fans and underdrive pulleys will free up some good hp
little bit o nitrous
last but not least turbo/blower

 

wow thats one heck of a list. i wanna try to stay under 1000 hp if i can lol

 

what size if the rear end in my f150? and how many splines?

 

which differential do you have?

 

just one tire spins.

 

i meant 8.8 or 9.75. i'd go with 4.10 gears and wherever you order them from will ask you what size differential you have.

 

just curious to how much of a power difference off a stop id notice with new gears? i have the 3:55 now. would it be worth the money?

 

Gears are a great mod....I'm going with 4:56's because I'm running a 34" tire. You will benefit from a gear change with your tires.

 

you'll gain alot more torque to the wheels. you will accelerate alot guicker. and fuel mileage would go up around town. and if you follow the speed limit then it'll maybe lose just a little bit like less than 1 mpg on the highway. but most stay the same or get better on the highway. IMO they are the best mod you can do. but it does get expensive for 4x4's.

 

im not sure what size how do i tell if its the 8.8 or the 9.75 and how do i tell what gear i have factory?

 

there should be a couple metal tags on the rear end..get the codes off of it and post it on here