2 Questions about regearing

[DaFinksta]

First question: How do I tell what stock gears I have? ('92)
Second: I am going from 31's to 33's...will I need to regear?

 

[CodePoet]

1) Door sticker, look under the box labled "Axle", take the code and do a search here
2) Will depend on what the answer is to #1.

If you have 3.27's...yes, regear.
If you have 4.10's (not extremely likely be possible) might be ok without.

 

[DaFinksta]

Well, I got the 3.27's. I was planning on going with 4.10's when I bought my lift and tires. Where can I buy these new gears?

 

[CodePoet]

4wheelparts is a place to start...then just start looking around. I would do a search. You may want to gear lower than 4.10 though

 

[DaFinksta]

I found two place to buy them...are all differential covers the same size in 1st gens or what size would a 92 be with axle code 42? I could go outside and measure it myself, but it's been raining all day here in Virginia :-/

 

[davidmmm69]

get the clear cover. i seen one truck on this site that looks awesome and the clear cover makes it look amazing..

i am going to be buying one of them pretty soon.

 

[DaFinksta]

I need to know what size cover so I know which ring/pinion set to get for my new gears.

 

[Creager]

any cover for a Ford 8.8 will work (any cover for a mustang, ranger, f150... Anything that has a Ford 8.8)

**** ive seen guys running the IRS cover on their solid axle 8.8 and it works.

with 33"s you might be happier with 4.56 over 4.10

i went from 3.27 to 4.56 and WOW i love it. its pretty close to stock, actually a little above. ~2500 rpm at 65 though. might be kind of high if you do much interstate driving.

4.33 would probably be perfect.

 

[TheRookie]

they didnt offer 4.10's in a first gen.

You will indeed need to regear

 

[Xzibit A]

any cover for a Ford 8.8 will work (any cover for a mustang, ranger, f150... Anything that has a Ford 8.8)

**** ive seen guys running the IRS cover on their solid axle 8.8 and it works.

with 33"s you might be happier with 4.56 over 4.10

i went from 3.27 to 4.56 and WOW i love it. its pretty close to stock, actually a little above. ~2500 rpm at 65 though. might be kind of high if you do much interstate driving.

4.33 would probably be perfect.

the IRS cover works awesome i chopped one up for my truck and ther is one on my friedns truck already also one on another friends stang, it makes it very nice as there is a drain ans a fill hole and you can put a little more fluid in.
as far as regearing go with 4.56s.

 

[unclemeat]

I may be wrong, but I believe that the 3.27 case is too small for a 4.1 or 4.56 gear. I belive that you will need a larger differential case, not a big deal. It may even save you some money over trying to install them in the truck.

 

[Rhett]

I may be wrong, but I believe that the 3.27 case is too small for a 4.1 or 4.56 gear.

??? Axle spline counts can be different but the diff casing? I have always thought the 8.8 casings were all the same size. I'd like to know...

 

[unclemeat]

Not the rear the front differential. All the explorer 8.8 are 31-spline, and will fit a 4.56 gear just fine.

 

[Creager]

The Rear has no carrier breaks. Infact no Ford axle does, they all use thick gears. Any ratio will work with the stock carrier.

The Dana axles are a different story though.

 

[j602]

Go with 4.56. Great for 33's and 35's if you ever want to move up. No carrier break in the 8.8, and all covers are the same. I would advise on getting the gears through the shop who does the install, that way they are liable for the quality of the product.