I just orderd 4.10 gears ... They sent me 373s and i called went through the BS and they send me 4.10's , i looked at the 373's and they looked a little different and had ingraved 373 Ford on borh the Ring and Pinion .. I checked the 410's and they dont say anytihng about Ford or 4.10 on them, They also are a semi gloss black , the 373's were grayish ... Im just hopeing that there really FRPP gears .. Are they suposed to look different or what? the Box was a different box also ... Are the 4.10s suposed to be a little smaller ? thx...

 

every gear set I've seen had the ratio stamped on the edge of the ring gear.

 

Yeah thats what i figured .. These seem a little sketchy idk wtf to do now

 

Where did you get them? I'd send it back and get a set from a reputable company like Randy's or your local speed shop.

 

Well i found out there Motive gears in a friggin Ford Box ... I called this hotline number in the gear box and the dude said that ford stoped making 4.10's and 355's so motive makes them now ... i tihnk thatts BS ... so i payed for FRPP gears and got motive , fist they were 373's now 4:10's wtf!.... I mean should i just keep them or send em back ?

 

Count the number of teeth on the ring gear and divide that by the number of teeth on the pinion..that'll give you you're ratio for sure.