View Full Version : gear sizes

01-29-2006, 05:31 PM
so, i have always thought that when toyota changed to ifs in 86 that they changed the gear size to 7.5 for ifs front and 8 in the rear. am i not right??? i just sold my 4.10's from my 89 to a guy with an 87 pickup and he said they looked smaller then his old gears. he said he put his rears in the front???? but an 8" couldnt fit in a 7.5 could it??? am i just missing something or what.

01-29-2006, 07:08 PM
something doesnt sound right... unless he had sas

01-29-2006, 07:40 PM
yea ifs fronts are 7.5 and rear is 8" the V6 rears are also 8" but the gear is thicker

01-29-2006, 08:02 PM
solid front axle uses the same 3rd & gears as the rear

01-29-2006, 09:29 PM
no he has ifs in the front as well, swapped in a 350. im still confused, just have to wait and see if he calls back. thought i was missin soemthing but that didnt sound right at all