What is the diff ratio on a standard AE86 and AE85?

[matt dunn]

Anyone know what the standard diff ratio is on an AE86 from factory,

or diff code from a build plate and I can work it out.

matt

[frost]

4.1 and 4.3 depending on the model, gtapex was the 4.1 and gtv was 4.3 i think, the three apex diffs ive had have been 4.1 and the one gtv was 4.3
all looked as if they have never been cracked open, if i can find my build plates i'll post them,

[matt dunn]

4.1 and 4.3 depending on the model, gtapex was the 4.1 and gtv was 4.3 i think, the three apex diffs ive had have been 4.1 and the one gtv was 4.3
all looked as if they have never been cracked open, if i can find my build plates i'll post them,

So that would mean there are probably different speedo drive gears available?

[frost]

not sure on that but gtapex was a digital dash so maybe there is a correction factor in it,

[matt dunn]

Wonder what ratio's are out there for the AE85 S series diffs?

[frost]

only silly 3.9

[l1ttle_d3vil]

Wonder what ratio's are out there for the AE85 S series diffs?

were there different series ae85 diffs?

I have two diff heads out of ae85s - no idea exactly what model/year, just know they're from an ae85.
pretty sure they're both different ratios, I can count the teeth on them if you want?

[matt dunn]

Wonder what ratio's are out there for the AE85 S series diffs?

were there different series ae85 diffs?

I have two diff heads out of ae85s - no idea exactly what model/year, just know they're from an ae85.
pretty sure they're both different ratios, I can count the teeth on them if you want?

Yeah if you could. may be keen to buy one if there's one somewhere near the AE86 ratio's.

mine is a 3.73 according to the build plate. S302 code.

[Mr Revhead]

http://www.toyodiy.com/parts/p_J_198305 ... _3304.html

two p/ns there

if you can get a proper copy of the genuine EPC you could use the match off function to look for other options

[frost]

Wonder what ratio's are out there for the AE85 S series diffs?

were there different series ae85 diffs?

I have two diff heads out of ae85s - no idea exactly what model/year, just know they're from an ae85.
pretty sure they're both different ratios, I can count the teeth on them if you want?

Yeah if you could. may be keen to buy one if there's one somewhere near the AE86 ratio's.

mine is a 3.73 according to the build plate. S302 code.

3.73!!! holy crap thats a first, edit:oh wait that sound right, brain click,


85 is 3.7 early ae's are 3.9 ae86 is 4.1 & 4.3

[NZ_AE86]

So that would mean there are probably different speedo drive gears available?

Yep, there are. As far as I know you need to replace the metal drive gear that is splined to the output shaft and the drive assembly that holds the plastic gear.

[l1ttle_d3vil]

Yeah if you could. may be keen to buy one if there's one somewhere near the AE86 ratio's.

mine is a 3.73 according to the build plate. S302 code.

Mine is 3.73 too. Just remembered the other diff head was in my car when I sold it... That one made my speedo about 10km faster (at 100kmh) from memory though.

The one I've still got is completely pulled apart and has a couple of teeth missing too. Gonna chuck it though, so if you did want anything let me know.

[Truenotch]

not sure on that but gtapex was a digital dash so maybe there is a correction factor in it,

Not all GTapex are Digi dash though...

[QikStarlie]

have a diff hanging about in the garden here. will check the code on car tomorrow.