Gear Ratio 4.11--4.10 (1 Viewer)

[tlcmx60]

Hi, i,m going to upgrade my fj60 1982 diff gear and have 2 choice, (4.10 from a 1992 80 complete 3rd member two rear or 4.11 from a 72 fj40 only ring and pinion) Some body can helpme for the best selection, and this fit to my 60?. thanks for your help. and regards from baja.

 

[Godwin]

You do not want the diff from the 72 FJ40. It has a coarse spline pinion and you'll encounter flange differences. Don't know what, if any, stumbling blocks you'd encounter with the FJ80 diffs.

 

[Cruiserdrew]

Use the later one. The 72 is a coarse spline pinion and significantly weaker.

 

[Mace]

92 80 rear is a FF application, you might get a headache with the spiders if you are just swapping in the third..

 

[CardinalFJ60]

I'd look for ones from a 62

I did this on mine...got thirds from a 62. Actually, I got two "front" thirds IIRC. less wear and tear.

HTH

 

[Cruiserdrew]

92 80 rear is a FF application, you might get a headache with the spiders if you are just swapping in the third..

No it isn't. The FF started in 93. The 91 and 92s and some 93-94 have semi-floats.

 

[Mace]

then he should be golden..