9.5" FJ80 are 30 spline from the factory....ratios are 3.70, 4.11, 4.56, 4.88 and 5.29....so if he's looking for a front axle and trying to match the factory rear....this is a good option.
The Tundra 10.5" has 36 splines...no aftermarket locker options though. I don't know of a factory 35...
Okay, then I'm not following (sorry for being dense).....
He's running a Toyota rear axle....how does putting a Dynatrac front 60 in help with his major complaint of non-matching gear ratios if he goes deeper than 4.88? 5.13 and 5.38 are the next options for a RC60....and his Toyota axle is...
Are you talking about buying a Dynatrac rear 60? I'm assuming so based on your trying to match the ratios with the 44 front. Just want to be sure.
BTW, DO NOT buy a high pinion/reverse cut Dynatrac 60 for the rear....get a standard rotation/low pinion for a rear application.
That said, it...