how many splines are in the 7.5" of 88 firebirds 3.42 ?
i just got a aqua blue 88 firebird given to me and im gonna rip it apart for goodies like the 700r4 and 3.42 and RH fender and doors and lights and stuff

i want the 3.42 rear for the 82 t/a thats got crappy 3.08 or 2.56 and thm200c

thanks for anything

 

26

 

crappy, hmm,,


opinion wanted: wopuld you save anb axle that was only 26 spline only because it was better ratio than what you currentlky have ?

thanks

 

Maybe....

In your case, one 26-spline unit with 3.42 gears to replace a 26-spline unit with {gag} gears, it's a no-brainer. I'm even qualified to figure that one out, since I have no brain.

Under the circumstances, I'd say go on ahead and swap it.

 

hmmm.........

 

any other thoughts before i fire up the torch tommorrow ??

thanks

 

yeah, heh, unless im too late...

change the axles, posi unit, and gears.

 

Wait! I think 88 and up had 28 spline axles because I have been through this axle search before.

 

88- up, hmm...

anyone 100% confirm or deny this ?

thanks

 

89 and up is when GM started the swap of differnt axels. but in 89 u could also get a camaro or firebird with 26 or 28 spline axels. i think thats also when the G92 option came into play but im not sure. could anyone varify that?

 

crappy, hmm.,., oh well 3.42 is alot better than the possible 3.23 which is lowest ratio the 82 t/a is possibly going to have


while im here again, does anyone know if the 28 spline axle shafts neck down further or less than 26 spline shafts ?

whats the smallest that either neck down to anywhere on the shafts of both splines ? this wouls be basically more important as far as strength than how many splines..


thanks