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LOW TRANNY GEARS ROCKY

Posted: Thu Mar 17, 2011 12:51 pm
by TWISTUP
HEY, I went fourbyn yesterday and noticed my low range gearing sucks in my 90 rocky f75 sports afield turbo wagon. Did i hear correctly that you can use f20 gears t lower the low range gearing? and or could i adapt a hilux tranny instaed to fit after market gears.

thanks

Re: LOW TRANNY GEARS ROCKY

Posted: Sun Mar 20, 2011 10:26 pm
by Spartacus
f10 i think diff gears slot in.

Re: LOW TRANNY GEARS ROCKY

Posted: Mon Mar 21, 2011 7:31 am
by TWISTUP
hmmm, sounds easy enough. I wonder if I could adapt a hilux tranny.could get heaps of low low gears for it. i think my bro has one.

Re: LOW TRANNY GEARS ROCKY

Posted: Mon Mar 21, 2011 10:34 pm
by Spartacus
i think if you pull the transfer case from the gearbox you can see the output
is like a splined cup.

if you can cut the hilux mounting face off and replace with daihatsu bolt
pattern, all i guess you need is a machined spline to go into the daihatsu
"cup"

Ps its been a while - cant remember if its the right gearbox im thinking off

Re: LOW TRANNY GEARS ROCKY

Posted: Thu Mar 24, 2011 8:37 pm
by dai-hard
F20 gears wont fit into a f75 transfer. They are smaller and not as strong.
When i blew my transfer i was going to use the parts out of a f20 box i had but they were not even close.

Re: LOW TRANNY GEARS ROCKY

Posted: Sat Mar 26, 2011 6:20 am
by parrotveasey81
have you put petrol r&p in as that will lower the gearing

Re: LOW TRANNY GEARS ROCKY

Posted: Tue Apr 05, 2011 10:07 am
by TWISTUP
i really wanna lower the low range only. thanks anyway.
cheers for the info guys!!!!!
i will keep you posted! .... pun of the year. or not.

Re: LOW TRANNY GEARS ROCKY

Posted: Wed Jun 22, 2011 10:51 am
by Brenton
hey mate did you end up trying to fit the hilux transfer ? any news

Re: LOW TRANNY GEARS ROCKY

Posted: Thu Jun 23, 2011 12:50 pm
by MightyMouse
Another smarter option ( IMO anyway ) would be to run a divorced Sierra Tcase

Run a short saft off the output shaft of teh Feroza box to the Sierra TCase.

Absolute heaps of ratios for a Sierra TCase and not stupidly heavy.