[Guest]

currently the d30 and d35c i'm running are stock 3.07 gears. what i'm wondering is what is the highest gear ratio i can run? 3.55, 3.73...or what?

thanx

'89 XJ
4.0L
4" Trailmaster lift w/Trailmaster Invader SS shocks 31x10.5 Goodyear M/T
'91 Oil Filter setup w/K&N filter

226000 km and still going strong...most of the time

 

[Guest]

you meen lowest? 4.56 for sure and maybe 4.88 yea i think 4.88 SCRAM

The moment you are born you start to die so buy A Jeep and play hard!!!!!

It's All Out or Nothing At All!!!!!!!

 

[Guest]

sh#@, yeah i know i meant lowest, i noticed that after i had already posted it,

i had some guy tell me that i would have to change the diff housing if i wanted to go to a gear ratio lower than 3.55 from my 3.07s, so i just wanted to know if he was right or not, thanx for the input

'89 XJ
4.0L
4" Trailmaster lift w/Trailmaster Invader SS shocks 31x10.5 Goodyear M/T
'91 Oil Filter setup w/K&N filter

226000 km and still going strong...most of the time

 

[Guest]

I think he was nuts lol!! the only change would be the carrier which is no big deal cause you got it out anyway. Good Luck man. SCRAM

The moment you are born you start to die so buy A Jeep and play hard!!!!!

It's All Out or Nothing At All!!!!!!!

 

[Chris_MJ]

You'll have to change the carrier, but not the housing.

'88 MJ SporTruck
365K on 2.5L (Energizer Bunny Package)

 

[109]

Scram is right...... 4.56 is the lowest stock gear ratio with the Dana 30 and 35c. You can get lower but there is something to consider. The trouble is that the lower you go, the weaker the pinion gear becomes because to get the ratio lower, there has to be less teeth on the pinion. If you need to go lower than 4.56, it might be a good idea to consider bigger axles. /wwwthreads_images/icons/smile.gif