Which drivetrains should have 4.10 gears?

[bighause]

I am beginning my axle hunt for 4.10 gears in a front HP D30 and a rear Ford 8.8. The rear axle I have figured out but I'm not sure on the front. Should I be looking for a 4cyl auto XJ or MJ? The JY I was at yesterday had a 4cyl 5spd XJ and it had 3.73 gears.

 

Am I correct in thinking only the MJ and XJ had the HP D30?

[Geonovast]

Any 4 cylinder 5 speed will most likely have 4.10

 

Later 4 cylinder autos will most likely have 4.10, earliers might have 4.56. Not that you'll find a lot of 4cyl autos.

 

4 cylinder with a 4 speed will most likely have 3.55, so keep an eye on that.

[dasbulliwagen]

Any 4 cylinder 5 speed will most likely have 4.10

 

Later 4 cylinder autos will most likely have 4.10, earliers might have 4.56. Not that you'll find a lot of 4cyl autos.

 

4 cylinder with a 4 speed will most likely have 3.55, so keep an eye on that.

 

This is a guidline for MJ's. which as we all know are few and far between in junk yards, XJ's will be slightly different, but your best bet would be in a 4 cylinder XJ, youll just have to confirm the gears when looking.

[Geonovast]

Hence the most likely.

 

Always check ratio before buying an axle.

 

And for your other question, XJs had an HP D30 from 84-99, 00-01 were LP.

 

All MJs came with a HP D30.

 

YJs have a HP D30, but they're not much use to you unless you love fab work.