• RME Gear & Apparel

D30 and D35 Gear swap to 4:10's On 97 TJ

tagaustatoppen

tagaustatoppen

1997 TJ
Location
Heber, Utah
Ok Last night I did something to the rear end of the jeep. I am going to go look at it now. My thoughts are if I have to buy new gears, why not get 4:10's. I understand that if I change the gears to 4:10's that I will need to take the Xfer case to a 4:1 gear ratio.

(side note I want to change the axles and I have several available to me I have a neighbor that someone dropped a 72 Chevy 3/4 ton off in his lot who told me I could have the xfer case and axles off it. My problems is that right now I use this jeep as my one vehicle. I don’t know much about this truck other than its a 3/4 Chevy made in 1972. I also have a Chevy 10 bolt off an 82 burb that I can get my hands on.)

Is there anything I can do with the xfer case out of the Chevy? Could I use My current suspension if I chose to change the axles? Where would I measure to find out?

If I don’t end up changing the axle(s) now, then I have a whole other list of questions. I really need to understand how this works actually. If I buy a locker does it come with the gears? (Likely not) If it does not, then I would think there are several manufacturers of gears, which do I really want? Is one maker better than the rest I guess is what I’m asking? Once I get the gears I want to have selectable lockers. I know there are lots of choices. I have even seen several in action. I don’t really want to fork over the cash for the ARB’s. Are there any that have a mechanical mechanism for engagement and disengagement? I know that I could get the electrical ones. Which might be the way that I would choose to go? Any thoughts and Input would be appreciated.

Tyler
 
Last edited:
str8axleguy

str8axleguy

Registered User
Location
Ogden, UT
I am definately not an expert, but you don't need to change the x case ratio in order to change axle ratio's. They work independant of each other, you will need to change both front and rear ratio's in order to still use four wheel drive. Lockers by themselves do not come with gears but I know that some vendors offer a complete package to change gears and get a locker at the same time I believe you will need to change the carriers in order to run 410 gears and a locker is an easy way to accomplish this.
 
wildkid

wildkid

...Jeepless...
Location
By Cabela's
Changing diff gears does not imply the need to do anything to the T-case gears. The only thing to remember is that whatever you do to one end, you must do the same to the other (gear-wise that is)

The Chevy axles don't do you much good on the TJ as the Chev stuff has the front diff on the pass side. Your TJ has the diff on the driver's side. Short of rearranging your exhaust to clear a driveshaft and swapping in a pass side front output t-case (not to mention trying to adapt the tansmission to the t-case...), your best bet is to look for a front end from another source...ford, early wagoneer, early bronco, even a rubicon...?

As for lockers, your question is very open-ended. There are many options to look at. Everyone has a different angle on it. Depends on intended use and of course $.

I personally had a TJ with the d30 and d44. Both had 4.56 gears and ARB lockers. This fit my needs at the time. Looking back, I would rather have had a detroit in the rear...oh well.
 
tagaustatoppen

tagaustatoppen

1997 TJ
Location
Heber, Utah
upon closer inspection I found that I split the carrier and one gear. after driving an hour I had destroyed all the other gears in the back. I wanted to go with a decent locker and couldn't find what I wanted for the D35. I decided that I was just going to build a d44 so that i could have more choices. I ordered 4.10's for both sides and i decided on the eaton. for the rear. i still dont know what i am going to do with the front but I know that I will have to wiat until I get more money to do what I want.

The question now is what to do with the front? I need either a new carrier for the 4.10 ratio or I need some type of locking device for the D30. I have ran the truetrack (which is still quite new and will be for sale soon) and would consider going with a limited slip but i am leaning towards a locker which untill i got the front changed would hinder my snow trips. What else can I do with the D30? Ideas?
 
Last edited:
You must log in or register to reply here.
Top