Swapping in a D30 haha

SteveJcoYJ · 07-08-2009, 06:09 PM

So on my front axle the ball joints and tire rod ends are shot, the housing is all rusted out and so are the axle u-joints

I found a d30 4:10's with low miles on it for 200$, i figure i'll buy it and replace everything and paint it. And then swap it in

its out of a 92' and mines a 91' with 4:10's, just wanted to ask if i'm missing something or is this a direct blot up ?

and whats the best stuff to paint them with after sanding off some surface rust?

EDIT: i already have 4:10's, this isn't for the purpose of re-gearing

**jbolty** · 07-08-2009, 06:12 PM

bolt's right in.

satin black rustoleum is the best match

jeep95xj · 07-08-2009, 06:16 PM

Again bolt right in. BEST paint would be something called POR15 Costs about $40 a pint sticks to rust very well nd NEVER comes off. Painted the whole frame, springs, axles, EVERYTHING on a 47 willys with it 7 years ago. Jeep has been sitting outside for those 7 years. Not a spot of rust is coming back through. Even did the tub with it before going desert camo

SteveJcoYJ · 07-08-2009, 06:46 PM

well i did my whole frame in eastwood rust encapulator, which is the same as por basically just my preference

i just thought maybe there was a krylon heavy duty extreme off road diff paint out there people were using

jeep95xj · 07-08-2009, 08:23 PM

Krylon works but the rust will come through with in 6 months if even that. You would have to totally strip the axle down to use krylon. Thats whats great about the POR15 it paints over all the stuff you would normally have to take off.

SteveJcoYJ · 07-19-2009, 10:39 AM

i finally got around to giving the rear a look over

i noticed that fluid leaked out of the pinion seal badly, like gushed out.
Then i pulled the cover and wow the ring gear is all chewed up.

i'm no expert gear installer but here's my question. To replace the ring gear is it just a matter of undoing the bolts to the carriage and replacing and putting it back in ?

Also, the yolk gives like a 1/4 inch in and out if i pull on it, would this be solely attributed to the bad pinion seal ? or do i have more serious problems

speepdaedeesi · 07-19-2009, 10:57 AM

+1 on POR 15, looks good and sticks on for the long haul.

my 30 on cheveep looks pretty sweet. even got a nice custom diff cover on it.

SteveJcoYJ · 07-20-2009, 03:07 PM

the paints the least of my worry's now that i know what i'm really dealing with internally

**Louie4** · 07-20-2009, 03:14 PM

I regeared my D30 and D35 just recently. It sounds like you'll need to replace the whole shabang in the rear. If that's the case you'll hear a lot of guys telling you to get an 8.8 with the 4.10's that came stock, which is what I will tell you too. There is a pic that Mean Max put up with all the 8.8 axle codes. If you want to regear yourself beware. Its a major PITA.

SteveJcoYJ · 07-20-2009, 03:51 PM

i just did an 8.8 in my buddies jeep last weekend

i'm waiting for my dad's mountaineer to die so i can take the one out of that

however, my d35 is fine. i'm trying to fix a d30 i have so i can swap it in my jeep to replace the existing one.

but i'm finding ring and pinion sets to only be like $100 to $300

and the pinion looks fine, so i'm looking at it i don't see why i can't just undo the two straps and pull the assembly out, take out the bolts on the gear an remove/replace, and button it back up. I would just try it but every one woes about gearing so i'm guessing this should be more complicated then i think.

**Louie4** · 07-20-2009, 03:58 PM

Quote:

Originally Posted by SteveJcoYJ

i just did an 8.8 in my buddies jeep last weekend

i'm waiting for my dad's mountaineer to die so i can take the one out of that

however, my d35 is fine. i'm trying to fix a d30 i have so i can swap it in my jeep to replace the existing one.

but i'm finding ring and pinion sets to only be like $100 to $300

and the pinion looks fine, so i'm looking at it i don't see why i can't just undo the two straps and pull the assembly out, take out the bolts on the gear an remove/replace, and button it back up. I would just try it but every one woes about gearing so i'm guessing this should be more complicated then i think.

If you're going to replace the ring and pinion why not go ahead and replace all the bearings and seals? You'll have to replace both the ring and pinion because they have worn together. That being said you'll have to at least press the bearings onto the pinion. You might be able to get away with it but why take the chance? You'll save money by spending $100 on an 8.8, some spring perches, and an adapter for the flange. Trust me, the ring and pinion is not a simple unbolt and bolt back in, especially if there is damage to either one. As far as setting up gears, I'm just giving you my own experience. I will never regear my axles myself again unless I get access to a full shop with all the proper tools.