i am getting 33's within a month or so, and i am going to regear as well, but when i buy gears, do i just need the ring and pinion or do i need to buy third members too?

 

you can just buy the gears them selves, but you will have to have them installed by some one experienced

 

where can i get them from cause whenever i try to find gears all that comes up is ring and pinion

 

The ring and pinion is the gears. You will need those and the setup kit.
http://www.marlincrawler.com/differe...ilux-setup-kit
http://www.marlincrawler.com/differential/ring-pinion
Use the solid pinion spacer http://www.marlincrawler.com/differe...ion-spacer-kit
And have them professionally installed
Also you may be able to find better prices.

 

alright thanks the only other thing i need to ask is do i need diffrent gears for the front or are they the same?

 

If you're shopping for 4.88s (good gears for 33s) and want to do a lot of it yourself or be budget-minded about it, you might consider buying whole thirds from boneyards.

They'll be cheaper than buying the raw gears new and odds are they're already set up fine. If you get one that's bad, it would still be cheaper to buy another 4.88 whole third than to start out with new gears.

Whatever you do, you need to match the gears front and back (ferexample, buy 4.88s for front and back).

 

i know that i need 488 for front and back, but is there certain gears for front and certain gears for the back or are they all the same?

 

there the same, you just need 2 8" rnp sets and 2 matching install kits for an 85 4cyl 4x4.

i buy diff parts from here http://www.justdifferentials.com/

 

not sure about solid-axle, but (early) IFS are 7.5" front and 8" rear.

 

Two 8" 3rd members with 4.88s already in them will be very tough to find in a boneyard - almost impossible.

You could buy "new" thirds from a place like marlincrawler.com or eastcoastgearsupply.com and you can choose the gear ratio you want and while you're at it, have them throw in whatever kind of locker(s) you like. Most people with basic mechanical skills can do this job themselves and Eastcoast will let you ship your old thirds back to them for a core - after you get you new ones installed!

Or, you could just buy the R&Ps and master install kits and pay for a pro set-up. Either way, it's expensive and since there's no better time to install a locker or 2 than when you're regearing, most people (myself included) just save up and do it all at once.

BTW, here's some diff info:
http://home.4x4wire.com/erik/diffs/

 

yeah thats what i was thinking about doing. i might as well do it all at once

 

those setup kits are expensive. are they required to do?

 

Are you talking about the master bearing kits? If so, they aren't absolutely necessary, but you may find yourself needing to go back in there in the near future to do the bearings. So doing them now would save the hassle. If they are the original bearings in yours, then I would definitley do them now.