Should I buy some used 37" MTRs on bead locks? - Pirate4x4.Com : 4x4 and Off-Road Forum
 
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Old 10-13-2005, 07:14 PM   #1 (permalink)
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Question Should I buy some used 37" MTRs on bead locks?

I have a 86 CJ-7 with the stock D30/D44 axles both 4.56 gears and locked,SOA,35" BFG ATs. (4.0L from a XJ,auto tranny, 4:1, blah blah blah)

I found some 37" MTRs (2 at 90% and 2 at 60%) mounted on 15" 5 on 5.5 bead locks (standard rim converted to 16 bolt locks by Stockton wheel) for $600.

Now my question is should I buy these so I can trash my old ATs/go bigger/get bead locks?

Or am I asking for a world of hurt by pushing my turd D30 over the edge (bigger axles are planned for later)

Thanks,
Jason
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Old 10-13-2005, 07:19 PM   #2 (permalink)
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correct me if i'm wrong...could be newer jeeps...but isnt a jeep patter 5 on 4.5?

Also...you'll probably blow your d-30 first run out...37's are even pushin it on a 44.

i won't flame cuz i'm a newbie also...but this post definitely belongs in the newbie jeep section.
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Old 10-13-2005, 07:28 PM   #3 (permalink)
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CJs (86 and older) were 5 on 5.5. YJ/XJ/TJ/ZJs were 5 on 4.5.

I thought about posting this on the noob forum but there is not much traffic over there yet.
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Old 10-13-2005, 07:33 PM   #4 (permalink)
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You're asking for a world of hurt.

CJ D30 260 u-joint + 37"s aired waaaaay down because you have beadlocks + traction = snap crackle pop.
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Old 10-13-2005, 07:33 PM   #5 (permalink)
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Old 10-13-2005, 08:11 PM   #6 (permalink)
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another senerio:

buy the MTRs and bead locks, drive like a puss until I can get a D44 front and D60 rear.

Or

Say f*ck it and save up for a D60/14 bolt combo and not wast my time on 1/2 ton stuff and 5 on 5.5 rims.
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Old 10-13-2005, 08:13 PM   #7 (permalink)
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Nobody gives shit about what used tires you should buy.
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Old 10-13-2005, 10:21 PM   #8 (permalink)
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Say f*ck it and save up for a D60/14 bolt combo and not wast my time on 1/2 ton stuff and 5 on 5.5 rims.
I like this idea..................
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Old 10-14-2005, 12:00 AM   #9 (permalink)
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agreed...60/14 bolt
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Old 10-14-2005, 09:30 AM   #10 (permalink)
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A soon as you go with the 60/14 bolt you will need 8 lug rims so the 5 on 5.5 will no longer work. I have ran 35's on my D30 for two years now and expected it to brake the first trip out but it never has. Some say they are week and some say they will hold a 37. It is up to you but when you put in your axles the tires and wheels will not work you will need an 8 lug 16" rim.

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Old 10-14-2005, 12:22 PM   #11 (permalink)
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The Hubs, joints, ring & pinion, tierod & draglink will not survive any wheeling at all if you go 37s with a stock 30 front!
The housing and shafts will have issues if you do any decent wheeling
Will probably have issues with the tierod and draglink on the road also so you can't even mallcrawl!
Have fun
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Old 10-14-2005, 12:26 PM   #12 (permalink)
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For $600 is a killer deal, I would buy, then use the money u save to up the front to a Scout 44, and you are good to play.

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Old 10-14-2005, 05:52 PM   #13 (permalink)
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You know, even if you end up not liking the MTRs it sounds like a good deal even if it's just for the wheels unless they're rusty. There is one thing to consider however. Let's say you get the setup and then lunch the Dana 30. Whatever you upgrade to that will withstand the forces generated by the 4.56s will have either 6 or 8 lugs- and there you are stuck with five hole wheels and maybe even with tires you don't like.
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Old 10-14-2005, 08:19 PM   #14 (permalink)
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ive seen a CJ on 37 krawlers on a d30, he just had chromo shafts, he said it worked pretty well

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Old 10-15-2005, 11:47 AM   #15 (permalink)
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I'm looking in to getting some used Yukon shafts shafts as well. I don't want to shine the D30 turd too much but I want to make it last untill I can afford the heavy duty shit.
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Old 10-19-2005, 12:14 PM   #16 (permalink)
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Well the yukon 4030 shafts with 760X joints are on the way
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Old 10-19-2005, 03:33 PM   #17 (permalink)
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Upgrade the stock tierod and draglink or you will be bending them.
Good luck
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Old 10-20-2005, 06:18 AM   #18 (permalink)
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One more thing.
The factory 5 bolt hubs are junk and will break with those tires on a decent trail.
Need to upgrade to 6 bolt or internal locking hubs.
Older disc brake Dana 30 hubs are good and Ford or Dodge Dana 44 style hubs are better.
Or spend good money on Warn assemblies
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Old 10-27-2005, 03:36 PM   #19 (permalink)
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Quote:
Originally Posted by woods
One more thing.
The factory 5 bolt hubs are junk and will break with those tires on a decent trail.
Need to upgrade to 6 bolt or internal locking hubs.
Older disc brake Dana 30 hubs are good and Ford or Dodge Dana 44 style hubs are better.
Or spend good money on Warn assemblies

I grenaded the stock hubs a while ago. Looked into doing the 6 bolt replacement but was too much work so I went with some super winch hubs.

I'm going to get the wheels/tires and then sell the 37"s for some 35"s.
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Old 10-27-2005, 04:06 PM   #20 (permalink)
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Originally Posted by Jay5.9L
Well the yukon 4030 shafts with 760X joints are on the way
Since you got the alloy shafts, I'd sell those rims/tires or get Scout dana 44's and run them on your Jeep.

Now that you went and got the alloy shafts for the dana 30, you are married to it.

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Old 10-27-2005, 04:12 PM   #21 (permalink)
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Not married but maybe going steady for a while LOL

I am going to go big nuts and get a D60/14bolt/hummer bead locks later on.

The shafts were cheap and my front is already locked and geared. I think of it as just enough polish to keep the turd alive for a little while longer.
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Old 10-27-2005, 04:24 PM   #22 (permalink)
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i dunno if you drive it every day but i'd take into consideration trying to stop those big meats too. my 1/2 ton brakes give me a good scare every once in a while trying to do a quick stop on the street.
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Old 10-27-2005, 04:31 PM   #23 (permalink)
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Good point. That's why I'm considering selling/trading the 37" for 35" and keeping the locks.

On a side note I did upgrade my MC and booster so my brakes work much better than stock. (I almost shat my pants with the stock stuff even tooling around the a parking lot)

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Old 10-27-2005, 04:42 PM   #24 (permalink)
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Quote:
Originally Posted by Jay5.9L
I have a 86 CJ-7 with the stock D30/D44 axles both 4.56 gears and locked,SOA,35" BFG ATs. (4.0L from a XJ,auto tranny, 4:1, blah blah blah)

I found some 37" MTRs (2 at 90% and 2 at 60%) mounted on 15" 5 on 5.5 bead locks (standard rim converted to 16 bolt locks by Stockton wheel) for $600.

Now my question is should I buy these so I can trash my old ATs/go bigger/get bead locks?

Or am I asking for a world of hurt by pushing my turd D30 over the edge (bigger axles are planned for later)

Thanks,
Jason
I'd suggest selling that polished 30 and just getting a Waggy 44 front and call it good. No need going with 60/14 bolt unless you plan some major build up. I would have bought a Waggy 44 for around $100 from pnp or here and then building it with the Yukon 4340 alloy shafts and strong u-joint. Then you can run 35's or 37's on it. Good idea to go with the XJ 4.0L f.i. Did you get the AW4 auto tranny attached to it?

Troy
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Old 10-27-2005, 05:10 PM   #25 (permalink)
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