Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2189698
11/04/16 09:59 PM
11/04/16 09:59 PM
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Joined: Dec 2014
Posts: 5,969 ohio
ruderunner
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The big rear axle from the factory was the 9.25. Small axle was the 8.25.
Rumor of some 5 lug Dana 60's used in 70s vintage big block trucks but I've never seen one. Most Dana 60 are 8 lug.
Unless you're making lots of power the 9.25 should be adequate, I'd upgrade to a crush sleeve eliminator.
Angry white pureblood male
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2189765
11/04/16 11:15 PM
11/04/16 11:15 PM
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Joined: Sep 2011
Posts: 2,042 colorado
savoy64
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i think the 5 lug dana 60 were used only by IH------94-01 mexican ramchargers use a heavy duty dana 44---at about 120k my 2000 mexican spit out the dana 44--i upgraded to a 2002 9.25 disc brake from a 1500 truck.....bob
Last edited by savoy64; 11/04/16 11:16 PM.
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2189929
11/05/16 11:01 AM
11/05/16 11:01 AM
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Joined: Dec 2014
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ruderunner
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IH, Ford and Jeep used them in late 60's and early 70's heavy halfton.
An 8 ug 60 rear can be bolted in, but you'd need different wheels front and back unless you swapped the front to 8 lug as well
Angry white pureblood male
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2190558
11/06/16 10:44 AM
11/06/16 10:44 AM
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Joined: Dec 2014
Posts: 5,969 ohio
ruderunner
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So we get to the question of2 or 4 wheel drive?
Angry white pureblood male
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2194507
11/11/16 01:39 AM
11/11/16 01:39 AM
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Joined: Jan 2003
Posts: 10,670 Freeport IL USA
poorboy
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The loads on the "C" clip axles at the C clip probably isn't very high under normal conditions. If you are circle tack racing, or doing hard corners on blacktop, constantly, the C clip may be a weak point, at some point, maybe.
Probably the weakest point on a 9 1/4 is the axle bearings running on the axle surface, or the crush sleeve at the pinion gear collapsing and allowing the drive shaft flange to loosen up and drop the pinion back into the housing. Those are the two most frequent failures I've seen on Mopar 9 1/4 rear ends, and for as many of these rear ends as I've seen, it probably wasn't much of an issue.
I would not be concerned with a 9 1/4 under a Ramcharger with a big block, unless drag racing was the main intended purpose. Regardless of the opinion of many on this board, a 9 1/4 is a tough rear end. Gene
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2195038
11/12/16 01:57 AM
11/12/16 01:57 AM
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Joined: Jan 2003
Posts: 10,670 Freeport IL USA
poorboy
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Dono, OK, so I ASSUMED the guy wasn't going to enter his truck in a demo derby, or I would have included that with the disclaimer of circle track racing, and consistently doing hard cornering on blacktop.
Thanks for the tip on demo derbying a 9 1/4 though. Should I decide to enter one with a 9 1/4, I will add the extra step to build up the ends of the C clips so they won't fall out. How many times to they take a direct hit before they fall out anyway?
Under normal driving conditions, and a few trips to the drag strip from time to time, YES, I see no reason a 9 1/4 shouldn't be under that Ramcharger. Gene
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2195157
11/12/16 02:02 PM
11/12/16 02:02 PM
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Joined: Sep 2011
Posts: 2,042 colorado
savoy64
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i have a narrowed 9.25 to A body width with 8.75 axle ends to eliminate the C clip---you have to buy a custom axles for it-----drag race guys have to use a C clip elimination kit and the ford 9 inch axle end is the most common one to use--(-you can use 8.75 axle ends also like i did)----my axle runs a 2.7 posi that i first envisioned as a bonneville axle for my 64---it now is under my 50 hudson as a cruiser set up......
Last edited by savoy64; 11/12/16 02:03 PM.
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2199193
11/20/16 12:20 AM
11/20/16 12:20 AM
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Joined: Aug 2006
Posts: 8,064 Iowa
76dodgeboy
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Mexico received D60 rears in 5lug. Otherwise trucks only had 8lug D60s for Dodge.
Last edited by 76dodgeboy; 11/20/16 12:21 AM.
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Re: Heavy rear for mid 80's ram charger?
[Re: savoy64]
#2200312
11/22/16 12:40 AM
11/22/16 12:40 AM
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Joined: May 2003
Posts: 1,751 Graham, WA
Polarapete
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here is hoping your rear is a 5 on 5.5----and either you go to a stock dodge truck 9.25 or pony up money to have someone build you a custom dana 60..... If you can find a Jeep Gladiator with a Dana 60-2 in back you are nearly there. The casting in the case web says 60-2. I have one of those units and had the drivers side axle tube and axle narrowed by 6". The axle shafts take Set7 Timken tapered roller bearings and are 35 spline, stock with a 5 on 5.5" bolt circle. I was going to put it under my '87 D100, but I bought a '98 Ram 2500 and sold the D100. Now I will probably put it under the '72 Cuda and narrow it again with different axles & brakes. The attached photo is of the Jeep that uses a Dana 60-2 rear with 12" brakes and 5 on 5.5" bolt circle. If you use 16" wheels they will clear the brake drums.
Last edited by Polarapete; 12/02/16 08:25 PM.
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction 1998 Ram 2500 QuadCab, new daily driver. 2008 Honda Element 2014 Carry-On 7x14 Cargo Trailer
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2205174
11/30/16 12:41 PM
11/30/16 12:41 PM
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Joined: May 2004
Posts: 4,920 Joplin, MO USA
Robbins
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I put an 8 3/4 rear in my 86 RC 2wd with the last few years that had the 5 on 5 1/2 pattern axles(72 through 74 4wds?).
I'm now running a Dana 60 8 lug rear with 8 lug(heavy 3/4 ton front end) up front....all from an 85 2wd 1 ton. NOT that the 8 3/4 failed. I just like lots of woe...with the bigger breaks....lol.
I'm not a fan of the 9 1/4.....it seems that I've seen more of them being replaced than 8 1/4s......but what causes them to fail......who knows.
As in was it operator error......like taking them under water or letting them leak until there is no oil left, again my two cents.....which around here doesn't mean much. LOL
Moparlee
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Re: Heavy rear for mid 80's ram charger?
[Re: Dono]
#2205195
11/30/16 01:25 PM
11/30/16 01:25 PM
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Joined: May 2003
Posts: 15,487 Florida
scratchnfotraction
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most issues I have seen or had have been the pinion nut coming loose/pinion bearing wipe out/crush sleeve adjustment or lack of.
every one I invested in got a new set of bearing and set up with shims and solid spacer. never issues after that with them.
I prefer the 8 3/4 for gear change and I can run non adjustable green bearings and Moser axle any size needed.
30 min R&R and either a 2.76 3.23 3.91 gear ratio under my bench.
Last edited by scratchnfotraction; 11/30/16 01:27 PM.
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Re: Heavy rear for mid 80's ram charger?
[Re: scratchnfotraction]
#2206630
12/02/16 08:35 PM
12/02/16 08:35 PM
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Joined: May 2003
Posts: 1,751 Graham, WA
Polarapete
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I have revised my post about the Dana 60-2 and included a reference photo. See it a couple of posts above. I also have a 9.25" truck rear in my stash and when I have a chance I will drop it off at the recyclers. Years ago, at the yard I worked at, we took in a Dodge truck that had a 9.25". The pinion nut loosened and when the axle seized up the truck was wrecked
1986 Dodge Ramcharger 440 2wd, Bracket Racer Under Construction 1998 Ram 2500 QuadCab, new daily driver. 2008 Honda Element 2014 Carry-On 7x14 Cargo Trailer
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