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How strong is the 9.25" rear?

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51K views 72 replies 26 participants last post by  Elwenil  
#1 ·
This is the half-ton rear axle I know the least about.

I've heard its a c-clip axle like the GM 10-bolt and 12-bolt rear axles, which I don't like. The ring gear size is a plus, but any strength plus seems canceled out by the c-clips.

Are there c-clip eliminators available for it?

I want to run a 35x12.50 tire. I'm not the guy who lights up the tires every chance I get and I don't pound the stupid pedal but I do like to get on it now and then and will be doing some mild/medium wheelin' on trails, mild rocks and in light mud. If this axle can handle that then it would be a plus to be able to keep it, rebuild it, re-gear it to 4.10 and drop in a decent locker/limited slip.

What are some of your experiences with this axle?

No guys claiming to be running 44's on a 9.25 with a 400hp 440 winning burnout competitions ::)

And no " a friend of a friend knew a guy who ran 38's on an extreme rock crawler and never busted a c-clip" stories

This truck will have a mild-ish but strong small block, 4.10's and 35's, driven daily and wheeled as stated above. Stories from guys with similar builds would be nice.
 
#52 ·
Yes, close up and detailed pics please.  I'm just having trouble understanding that Ramchargers made for the Mexican market would have a different rear axle than the USDM.  My '88 Ramcharger was built in Mexico but still had the standard 9.25" rear.  It just seems a little odd and with all the D60 "Ramcharger axle" myths already I am going to need something conclusive to change my mind on this.
 
#54 ·
ringo said:
I didn't read all of the posts, but I personally ran a 9.25 with 37" boggers and a nitro'd small block. 5.13s and lincoln locked. I broke one axle shaft but I had slid sideways into a rock and flat-footed kinda at the same time, No other problems. I think people get WAY TOO caught up in 60's and 70's. Soon 33s wont be adviseable without rockwells. For what you are doing, I think you will be fine. I won't say you will never break shit. You are driving an older truck, right? Breaking shit comes with the territory.
Ummm.... last I checked 4.88 was all you can get for a 9.25 and up until 2-3 years ago it was a 4.56.... ???
 
#56 ·
I need pics. I've seen plenty of people call the 9 1/4 a Dana 60. 

Also Cherokee's used Dana 35's till about 96 then switched to Chrysler 8 1/4.  Grand Cherokee's used Dana 44 that is different then all other 44's.
 
#58 ·
chrysler300le said:
I need pics. I've seen plenty of people call the 9 1/4 a Dana 60.

Also Cherokee's used Dana 35's till about 96 then switched to Chrysler 8 1/4. Grand Cherokee's used Dana 44 that is different then all other 44's.
cherokees used d44 also it was a tow package or something , the 9.25 and d60 aren't close too look similar i have both in the driveway.

i have a lot to do with school and some work but ill try to get the pictures today.

if not from the orange ramcharger ,maybe i can find a ramcharger around the block.
 
#59 ·
My owners manual says the 5 lug semi floater dana 60 was an available option for the 1979 year model, But I have never ever even once seen one in a junk yard.
 
#60 ·
Can you scan that or post a pic of it?
 
#61 ·
Someone was selling a dana 60 w/5 lug axles on craigslist here in Phoenix last week or the week before for $400.  They said it was out of a ford 1/2 ton truck.  But, with the measurements that he posted from flange to flange, it came up that it would fit either B or E body (can't remember) and it didn't have any spring perches on it.
 
#62 ·
the 5 lug d60 is not a myth. first off, the hemi and 4spd 440 muscle cars had them 64 or so and up so they aren't even a new thing. the trucks sold in mexico could be ordered with them. had a customer from there looking for parts at my dealer in 2005. that truck was a 1995 1500.

as to the 9.25, it's ok for most applications. i have nuked mine twice, it's 3 months into a second rebuild. not sure if it was the crush sleeve, my error or the hard abuse i put it through that nearly destroyed it completely. a combo i suppose. i deflected the ring and pinion enough to strip teeth. grooved the LH side bearing saddle and my old lsd case self destructed too. my 79 has a stock 360, NV4500, d300 tcase and 33's. i believe housing flex is a big issue when you really push the 9.25. i will be going to 35s at some point soon, so we will see how long the pin takes to let go on this grenade soon enough. i did go to 4.56 gears in prep for the 35s.

i have a 8.75 that i will build when the 9.25 grenades again. they are plenty strong enough for a 360 and 35's. 37's or bigger in a 1/2 ton is pushing past the limit of the d44 front anyway so d60s are a must at that point. a 440 changes all that too obviously.
 
#63 ·
I know this is an old topic but my 86 w250 has a 9 1/4 eight lug rear end.  I didn't know if you guy's wanted me to take pictures so you could see differences from a 1/2 ton.  It looks like it has 12x2.5 drums like you would find on a dana 60.  I think the truck is a light 3/4 ton like maybe a 9/16th ton ha-ha.
 
#64 ·
pictures are always good.  :)
 
#65 ·
I'm a fan of the solid spacer instead of crush sleeve - like Ratech sells.

Not only is it more robust, but it lets you take the diff apart for inspection, and seal or yoke change; and you can reassemble without bearing pre-load issues. My buddies have put them in Ford 9" and 10.25". I have one coming for the 8.25" in the wife's Jeep.
 
#66 ·
I get some pictures or my 3/4 ton 9.25.  The only think I like about semi floaters are pulling the drum off haha. ;D  I went from a dana 70 on my last truck to a 9.25 so we will see.
 
#69 ·
You could if you wanted to run custom axles with press on bearings.  It's not really worth the expense since a junkyard D60 will cost a lot less.
 
#70 ·
Damn this is long winded ! I have worked on many 9 1/4 through the years . Most were as stated out of adjustment. Because of the crush sleeve giving up the chase . Shims to set preload and adjust carrier bearings as stated in the FSM , it will last many a mile . Nothing is built so strong we can not over Ass it and destroy it . It was designed to use 10.50/31/15 tires at most , and 15% off highway duty . I personally have never busted a 9 1/4 , but I have blown the caps off a 9 inch N case Furd . My age has a lot to do with parts breakage anymore . I busted an axle on a 2 1/2 ton Rockwell because of stupidity not , wear .  Just use caution , and remember there are better available axles out there . Normal highway driving and farm use for me no issues . But I swapped to Cummins , drove 9 1/4 HD , for a few years until I located a SnoCommander Dana 60 front and rear . Why education is expensive .
 
#72 ·
rccrawler said:
What if you wanted a 5 lug pattern? D60s don't have 5 lugs unless its for a car and good luck finding one.
There were some (rare) 5-lug D60's used in 60s/70s F150s.

There are also 8-lug semi-float D60's out there that could probably be redrilled for 5-lug. Or even beefier, the Ford 10.25"SF.
 
#73 ·
And the Mexican DM 5 lug D60 that was used in the 1/2 tons down there.

But let's be honest, every truck should have 8 lugs.  If it has less than 8 lugs, it's a car with a bed.  ;D