aahhh. I see said the blind man to the deaf dog, in a dark closet. Tgankst

 

you sure the light wasn't on?

 

Better than an open diff

 

I have the same axle code and am 99% sure its open rear diff...

Why it was a good idea to put an open rear diff in a 3/4ton truck I will never know...but it happens. Unfortunately for me when i bought the truck I didn't realize it was even an option. Live and learn I guess, I am in the process of hopefully getting a Detriot Trutrac put in mine, when I noticed about an hour ago they were for the the full float axle only, now I am hoping someone can tell me if I have the full float or semi float just by checking out my door tag...




Still love my truck, all the way..but I really hope its a full float axle or I gotta come up with another solution.....

 

Which is what makes the true trac an attractive option....

 

Plus the cost of having someone install it...ouch..I wanna say I can do it...but you guys have seen my dummy posts...so .....(that and I am still working 70+hrs a week at the job, not including round the 'farm' so time is not on my side)

 

Sorry to have hijacked your thread..but this whole will it work in a semi float or does it have to be a full float question is annoying me...that and at 4:44 am I am not going out to the truck to see which I have..so I contacted Eaton support...perhaps they can answer if it works in either axle....

Just noticed the whole full float only thing while looking at prices and a few of the sites said full float axle only for the true trac....that is what took me down this path...that and perhaps lack of sleep...

 

Toby you have a full floater. Luckily ford in this era didn't do that half baked 3/4 ton axle like my dodge has.
Also if not changing ratios and there isn't anything wrong you can prob skip the bearing kit. You would only need the carrier side bearings. Check before buying as some aftermarket carriers take specific special bearings. I have not researched to know if the Detroit does or not.

 

I'm not sure what you mean by full float, or semi- float?

I went to a salvage yard yesterday. I needed the turbo intake boot, and Ford wanted $100. WHATTTT!

Anyways, I'm at the salvage yard and looked at three 250 and 350 trucks, all axle 39, and a fourth axle 35. I'm betting a C9 will be danged near impossible to find.

 

Rear axle bearing arrangement. Full float is what we have. The shaft does not bear any weight. Only tortuously load.

 

So, there is a hub of sorts at the wheel, and the axle shaft just slides into it?

 

Well that sounds pretty good. I read the following on a site and assumed I was stuck because I have the regular cab 2wd and hence its a lot lighter than other PSDs




Read your post Aaron and saw this on Wiki




So I generally take your advice and knowledge and run with it Aaron, but before I drop $500 + bucks is there an easy way I can visually double check that I don't have some rare hardly seen in a F250 semifloat...??

I hope this is one of those Aaron in generally right cases.

Thanks in advance

 

nope. Mine is basically open. It is one tire Fire on ice. So worn out it does nothing

 

My white truck, which is the winter beater, has the open diff. Its nice cause if you get on it too hard you only break one tire loose and continue going in the direction that you want. That is the only benefit I know of.


If anyone out there isn't happy with how the LS is functioning I'd suggest changing the fluid and be sure to add the correct amount of the friction modifier.

 

I've tried that phil. I'm guessing at almost a half million kms it's done.