[Blue Streak]

Is there any significant difference in the two sizes. Dodge lists the 9.25 as "heavy-duty". And from what I've read there was no ryme or reason to which truck got which (r/t exception, always 9.25 i think).

I have an 8.25 with 3.55 and a factory lsd. I want to go to 4.10 gears and a locker or stronger anti-slip, but was wondering if the 8.25 is worth it, or if I should get a 9.25 first. I hope to eventually s/c the truck and am looking at 400whp for a looooooooong term goal. can an 8.25 take that?

 

[rt99three60]

you could build an 8 1/4 to handle that much power but IMO its gonna cost you so much to make a V6 push 400hp to the wheels hell guys with r/ts that have that much hp prolly have 10k plus in the drivetrain

 

[Blue Streak]

ok i'll admit that was a little dreaming (400whp) maybe I'll shoot for 300. just enough to out run stock r/t's

point being: you think an 8.25 can handle that?

 

[dakman]

Give Randy's ring and pinion a call, tell them your plans and let them tell you what they think it can handle.

 

[Neil]

Here is some info on the axle http://www.dodgetalk.com/forums/showthread.php?t=68272&highlight=axle+strength

 

[rt99three60]

yeah and i gave u an answer i said you could make an 8/14 handle that much if u want

 

[HemiDak]

Your rearend will be fine. Compared to you I've got big tires, low gears, and a locker. 33's, 4.56's, and a Detroit. I haven't had an issue yet with mine after offroad abuse. I have no need to swap out this axle.

 

[jmaack727]

Your rearend will be fine. Compared to you I've got big tires, low gears, and a locker. 33's, 4.56's, and a Detroit. I haven't had an issue yet with mine after offroad abuse. I have no need to swap out this axle.

youve got an 8.25 axle?

 

[HemiDak]

Yup. Came on the truck since it was originally full-time 4wd (aka AWD). I've got about $1400 into the rear axle alone so it's not like I'd want to swap it out either. I have to admit though, it does look quite sexy...

 

[lilguido1]

I have to admit though, it does look quite sexy...

You are a sexy bitch...

 

[jmaack727]

Yup. Came on the truck since it was originally full-time 4wd (aka AWD). I've got about $1400 into the rear axle alone so it's not like I'd want to swap it out either. I have to admit though, it does look quite sexy...

lol i like the cover on it, i forgot AWDs have them or some do or whatever, you said yours was originally awd, is it not anymoreim guessing you converted it

 

[Casey Dakota]

I have a 1999 Dakota 4x4 and I need to replace the rear diff but was told to read the numbers off the carrier and that it was out of a Toyota.I need a new diff but don’t know what to do!!