Ford 9" Axle dimensions

[Goyt79]

I am looking for the dimensions for a 78-79 Ford Bronco 9" axle housing. I need the housing width measurements form bearing ****** to bearing ******. (Not the axle ****** width). Also if the pinion is centered or offset to the passenger side And if it is how much. I am building a fab 9" for my truck at school and do not have it with me to get the dimensions.

 

[Broncobill78]

It's a center pinion. I've never seen an offset pinion rear axle, every offset I've seen has been a front axle and that's always due to the offset required by the transfer case. It wouldn't make any sense to offset the rear (now of course this doesn't even *begin* to address stuff like custom Currie Enterprises front 9" applications). The *bearing* ******-to-****** measurement is pretty odd, the standard width measurements are generally either spring pad-to-spring pad or outer-****** to outer-******. About the only thing most guys are asking about the bearings are if it's a large or small bearing axle (and you can tell that by ck'ing the backing plate). The ******-to-****** distance for 73'-79' F-trucks & Broncos is 59-3/4", just how that converts into the distance you're looking for I have no idea.

 

[80dad]

It's a center pinion. I've never seen an offset pinion rear axle, every offset I've seen has been a front axle and that's always due to the offset required by the transfer case. It wouldn't make any sense to offset the rear (now of course this doesn't even *begin* to address stuff like custom Currie Enterprises front 9" applications). The *bearing* ******-to-****** measurement is pretty odd, the standard width measurements are generally either spring pad-to-spring pad or outer-****** to outer-******. About the only thing most guys are asking about the bearings are if it's a large or small bearing axle (and you can tell that by ck'ing the backing plate). The ******-to-****** distance for 73'-79' F-trucks & Broncos is 59-3/4", just how that converts into the distance you're looking for I have no idea.

this may be a silly ? but when you say ck the backing plate for large or small bearings. what are you looking for is there a size stamped on them ?also is ther ea way to tell axle spline without puilling a axle and counting?

thanks

scott

 

[Broncobill78]

this may be a silly ? but when you say ck the backing plate for large or small bearings. what are you looking for is there a size stamped on them ?also is ther ea way to tell axle spline without puilling a axle and counting?thanks

scott

Scott,

No worries, nothing silly at all about a reasonable question. What I meant was that when placed side-by-side a 9" axle with large bearings is noticably different from a small-bearing axle because of the size of the bolts used on the backing plate and the spacing of those bolts. Attached photos explain it more easily than words can.

Dave

 

[80dad]

Scott,

No worries, nothing silly at all about a reasonable question. What I meant was that when placed side-by-side a 9" axle with large bearings is noticably different from a small-bearing axle because of the size of the bolts used on the backing plate and the spacing of those bolts. Attached photos explain it more easily than words can.

Dave

/quote]

THANKS DAVE

scott

 

[Broncobill78]

Hey, no problem. Glad to provide the info. Please remember than no question is stupid. I remember some of the stuff *I* used to ask and the patience people used to have when answering me. Anytime you have a question pls post it & I'll see it or someone else will, or if you prefer shoot me a PM. If I don't have the answer I'll ask the mods & we'll look it up. *Someone* here will always get you an answer, it's the whole POINT of the forum. Granted we like to goof around & have fun w/each other but the whole point of this is to help each other out & to answer questions. Everyone here is a curious guy who likes his truck, so we all *start* from a common point.