Rearend Compatibility
#1
Rearend Compatibility
I have a '97 f150 with an 8.8 rear. Im looking for something that i can put in there to replace my destroyed rear. Like what different years are compatible, maybe i could find a rear out of a newer vehicle. would be really cool if i could put a rear in there with disc brakes or some thing.
#2
I may be wrong but I think you could put a 9.75 rear in there out of any 97-03 with a 5.4. And mine has disk brakes. You will probably have to change some brake lines and fittings in order to get the brakes to fit, but unless I'm mistaken, the rearend should be a direct swap. Good luck.--DIY
#4
It's a '99 XLT, SCAB with the 5.4L and factory towing package. I'm pretty sure the disk brakes were equipment standard on a truck like mine so you shouldn't have too much trouble finding a rear end with what you're looking for.
If your truck is a 4x4 just make sure you get a rear end with the same axle ratio or you'll be buying a set of gears too.--DIY
If your truck is a 4x4 just make sure you get a rear end with the same axle ratio or you'll be buying a set of gears too.--DIY
#6
Not sure if the disk brakes were available on the 8.8. Honestly, I would think seriously about upgrading to the 9.75 anyway. It's a much stronger unit and you might as well get a complete unit from a junkyard while you're at it. Rather than messing with converting your existing axle to disk brakes, why not just but a 9.75 with the disk brakes on it already and then swap it in? Seems to me like it would be easier to do.--DIY
#7
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#9
As for aftermarket parts, yes they have about the same selection of parts.
As for the width, I'm almost sure they are the same width. The V6 trucks and the 4.6 V8s got the 8.8 and the 5.4's got the biogger 9.75 rears. So it would serve to reason that they are the same width. You'd want to check for sure since I've never actually attempted this swap. Not sure of the specifics, but if you attempt it you might want to do a write-up on it for future users to reference.--DIY
As for the width, I'm almost sure they are the same width. The V6 trucks and the 4.6 V8s got the 8.8 and the 5.4's got the biogger 9.75 rears. So it would serve to reason that they are the same width. You'd want to check for sure since I've never actually attempted this swap. Not sure of the specifics, but if you attempt it you might want to do a write-up on it for future users to reference.--DIY
#10
Here are a couple of threads for you to look at.
https://www.f150online.com/forums/sh...ad.php?t=10211
At least this one answers the width question--
https://www.f150online.com/forums/ar.../t-186407.html
I've been searching for 30minutes now and I still haven't found one that was actually done.--DIY
https://www.f150online.com/forums/sh...ad.php?t=10211
At least this one answers the width question--
https://www.f150online.com/forums/ar.../t-186407.html
I've been searching for 30minutes now and I still haven't found one that was actually done.--DIY
#13
#14
For the record, my 02 8.8 has disc brakes. Any 8.8 or 9.75 should be a direct swap. I've considered doing this switch many times, but have never been motivated enough to actually do it. The 9.75 is a much stronger unit and in my opinion should be standard on ALL F-150s. You need to be ABSOLUTELY sure that the gear ratio is the same. If they're different you will likely be buying more than a new set of gears. More like a new transfer case. Good luck.
#15