So yesterday I picked up the the rear end for my truck. It came out of an 06 Ranger, same as mine but 4WD. Today I got started installing it. The first thing I noticed was the axle tube was a bigger diameter. So I start measuring and everything looks good except my U bolts won't fit. I figure I can swap out the axle for now so I can get it safetied, then change everything over later.The next thing I noticed was the diff is different.
This is my old one... 410 8.8 LS
and this is the new one... 410 8.8 LS
I pulled the axle and it won't fit in my rear end so I put it back in. The new one looks (didn't measure it) thicker and has 31 splines instead of the 28 that the old one has.
So, what's the deal with this diff?
Is it just a heavier construction?
The gearing is the same so it shouldn't be any problem but I would like some info on this. I know nothing about differentials other then how they work.
Is it a posi?
Please tell me about this new diff.
I put it back together and swapped out all the parts that needed to be swapped out, then installed the rear end. Right now it's in the truck on axle stands and just needs the U bolts to complete the job.
Is there anything I might not be aware of that I should do or watch out for with this new rear end?
Is it just a straight swap other then the U bolts?
So far the only difference I can see is the new rear end has holes in the casting for a sway bar that my truck doesn't have. I don't think that will be a problem.
If it helps, the original tag # is V333V and there is a sticker on the tube that says "New model", The replacement tag # is V315A
In the future, depending on gas milage, I may want to swap out the gears for a lower ratio. I'll be asking some questions about that when the time comes.
Thanx for any help you can offer.