3.73 to 4.56 plans / questions

[yostyexplorer94]

I am going to be switching to 4.56 gears soon. I have 3.73's limited slip in my explorer as of now. I have a parts explorer with 3.27 open gears in the front and rear. I already have the 8.8 and the Dana 35 out of that parts explorer. Since I have them out sitting in my garage I was just gonna get those geared up to 4.56 so I can essentially swap them in with very little downtime for my explorer.

My thoughts on this is it is an open differential so lockers are a little cheaper.
I am probably going to leave the front end open (maybe install a locker later on down the road)

For the rear I am thinking of doing it right, replacing the carrier with a Detroit locker and getting the gears set up on that.... Any thoughts, opinions, or advise? Am I on the right track?

 

[HahnsB2]

I like your plan, I plan on swapping in a Detroit in my B2 sometime later and throwing the Aussie in my X. The Aussie is nice but strength of the stock carrier has me worried.

 

[redrocket1468]

when you put the 4.56 gear in the rear you might have to grind down a tooth on the ring gear to get the carrier pin in. just thought i would add that in for ya

 

[HahnsB2]

Yep that's what I did on mine, did the same on my 4.10 7.5.

 

[LBarr2002]

Using the 3.27 gear axle is a good idea. That way you'll also end up with an extra 3.73 axle set, that someone else might want for their stock setup. Putting an Aussie in the front makes a huge difference, so don't hold off on it too long!

 

[Four0Sport]

a 3.73 would be a big improvement over my 3.27, hint hint haha

 

[yostyexplorer94]

Thanks for all the positive input! Makes me feel better about buying all these parts!

Four0Sport a 3.73 would be a big improvement over my 3.27, hint hint haha

Yeah I have seen in some of your posts where you are trying to get different gears. It made me laugh! I am the kind of person that doesn't like to get rid of anything.... I always feel as if I may need it down the road. Plus it seems like a rule of thumb to say if you get the 3.73's you'll want at least 4.10's or 4.56's when you upgrade to 33's lol.

Thanks again for the help!

 

[Four0Sport]

yeah i finally settled on looking for 4.10s when i get the extra money

 

[yostyexplorer94]

yeah i finally settled on looking for 4.10s when i get the extra money

Are you going to get your rear end re geared to 4.10's or are you gonna try and find a used disk brakes axle w/ 4.10's and swap it in?

I just ordered the 4.56 jegs brand ring & pinion for the rear. It was a little under $300 shipped. It came with the installation kit and the gear oil. Now I gotta get myself to fork it over for that Detroit!

 

[Four0Sport]

my funds are.. well.. limited. so yeah, just looking for a 2nd gen rear disc 8.8 with 4.10s, the hard part is going to be finding a TTB D35 with 4.10s. not very common around here.

ive already talked to some friends at a local yard and priced a complete rear end with brake hardware and a front TTB pig for ~$300 so yeah im goin that route lol

 

[cyclegrip]

Are you going to get your rear end re geared to 4.10's or are you gonna try and find a used disk brakes axle w/ 4.10's and swap it in?

I just ordered the 4.56 jegs brand ring & pinion for the rear. It was a little under $300 shipped. It came with the installation kit and the gear oil. Now I gotta get myself to fork it over for that Detroit!

I just found a set of 4.56 gears on CL for dana44/ford 8.8. 2 sets of 4.56 gears and master kits for $250. That is such a steal if I had my old truck, or if I had use for them right now

 

[yostyexplorer94]

I just found a set of 4.56 gears on CL for dana44/ford 8.8. 2 sets of 4.56 gears and master kits for $250. That is such a steal if I had my old truck, or if I had use for them right now

Wow that was a steal. I have yet to see any deals like that in my local classifieds.

 

[Four0Sport]

same here.. and ive been lookin for months

 

[cyclegrip]

Wow that was a steal. I have yet to see any deals like that in my local classifieds.

I think its still up but the add says pickup and cash only. I wish I had the funds and a truck right now to do it, I want to go for it so bad, but I just can't.

 

[yostyexplorer94]

I have the craigslist set on harrisburg pa. Where is it located at?

 

[yostyexplorer94]

I got my jegs 8.8 gears and install kit today. My detroit will be here on tuesday! I am like a kid on christmas day opening up presents when the fed ex and ups guys drop off packages LOL

 

[Four0Sport]

I just found a set of 4.56 gears on CL for dana44/ford 8.8. 2 sets of 4.56 gears and master kits for $250. That is such a steal if I had my old truck, or if I had use for them right now

..yeah, what area are you searching on craigslist? im only 30 mins from south western pa