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Old 03-04-2012, 07:29 PM
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How to: 4L60E to Ford 8.8 rear end

Hello All,

I'm trying to build a '37 Chevrolet. I have an all stock 5.3 with a stock 4L60E. I also have a Ford 8.8 Explorer rear end.

I don't know a lot about this kind of fabrication so I was wondering how to connect these two pieces. The Ford 8.8 has the round piece on the end of the pinion that has the bolt holes in it.

Thanks,
Brandon

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Old 03-04-2012, 08:27 PM
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did you get a driveline or yoke for either the trans or rear end
most driveline shops can build whatever you need
here is some info
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Old 03-04-2012, 09:09 PM
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I do have a yoke that I got for the transmission. The only part I have for the rear end is the round piece that the u-joint bolts onto on the 8.8 rear end.

I'll check out the link.

Thanks,
Brandon
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Old 03-04-2012, 09:46 PM
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I am thinking, since you do have the trans yoke

if you measure a drive-line from an explorer, and its longer than what you need
you could have it shortened and the trans end yoke changed so it will work for you

I think that would be cheaper than having a whole new drive-line made from scratch
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Old 03-05-2012, 07:46 AM
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You must not of gotten the pinion flange adapter with the 8.8" rear end which looks something like this:




I believe the adapter from the explorers fits a 1310 U-joint. The picture above is from my V8 Beetle Project. My drive shaft is for 1350 U-joints so I could have used the stock explorer adapter and a 1310-1350 conversion U-joint. But I didn't have the explorer adapter, and I already had a new 1350 U-joint so I did a little surfing on the net. The Jeep guys use these rear ends quite a bit and they like the beefier 1350 U-joints so on some 4x4 and jeeps sites you can find a 8.8 adapter flange for a 1350 U-joint.

That option worked great for me since I would have to buy a adapter flange either way, and I already had the 1350 U-joint.

Here is where I bought my adapter flange from, they also have them for 1310 and 1330 U-joints. dennysdriveshaft.com If a 1310 works for you, and you want to try to save a little money you could probably go to a junk yard and get one pretty cheap.


Alright if you do the above and you already have the trans. yoke then you just need a driveshaft to go in between, and matching U-joints. You can have a driveshaft cut down, or get a new one made, or maybe you'd get lucky like me, but in my case I had room to move my engine, etc....

You could take a measurement between the yoke and pinion adapter and maybe find something that matches..

In my case for my V8 Beetle Project I'm using a modified S-10 chassis, the 8.8" rear end, and a 200R4 (2004R) transmission. Now the s-10 driveshaft I had was WAY to long because I shorted the wheel base by installing shorter leaf springs.

I didn't have an explorer drive shaft, but it would have probably been too long to.

I pulled my engine from a 1977 2wd 3/4 ton C20 donor, and I hung onto the 2 piece drive shaft. It turns out that the back section of the 2 piece driveshaft was perfect for my application, no cutting, no welding, and no conversion U-joints because one end of that drive shaft had a 1310 U-joint, which fit my trans yoke, and a 1350 U-joint, which fit the adapter flange I bought.




And this is what my driveshaft looks like installed:



Also don't forget about pinion angle......


For more pictures and info about what I did on my project check out the engine/trans and chassis section on my V8 Beetle website: v8beetleresource.com
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Old 03-05-2012, 11:26 PM
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There are a few million different u-joints out there, but there used to be a standard. Learn these numbers, 1310, 1330, and 1350. They are a style of Ujoint that was used for 40 years on vehicles from the 50s to the 90s.

Your 8.8 probably uses 1310 Ujoints. You can buy output yokes for the 4L60E in many sizes, including 1310. The 8.8 can surely be fitted with a more common pinion yoke that uses more common, saddle-type joints - if you would like to do that... or you could just order the pinion-end of the driveshaft so it bolts up.

As far as connecting the two... that's the easy part. Its no different than making an extension cord with two different ends. The driveline shop will take a yoke that corresponds to the 4L60E, a yoke that corresponds to the 8.8, and weld them on to the ends of some steel tubing. The secret is getting the right length.

... but that's a different post. Its way too late.
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