What is a high pinion diff?

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Jul 29, 2007 | 02:00 PM

#16

Skandocious

Thread Starter

Postmaster

Joined: Oct 2006

Posts: 4,816

Likes: 1

From: Davis & Newcastle, CA

Hmm... That video might be a valuable investment... I'll check all that out. Is this the carrier that I would want to buy for an open diff with 4.10s:

http://broncograveyard.com/bronco/i-32023_d44_carrier__complete_3_92_down_open.htm

As for the e-fan, I found a really good writeup on which parts to buy and how to do it correctly:

http://www.fordmuscle.com/archives/2003/02/electricfan/index.php

Lets get you a 3g alternator and get this party started!!

Jul 29, 2007 | 02:02 PM

#17

Mr. M

Elder User

Joined: Oct 2006

Posts: 843

Likes: 1

From: Redmond, WA

Quote:

Originally Posted by Skandocious

Once again, Mike, you have impressed me with your expertise and willingness to help.

Many thanks! Just trying to help. I certainly appreciate it when folks leave detailed answers to my questions. So I try to scratch the FTE members back in return. I remember how daunting that job was when I started...

Quote:

Originally Posted by Skandocious

The problem is, I am not at all familiar with the insides of the differential or how anything works (or what its called for that matter). So most of what you just posted means next to nothing to me... I wish it made sense because I want to do this swap SO BAD!! Thats why I was asking Andy, hes the only guy local to me that has a good knowledge of these trucks.

Do some google searches on an 8.8 ring and pinion swap. You should find many. I bookmarked one when I did it. Great photos and step by step help. I wish I still had it but I reformatted a while back.

Differential is pretty simple once you take it apart.

Quote:

Originally Posted by Skandocious

Just out of curiosity, did you buy the gears for the front end and take them to the shop with your diff? Or did you buy the gears from the shop? Either way, how much did they charge you for that

I bought a value gear brand and carrier for the D44 from JT's rearends(ringandpinion.biz). I bought Yukon 4.10's for the rear. They had a much better fit on the pinion than the cheap sets. Also, I do recall that they came with some decent instructions and spec sheets as well.

I took the truck to a ring and pinion shop with my parts (that shop marked up the prices of parts a bit higher than JT's) and they charged 4 hrs of labor at $65/hr. They also checked my rebuild on the 8.8 and surprisingly...I didn't bugger it up at all.

Call up JT's and ask for Jeremy. Tell him Mike with the green lifted F150 from the Fish and Wildlife service sent you! He's a great guy and very knowledgeable about these swaps. Pick his brain regarding any issues you might have.

Good luck!

Mike