8.8 Master Housing Dimension?

R.J.

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Aug 20, 2003

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Warwick, Rhode Island

May 25, 2010

#1

• May 25, 2010

• #1

Does any body know what the Master Housing Dimension is for an 8.8 in Rear end? My Proform Pinion Depth Tool came with a list of MHD’s and it said 4.420. I have read two other online sources that say the MHD for an 8.8 is 4.419 or 4.415?? This .001-.005 would matter when shimming a pinion. Does anybody know what the Ford manual says?

 

R.J.

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Aug 20, 2003

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Warwick, Rhode Island

May 26, 2010

#2

• May 26, 2010

• #2

Well I e-mailed Currie, Richmond and Mark Williams Enterprises (Three Huge Rear End/Gear Companies) and they all said that the MHD for the Ford 8.8 is 4.415. So now I have to call Pro Form and ask them why they put 4.420 on their directions.

 

R.J.

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Aug 20, 2003

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Warwick, Rhode Island

Jun 9, 2010

#3

• Jun 9, 2010

• #3

Does anybody know anything about this topic??

 

usaf_branham

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Oct 30, 2008

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Boston

Jun 9, 2010

#4

• Jun 9, 2010

• #4

4.420 is all i have ever heard, and if your off .005 on the pinion depth, it most likely isnt going to cause an issue. Its not always the case, and you should be checking this, but usually FRPP gears can be swapped using the stock pinion shim, and its close enough to not cause an issue. That isnt true of the carrier shim, but how hard is it to check backlash...

 

Ponyup1

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May 27, 2010

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Adams,MA

Jun 9, 2010

#5

• Jun 9, 2010

• #5

usaf_branham said:

4.420 is all i have ever heard, and if your off .005 on the pinion depth, it most likely isnt going to cause an issue. Its not always the case, and you should be checking this, but usually FRPP gears can be swapped using the stock pinion shim, and its close enough to not cause an issue. That isnt true of the carrier shim, but how hard is it to check backlash...

Click to expand...

That's why I always recommend only using the FRPP ring and pinion.

 

R.J.

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Aug 20, 2003

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Warwick, Rhode Island

Jun 10, 2010

#6

• Jun 10, 2010

• #6

Your both correct, I would just like to know the correct numbers. I currently have ProForm researching it and I have an e-mail out to Dana.