[DeTomaso] ZF differential housing bolts

[coreyjprice at gmail.com]

Jack,

I used some vise grips this morning after remembering the last time and I removed all of them without issue. Your method is spot on.  I replaced all of the bolts last time with regular socket bolts and will again this time.  I have no idea why ZF used such crappy bolts. 

Corey

> On Jun 11, 2015, at 3:24 PM, Jack DeRyke via DeTomaso <detomaso at poca.com> wrote:
> 
>   Cory, I used a supplemental torque-applier when I tore down a couple of
>   ZF diffs. First I used a brand new 'Unbrako' metric allen driver in a
>   socket wrench, and also clamped a Vise-Grip pliers to the outside of
>   exposed allen head. Carefully using both tools, the OEM allens gave up
>   easily on a '72-1/2 and a late '73. You'll be replacing those bolts
>   anyway- who cares if the heads get scarred up! THere may be a few
>   allens holding the diff case to the tranny case that need this
>   treatment, too. Full-height-head metric allens are readily available.
>   Good luck- J Deryke, who always goes for the simplest solutions
> 
>   -----Original Message-----
>   From: Bill Lewis <lotus0005 at hotmail.com>
>   To: PANTERA-Larry <larry at ohiotimecorp.com>; PANTERA-JohnTaphorn
>   <jtaphorn at kingwoodcable.com>; 'De Tomaso List' <detomaso at poca.com>
>   Sent: Thu, Jun 11, 2015 10:06 am
>   Subject: Re: [DeTomaso] ZF differential housing bolts
> Larry, I give that a 10  ----BILL LewisBILL Lewis
>> From:
> [1]Larry at ohiotimecorp.com
>> To: [2]jtaphorn at kingwoodcable.com;
> [3]coreyjprice at gmail.com;
>   [4]detomaso at poca.com
>> Date: Thu, 11 Jun 2015
> 11:30:17 -0400
>> Subject: Re: [DeTomaso] ZF differential housing bolts
> 
>> 
>> << Drill off the head>>
>> 
>> It's been a lifelong ambition of
> mine.
>> 
>> 
>> Larry (still trying) - Cleveland
> -----Original Message-----
>> From: DeTomaso
> [[5]mailto:detomaso-bounces at poca.com] On Behalf Of John
>   Taphorn
>> Sent:
> Thursday, June 11, 2015 8:00 AM
>> To: [6]coreyjprice at gmail.com; De Tomaso
> List
>> Subject: Re: [DeTomaso] ZF differential housing bolts
>> 
>> Yes
> Corey, many times
>> 
>> Drill off the head.
>> 
>> JT
>> 
>> On
> 6/10/2015 10:25 PM, [7]coreyjprice at gmail.com wrote:
>>> I have torn down a ZF
> before but the one I'm currently working on
>   is being
>> stubborn. In
> order to remove the differential, you must follow one of
>   two
> methods:
>>> 
>>> 1. Using a special tool, remove the carrier bearings on
> the sides
>   of the
>> differential. With the carrier bearings removed, the
> differential
>   comes out
>> cleanly.
>>> 2. Remove eight bolts on the
> differential thru the side cover
>   opening,
>> remove the diff side cover
> and then remove the rest of the
>   differential.
>>> 
>>> Since I don't
> have the special tool, I have to use method 2. I've
>   done it
>> before
> with good success. Unfortunately the OEM bolts are short
>   crappy
> strip-easy socket bolts. I'm not doing well on all but one bolt on
>   this
> ZF.
>> Anyone done this before that can offer suggestions?
> Corey
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> References
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>   1. mailto:Larry at ohiotimecorp.com
>   2. mailto:jtaphorn at kingwoodcable.com
>   3. mailto:coreyjprice at gmail.com
>   4. mailto:detomaso at poca.com
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>   7. mailto:coreyjprice at gmail.com
>   8. mailto:DeTomaso at poca.com
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