Re: [AMC-list] AMC twin grip posi question interchange

["Armand Eshleman" <aje1@xxxxxxxxxxxxxxx>]

replies to Mark's post follow his questions


> I've got a twingrip 65 rear amc 20. I believe it is 3:15 ratio. I have not 
> torn it down. What I hear is,


1. the early carriers are better? T or False?

ans. I don't think so, same quality high nickel cast components, the early 
version is two piece, later version is a single piece. As long as the 
bellevue washer surfaces are in good shape either should be OK. The two 
piece unit is way easier to rebuild......



2. something happened with bolt sizes? T or False.

ans. don't know, which bolts are you referring to



3. the early carriers are worth more? T or False?

ans. True the one piece carriers seem more valuable as are the higher ratio 
carriers, example the 3.54 twin grip carrier is in greater demand than the 
2.72



Part B: How much if 3 is true?

ans. Don't remember what I had to pay for the 3.54 carrier but it was more 
than for the 2.72


Armand




----- Original Message -----
> > From: "Armand Eshleman" <aje1@xxxxxxxxxxxxxxx>
> > To: "Rambler AMC, Nash,Jeep and family" <amc-list@xxxxxxxxxxxxxxxxx>,
> > amc-list@xxxxxxxxxxxx
> > Cc: "Darren Massaro" <dsm6678@xxxxxxxxxxx>
> > Sent: Friday, April 27, 2012 6:41:27 PM
> > Subject: Re: [AMC-list] AMC twin grip posi question interchange
> > Darren,
> > You're line of thinking makes a lot of sense regarding the same
> > carrier for
> > twin grip or open diff. However the engineers at AMC didn't see it
> > your way.
> > Unfortunately there is a carrier for twin grip and a carrier for the
> > conventioal open style differential.
> > I am still working on installing a twin grip differential carrier into
> > the
> > white Javelin's AMC 20 rear axle.
> > I removed a 3.15 open carrier and I'm installing a 2.72 twip grip or
> > as the
> > Jeep guys call it, trak lok, I believe.
> > There is without a doubt two separate carriers for each style
> > differential.
> > Also there is a carrier for twin grip ratios that are different from
> > other
> > twin grip ratios. If you desire the 2.87 gears to remain in your rear
> > axle,
> > you will need to find a twin grip carrier that will accomodate the
> > 2.87
> > gears.
> > Now this one I'm not sure of exactly. There is a cut off point as to
> > which
> > gears fit which carrier. I believe 2.72 and 2.56 take the same
> > carrier, as
> > does I believe 2.87 and 3.15 ratios, not exactly sure on that, and the
> > 3.73's and up take another carrier. Please some one correct me if I'm
> > wrong...
> > Good luck with it Darrern,
> > Armand
> > > Darren below wants to make a twin grip and has some tech questions,
> > > anyone
> > > wishing to reply please feel free to do so, copy your reply to him
> > > and
> > > thanks in advance to all who might reply.
> > > Eddie Stakes
> > > 713.464.8825
> > > eddiestakes@xxxxxxxxxxxxxxxxxxxx
> > > www.planethoustonamx.com
> > >
> > > ----- Original Message -----
> > > From: Darren Massaro dsm6678@xxxxxxxxxxx
> > >
> > >
> > >
> > > Hello Eddie!
> > >
> > > I want to make my 287:1 conventional rear to a twin grip limited
> > > slip rear
> > > I have been studying the service manual and the only difference I
> > > can see
> > > between the conventional rear and twin grip rear is that the twin
> > > grip
> > > rear has clutch disks,plates, and a belleville washer.
> > >
> > > I see that the differential gear needs splines in it for the clutch
> > > parts
> > > to slide onto. Does the conventional differential gear have those
> > > splines
> > > in it? What I mean is that is the differential gear made the same
> > > for
> > > both twin grip and conventional? I would think it would be cheaper
> > > to make
> > > them both the same and amc just added a clutch if someone optioned
> > > the
> > > twin grip rear.
> > >
> > > Thanks for your time
> > >
> > >
> > > Darren M
> > >
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