[DeTomaso] 2nd gear downshift grind

[Julian Kift]

IMHO the additional $$ for the 6 speed are not warranted as for the most part it simply closes up the ratios between shifts, 6th is still at maximum a 0.62 gear, which can be equally acheived with a tall 5th, plus all the various crown wheel & pinions are available in both versions. The 6 speed is an inch longer than the 5 speed so all new mountings are required.

 

I also think you will struggle to get $5K for a ZF that needs a rebuild in the curent market, in fact you can pick up good or rebuilt ZF's for $5-6K at present. Maybe that's the way to go and just put your current ZF away as a spare or until things pick up again. Maybe they'll never pick up to the same degree as before with people waiting a year for a ZF rebuild as I believe the Quaife ZFQ has leveled the field a bit now and lowered potential ZF demand from the GT40 replica crowd. The ZFQ is a dimensionally correct ZF that sells for GBP6500 (based on current exchange rate ~$11K) in GT40 orientation, so in many cases it doesn't pay to buy a Pantera ZF and spend another $3K having it converted for GT40 use.

 

Julian
 


Date: Mon, 14 Sep 2009 11:45:37 -0400
Subject: Re: [DeTomaso] 2nd gear downshift grind
From: boyd411 at gmail.com
To: julian_kift at hotmail.com
CC: dfcex at excaliburre.com; detomaso at realbig.com

Buy a six speed for $16 K and sell yours for $5K as is and you have a NEW 6 speed for $11k (sounds good on paper)


On Mon, Sep 14, 2009 at 11:24 AM, Julian Kift <julian_kift at hotmail.com> wrote:


Dan,



I think labor for pulling a ZF apart for inspection these days starts around $2500, the syncros run around the $350 mark each if I remember correctly and if you have the taller 5th installed at the same time it'll probably add $1500 to the overall cost. Either way I'd guess you are looking at sinking $5K plus into it.



Lloyd (RBT) is the go to guy to have all the parts and do it right.



Larry Stock sends his ZF work out to Intrepid Racing here in Reno and they are costly Dennis Quella apparently uses replacement brass syncros, which some argue against.



Julian

> From: dfcex at pacbell.net
> To: detomaso at realbig.com
> Date: Sun, 13 Sep 2009 23:01:02 -0700

> Subject: [DeTomaso] 2nd gear downshift grind
>



> It's sounding like The Beast needs 2nd gear synchros as it's grinding allot on downshifts into 2nd (at least until it's pretty warmed up);
> If I have to pull the ZF already I might as well look into a taller 5th gear.
> Anybody know what a ZF overhaul is going for these days, and the options (vendors) for a taller 5th gear?)
>
> Dan Courtney
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