Diff bolt sizes

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simonjrwinter
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Diff bolt sizes

Post by simonjrwinter »

8E68CFAA-4C37-4F57-BC1F-9DB5B2F6A1EA.png
Does anyone know the thread size of the diff bolts (no 11 in pic)?
I want to buy a tap to run down the threads.
Thanks
Simon
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kdavies3
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Re: Diff bolt sizes

Post by kdavies3 »

I reckon Ben at Simply Performance will tell you off the top of his head.
He's doing the rear end for the Hawk right now.
Kev Davies
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simonjrwinter
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Re: Diff bolt sizes

Post by simonjrwinter »

They are 1/2 UNC if anyone needs to know.

Simon
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peterc
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Re: Diff bolt sizes

Post by peterc »

Kev, out of interest would he be looking at making the Jag rear have a diet and lose some excess weight. Ali diff housing or changing any other parts.
e.g Hawks support Steel is rather strong and heavy.
Having a Rover engine in my Hawk means it’s the rear that’s the heavier half.
Peter C
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kdavies3
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Re: Diff bolt sizes

Post by kdavies3 »

Hi Peter,
do you mean an ally diff case or the frame (diff support) the diff mounts to?
I will have a standard Jaguar iron cast diff housing.
I haven't got the IRS mounting kit (diff support) yet, need one though.
I've gone with outboard rear discs BTW.
Kev Davies
DAX Mk4, 383 Chevy Stroker, Tremec. SOLD
Contemporary CCX 3-4028, 445ci Big Block FORD FE,TKO 600. SOLD
Dax De Dion LS2 and T56. SOLD
1965 Ford Mustang 289 Convertible SOLD
In build Hawk 289 (302) Sebring. Awaiting IVA:D
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peterc
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Re: Diff bolt sizes

Post by peterc »

Hi Kev,
Actually I was referring to both diff casing and the support steels.
Not sure whether a standard Ali Jag diff casing exists otherwise it the need to go down the Cosworth route.
I appreciate that any of the steel support angle would need to be a fair bit thinker section to take the strain but I’m sure there must be some mileage in looking at a diet for the overall assembly.
Nice to hear that you are going the more authentic route with outboard discs. I don’t know how that affects the overall weight or changes the road holding with the change in un sprung weight.
I know several members have now converted.
Peter C
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