fbekholden.com

Errol62 wrote: Sun Aug 10, 2025 10:18 pm Solid choice of rear axle there. What ratio? Are they originally 4.5” &*#@ pattern?


FB ute fixer upper, EK van on rotisserie

The ‘lux diffs are 6x139.7mm pcd.

Cheers,
Harv

Harv wrote: Sun Aug 10, 2025 10:41 pm

The ‘lux diffs are 6x139.7mm pcd.

Cheers,
Harv

that's for a fourby Harv, the 2WD diffs are 5x4.5"

Blacky wrote: Sun Aug 10, 2025 11:26 pm that's for a fourby Harv, the 2WD diffs are 5x4.5"

Like the bloke with the artificial leg, I stand corrected

Cheers,
Harv

Harv wrote: Mon Aug 11, 2025 12:07 am

Blacky wrote: Sun Aug 10, 2025 11:26 pm that's for a fourby Harv, the 2WD diffs are 5x4.5"

Like the bloke with the artificial leg, I stand corrected

Cheers,
Harv

badoom tish ........

Errol62 wrote:Solid choice of rear axle there. What ratio? Are they originally 4.5” &*#@ pattern?


FB ute fixer upper, EK van on rotisserie

Hi mate
Gear set is 3.7:1 , had the Axel's re patterned to early holden as well

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That is a very short ratio diff. Any idea what the overdrive ratio is in the box you have? Sorry about all the questions. Just thinking about how many revs you’ll be doing at the speed limit. 25 inch tyre height and 0.9:1 overdrive would be around 4500rpm. You could go up to around 27.5” tyre with 0.8:1 overdrive and get 3600rpm at 100kmh.


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Errol62 wrote: Fri Aug 15, 2025 9:16 pm That is a very short ratio diff.

It’s taller than factory FB/EK (3.89:1), or am I missing something? It’s very tall for a Toyota G diff (3.2 to 7.6:1).

Cheers,
Harv

Yeah sorry, that figure is for 100mph. Using the Tremec app Harv. Stock 6.4R13 tyre is 25.27”. 3.89:1 diff the old grey is going 3216 rpm at 62.15 mph. With the 3.7 and 10% overdrive it is more like 2800 rpm. Bit more than my ute with the 3.08:1 in top at 2500rpm. My bad.


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Errol62 wrote:That is a very short ratio diff. Any idea what the overdrive ratio is in the box you have? Sorry about all the questions. Just thinking about how many revs you’ll be doing at the speed limit. 25 inch tyre height and 0.9:1 overdrive would be around 4500rpm. You could go up to around 27.5” tyre with 0.8:1 overdrive and get 3600rpm at 100kmh.


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Hi Errol

Not sure mate box is a celica steel case 5 speed , will be running 15" wheels haven't got tyres as yet. The centre is a new true track and the gear set is new as well

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Diff is in finally, gets some tyres this week shocks in next weekend. Motivation is back !

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Looking good sneezy. Are you using the hilux brakes?


FB ute fixer upper, EK van on rotisserie

Errol62 wrote:Looking good sneezy. Are you using the hilux brakes?


FB ute fixer upper, EK van on rotisserie

Hi Errol , yeah mate its all hilux apart from the centre. Thinking we might run an electric park brake to cut down on custom cables.

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FB ute fixer upper, EK van on rotisserie

The rear shock/lower spring mounting plates aren't on quite right. They need to be turned over so the shock absorber mounting stud is at the forward, inside corner and pointing forwards. And it would probably be a good idea to put a rear spring rubber and retainer between the rear spring and the shock mounting plate.

Rob

ardiesse wrote: Sun Oct 12, 2025 9:33 pm The rear shock/lower spring mounting plates aren't on quite right. They need to be turned over so the shock absorber mounting stud is at the forward, inside corner and pointing forwards.

They look OK to me... but then again, I know a bloke who once incorrectly tack welded a set of slapper bars with the mounting plates in that position...


Glad you caught my stuff-up before they were fully welded. Gracias, amigo.

Cheers,
Harv