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RRUK
Site Supporter

Member Since: 31 Mar 2010
Location: Leicestershire
Posts: 2028

This might be a dumb question

So, would a 1993 standard Defender with steel wheels be able to swap to Boost alloys? I know the alloys need different nuts but wondered if there’s any issues with the studs or fitting over the hubs etc?

I think I know the answer but…. Best to check with the masses.

Thanks for any answers 2016 D4 HSE

1998 110 TUM HS FFR Hard Top XD WOLF

1982 Series 3 SWB Petrol

11th May 2025 6:15pm

jonny

Member Since: 10 Mar 2013
Location: North Wilts
Posts: 190

If the drive flanges are standard, then yes, it should fit just fine.

If you have heavy duty (aftermarket) drive flanges, the wheels will fit, but the centre caps won't...

11th May 2025 7:08pm

Dinnu

Member Since: 24 Dec 2019
Location: Lija
Posts: 3551

2012 Defender 90 Puma 2.2 CSW Santorini Black

1993 would still be a 200tdi, which I think is still 10 spline axles with larger drive member. If that is correct, you would need spacers (30mm). 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black

11th May 2025 7:19pm

RRUK
Site Supporter

Member Since: 31 Mar 2010
Location: Leicestershire
Posts: 2028

So, 2 contradictory answers!

Still confused 2016 D4 HSE

1998 110 TUM HS FFR Hard Top XD WOLF

1982 Series 3 SWB Petrol

13th May 2025 4:32pm

Grouse

Member Since: 16 Apr 2012
Location: on the hill
Posts: 532

This may assist :-

https://www.web-rover.co.uk/nav.php?p=articles/alloys

Whilst the drum brake element won’t be relevant - the front axle element maybe, if so the same should apply to the rear axle on a 200

13th May 2025 4:57pm

Whirly90

Member Since: 01 Sep 2016
Location: Ampshire
Posts: 408

1993 Defender 90 300 Tdi HT Keswick Green

Dinnu wrote:
1993 would still be a 200tdi, which I think is still 10 spline axles with larger drive member. If that is correct, you would need spacers (30mm).

The 200tdi started with 10 spline axles with drums so alloys won't fit without spacers, the axles were changed in 1993 for 24 spline axles with discs so the alloys should bolt straight on.

13th May 2025 5:19pm

mini Anaconda

Member Since: 23 Aug 2016
Location: Thames Valley
Posts: 812

I have freestyle alloys on my 1989 Ninety (disc brakes on the front, drums at the rear) - they fit fine without spacers, but the centre cap won't fit as shown below. Assume it would be the same situation for boost alloys.

Click image to enlarge BORG - Bucks & Oxon 4x4 Response Group

13th May 2025 5:29pm

RRUK
Site Supporter

Member Since: 31 Mar 2010
Location: Leicestershire
Posts: 2028

Ok I think I’ve got the answer now.

It’s a 93 200Tdi with discs on the rear too so think it’s 24 spline and they’ll be fine 2016 D4 HSE

1998 110 TUM HS FFR Hard Top XD WOLF

1982 Series 3 SWB Petrol

13th May 2025 10:12pm

jonny

Member Since: 10 Mar 2013
Location: North Wilts
Posts: 190

If you measure how much the caps stick out from the mounting face on the hub, I'll have a measure of the set of boosts that I have kicking about which should give you a definitive answer.

15th May 2025 6:38pm

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