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Home > Puma (Tdci) > What are the predrilled holes in the chassis for?
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trevorg



Member Since: 28 May 2022
Location: Aisne
Posts: 51
France 2012 Defender 90 Puma 2.2 SW Indus Silver
What are the predrilled holes in the chassis for?
Decided to have a look under the truck today (MY 2012 90) in case there were some rust issues that needed addressing and was surprised to see a number of predrilled holes in the chassis rail. This is probably a stupid question but what are they for? Are there potentially bits of kit that would be attached by the use these holes? Seems to me they are just a potential source of future grief.

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Post #982314 13th Feb 2023 4:58pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3431
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
The large ones are alignment holes when fitting the bulkhead. But unsure if both on each side are used, but presumably yes, as 2 holes on one side give both location and rotation. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #982316 13th Feb 2023 5:13pm
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Dinnu



Member Since: 24 Dec 2019
Location: Lija
Posts: 3431
Malta 2012 Defender 90 Puma 2.2 CSW Santorini Black
PS, you have a bigger hole just behind the bulkhead outrigger.
I think holes are good to have as aid in drying any water that gets in. 1988 90 Hard Top, 19J Diesel Turbo, Shire Blue - Restoration ongoing
2012 90 CSW, 2.2TDCI, Santorini Black
Post #982317 13th Feb 2023 5:15pm
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rustandoil



Member Since: 08 Sep 2012
Location: Cotswolds
Posts: 754
England 2005 Defender 110 Td5 XS DCPU Bonatti Grey
The hexagonal holes are for rivnuts...
Post #982318 13th Feb 2023 5:31pm
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Retroanaconda



Member Since: 04 Jan 2012
Location: Scotland
Posts: 2661
Scotland 
Rivnuts for side steps or various other accessories that may or may not be fitted along the line. Some of them are for transmission mounts which were bolted onto the chassis on earlier vehicles.
Post #982319 13th Feb 2023 5:39pm
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trevorg



Member Since: 28 May 2022
Location: Aisne
Posts: 51
France 2012 Defender 90 Puma 2.2 SW Indus Silver
Thank you. A useful bit more knowledge though still a long way to go before I fully understand it all.
Post #982329 13th Feb 2023 6:51pm
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WPRO18



Member Since: 13 Feb 2023
Location: London
Posts: 89
 2005 Defender 90 Td5 SW Cairns Blue
I always thought Land Rover did it to help retain mud and dirt... well at least it for my prior Landy Laughing
Post #982355 13th Feb 2023 8:40pm
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spudfan



Member Since: 10 Sep 2007
Location: Co Donegal
Posts: 4722
Ireland 
They are there to let the air inside the chassis to make it lighter for lifting when it needs replacing... Whistle 1982 88" 2.25 diesel
1992 110 200tdi csw -Zikali
2008 110 2.4 tdci csw-Zulu
2011 110 2.4 tdci csw-Masai
Post #982467 14th Feb 2023 7:42pm
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