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| D2 - Axles, Brakes, Suspension and Steering Brakes, Springs, shocks, steering racks, steering columns, suspension arms, wheel hubs etc. |
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#1
29th March 2021, 11:36 AM
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PF / FL Subframe Differences?
Have got the opportunity to get my hands on a pair of good subframes, only potential issue being that they are from a Pre-Facelift whereas my 3.7QS is a 2000 Facelift.
I'd be transplanting all of my own components over onto the new frames - any idea anyone if the PF subframes will fit okay. Any small or any significant differences anyone is aware of please? Thanks!
__________________
2000 FL A8 3.7 QS - Turned 21 years old on 15th March 2021. Ming Blue - 175k miles. I love having a 90's car worthy of 90L of 98 RON! If only they still did 4* fully leaded! 2009 A8 4.2 FSi LWB - Marine Blue - 164k miles. Extras? Too many to list. But I do like the Rear Seat Entertainment . . . . . . 477k miles to the moon and back. 238k to go and between them they'll have made it! 
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#2
29th March 2021, 01:51 PM
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The front is the same apart from the mounting holes for the subframe brace between the gearbox mounts which the FL has.
The PF rear subframe is the same part as the FL A8 which will be fine for you.
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#3
29th March 2021, 01:59 PM
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Thank you!
Is it possible to simply drill the holes for the 'subframe brace between the gearbox mounts' you mention?
__________________
2000 FL A8 3.7 QS - Turned 21 years old on 15th March 2021. Ming Blue - 175k miles. I love having a 90's car worthy of 90L of 98 RON! If only they still did 4* fully leaded! 2009 A8 4.2 FSi LWB - Marine Blue - 164k miles. Extras? Too many to list. But I do like the Rear Seat Entertainment . . . . . . 477k miles to the moon and back. 238k to go and between them they'll have made it!
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#4
29th March 2021, 02:40 PM
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Yeah you could do. There are welded nuts on the FL version which you could either replicate or just use a nut & bolt, although access would be tricky since they are behind the gearbox mounts.
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#5
29th March 2021, 06:34 PM
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Have done a bit of looking into this. But can't quite picture it all. Is this the brace/support of which you speak?
And in the exploded diagram: If I am right, I can't picture what holes might be missing on the subframe. Which means I'm looking at it wrong, of course. To me it appears that the rearmost 3 holes must go into the bodyshell/floorpan, the middle large one must be there for the main mounting bolt through the rear bush and the frontmost 2 (bolts #42) are part of the brace itself. Can you correct my vision, please?  Just trying to judge the difference in jobs between tarting up a rusty FL subframe vs drilling and welding a PF.
__________________
2000 FL A8 3.7 QS - Turned 21 years old on 15th March 2021. Ming Blue - 175k miles. I love having a 90's car worthy of 90L of 98 RON! If only they still did 4* fully leaded! 2009 A8 4.2 FSi LWB - Marine Blue - 164k miles. Extras? Too many to list. But I do like the Rear Seat Entertainment . . . . . . 477k miles to the moon and back. 238k to go and between them they'll have made it!
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#6
29th March 2021, 07:47 PM
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Part 43. The captive nuts are hidden between the gearbox mount (4) and the subframe, in the flange where #5 goes
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#7
29th March 2021, 09:12 PM
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Quote:
__________________
 Autos Autos everywhere... (1) 2015 Tesla Model S: (was 85D, now 90D  ). Silent and deadly, and very fast... But not as fast as Ian's M3P-  (2) 2002 D2 S8 Final Edition: Bulletproof and faultless: Brilliant Black with Extended (Red!) Leather. Three-times winner of Best D2 1st prize (3) 1997 Fiat Coupe 20v Turbo: Scots (! ) Green. Fragile, but beautiful.(4) 2010 Fiat Panda 100HP. White Pandamonium (Final Edition!!). Pure old-fashioned 6-speed go-karting.
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#8
29th March 2021, 09:57 PM
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Quote:
 ):With the subframe off the car it should be fairly straightforward to remove the existing brace from the car, line it up on the PF one, drill the holes and weld the new captive nuts on the upperside behind the gearbox mount?
__________________
2000 FL A8 3.7 QS - Turned 21 years old on 15th March 2021. Ming Blue - 175k miles. I love having a 90's car worthy of 90L of 98 RON! If only they still did 4* fully leaded! 2009 A8 4.2 FSi LWB - Marine Blue - 164k miles. Extras? Too many to list. But I do like the Rear Seat Entertainment . . . . . . 477k miles to the moon and back. 238k to go and between them they'll have made it!
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#9
30th March 2021, 06:24 AM
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Quote:
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#10
30th March 2021, 07:56 PM
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Excellent, thanks!
Now trying to persuade the seller that he can 'post' them to me. (His usual courier has said 'no chance') Eyeballing them, I reckon the pair could fit on a 100cm x 120cm standard pallet and be about 50-60cm high. Total weight <75kg I reckon. Any thoughts?
__________________
2000 FL A8 3.7 QS - Turned 21 years old on 15th March 2021. Ming Blue - 175k miles. I love having a 90's car worthy of 90L of 98 RON! If only they still did 4* fully leaded! 2009 A8 4.2 FSi LWB - Marine Blue - 164k miles. Extras? Too many to list. But I do like the Rear Seat Entertainment . . . . . . 477k miles to the moon and back. 238k to go and between them they'll have made it!
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