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KAA last won the day on August 15 2018

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  1. Could be 3.18 : 1 ratio. There may be markings stamped around the ring gear but if you count the number of teeth on ring gear and divide by number of teeth on the pinion you will have the ratio.
  2. Yes, correct. Cars with polished trim fitted from new had spoilers with a cutout so that the plastic spoiler would fit snugly against the wing panel (Cavalier coupe/Sportshatch and late Manta B). If you bought a replacement spoiler it would come from the factory without the cutout (like the one in your picture). You sawed away the cutout to make it fit properly. The plain spoiler was used on cars without the arch trims (GT/J etc.), hence the spare part was sold to work with both options. There are a few arch-trim cars around without the cutout but they may have been fitted with accessory or replacement spoilers which were not modified at the time.
  3. It looks to be the same width across the half-shafts when comparing to my 400. I have just measured my spare Commodore C axle - using the point where axle tubes enter the differential housing (measuring from very edge of the differential casting) to outer face of the brake drums is 603mm, so about 600mm to face of the half-shaft flange. The top-arm bracket is 165mm to its inner position from the same datum and the bottom-arm bracket is 319mm to its inner position. I have a disc-braked Commodore B G/SE axle stored away and may try and compare that when I can get to it. Looking at the 400, the main differences are the top and bottom arm bracket positions - the top arms look to be 20/25mm further inboard (closer to differential housing), plus the bottom arm bracket fabrication is different. The Commodore lower arms are angled inwards slightly towards the front, however 400 arms are heavily angled inwards because a Manta is much narrower, therefore the axle bracket pivot is angled to suit. Panhard rod mounting bracket is also different and may be in a slightly different position. Bit of a struggle to measure the 400 with car stored away, although Herman also has a 400 and may be along at some point as I seem to remember he had some good photographs of the underside and may also have some measurements.
  4. The 400 rear axle is taken from the Opel Commodore B. If you can find an axle from the 2.8 GS/E model it will come with limited slip differential and disc brakes as per the 400 (hand brake uses small shoes in drums as part of the rear disc). The 400 road car uses a 3.18 : 1 axle ratio, again as usually found in Commodore GS/E models. The axle can also be found on other Vauxhall/Opel models such as Viceroy or Commodore C - although those usually have drum brakes on the 2.5 models. Lower arms on a 400 are the same as Commodore B and can also be found on Carlton Mk 1, Viceroy, Commodore C and Victor FE. Although all these cars are getting quite rare now. There is also an additional chassis rail welded to the standard floor pan which I think originated from the South African Chevrolet Chevair, this will also need fabricating to accept the axle arms.
  5. The 9:31 stamped on the crown wheel is the ratio - 31 divided by 9 = 3.44. 3.44 : 1 may not be the right ratio for the 1.9 auto if you want to keep it original (think it is probably 3.67 : 1 on your car).
  6. Yes, a 1.8 GT Hatchback Exclusive - shows as a 1796cc in blue, probably Monaco Blue originally. Fixed rear quarter lights as per the GT.
  7. The 'How Many Left' website lists all the model designations used on the DVLA database, although the numbers of cars are inaccurate due to unlicensed/un-sorned cars hidden away somewhere and the designations are sometimes wrong on many cars. https://www.howmanyleft.co.uk/?page=6&q=opel 55 Manta 1900 shown, so imagine yours is one of those. There is a Manta SR listed (and SR Auto), however given that only 5 SR and zero SR Auto are currently licensed or sorned your buyer is going to wait a long time before finding one anywhere near the condition of yours if he wants 'SR' on the V5c. It could even be that those are all 'A' series and that no 'B' series 'SR' exist at all unless someone has one tucked away in a shed somewhere...
  8. Dashboard - colour and grain pattern look spot-on...
  9. Hi Ian, Try Martrim, they have all the vinyl colours and textures available and are quick to send samples. https://www.martrim.co.uk/car-trimming-supplies/auto-seat-vinyl.php?page=5
  10. Paint code for White Gold is E421. You should be able to check this on the aluminium VIN plate riveted to the front panel - bottom row of stamping. A White Gold Manta with beige Daytona check seats will also have trim-code 308 stamped bottom-right of the plate. I cannot remember the grey Daytona check code at the moment but if your car is not showing 308 then the grey seats are probably original.
  11. Manta GL limited edition. All in silver with steel sunroofs and 2.0S engine. Yes, has basic instruments and four-spoke steering wheel. Blue interior trim like this (picture of my car interior, not the one for sale).
  12. https://www.ebay.co.uk/itm/231517627710 JGS 167Y in Polar White was the other one in the series - used for the Autocar road test.
  13. Shame it was crashed. JGS 166Y was one of the original Vauxhall-Opel press cars in 1983. The car featured in a really good magazine road test article in 1983 where it was up against a Lancia HPE 2000. Manta came out best against the Lancia and a whole list of other cars back then. I remember reading the article at the time and you can find some images on Flickr now after a bit of Googling. There were also some black and white press photos issued about July 1983 which I think featured 166Y, which ties-in with the June first registration, plus there were other press cars in the series. I think JGS 165Y was a gold coloured GT/E hatchback.
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