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PV, 120 (Amazon), 1800 General Forum for the Volvo PV, 120 and 1800 cars |
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Ford type 9 - 5 speed gearboxViews : 1188 Replies : 21Users Viewing This Thread : |
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Feb 3rd, 2024, 23:14 | #11 |
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I was under the impression that B18 544 axles were 4.10. B16 were usually 4.56 but some later ones did come with 4.10. Small batches with 4.10 are listed in the parts book but I think a lot of them were exported. I had a '60 with a 4.10 that was bought in Denmark and ended up in Kenya(?). Are B18 axles interchangeable with B16 ones? Rally guys would likely prefer the 4.56 so that might be a source. Ask Rob at Amazon cars about it. He is having a clear out and may be able to supply.
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Feb 4th, 2024, 14:35 | #12 | |
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Feb 4th, 2024, 16:40 | #13 |
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The T9 option is not going to be inexpensive. The M41, although now rare, will probably be much less expensive.
The other option to consider is a different rear axle. I know that some people have used the 9" Ford rear differential which was in production from 1957 - 1986. These have been used in Volvo Amazons. The 9" is 'semi desirable' because the differential is offset slightly on the rear axle. The 1972 and earlier 31 spline axle can be shortened. Save the short side and cut down the long side to match the short side and I think the over all width matches an Amazon within 1" or so. Some details on narrowing here https://www.jegs.com/tech-articles/f...e-information/ Depending on the vintage of the rear axle you will end up with disk rear brakes which may or may not be desirable. I don't know what the availability of the Ford 9" is like on your side of the Atlantic. Brand new old axles are available because the 9" is a popular option for North American hot rodders. Clearly this will require some fabrication so definitely more complicated than an M41 installation and probably about the same as a T9 installation. It may be cheaper than a T9, particularly if you have to purchase an already rebuilt T9. If you do go with a Ford 9" rear end you will be set if you ever decide to drop a V8 engine in at some future date. |
Feb 4th, 2024, 17:24 | #14 |
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Thanks 142 Guy interesting reading, I will definitely look into the Ford axle option but am pretty sure these items will not be as common in UK. As for cutting and modifying it to suit the 544 may be outside my comfort zone. Never the less worth exploring. The entire renovation, which included months of welding on the shell and a total rebuild of body and engine has been done on a tight budget. So I was hoping the axle ratio was not going to turn out much of an issue. But it has! I am sure there are Volvo PV axles of the correct ratio available in Sweden and USA just not in UK as the cars were never officially imported here.
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Feb 5th, 2024, 11:32 | #15 |
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As the Ford Boxes are getting rare and expensive what about a more modern option like the Mazda MX5 gear boxes they have 5 and 6 gears
Plus more available and they look as if they can easily handle any power the Amazon engine can produce. |
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Feb 5th, 2024, 16:11 | #16 |
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Yes Bracpan I also considered the MX5 gearbox, the biggest drawback seems to be that the gearbox and bell housing are cast in one piece. So little hope of using a re machined Volvo bell housing as with the Ford box. I’ve never actually seen an MX5 box in the flesh but from photos they do seem excessively long which could lead to handbrake re location on the 544. As I mentioned in an earlier post a much simpler remedy to my low ratio axle issue might be to fit 195/80 x15 tyres on the rear. Calculations tell me this would be equivalent to having a 4.1:1 ratio. Unfortunately this size of tyre cannot easily be fitted on the front as fowling on the wing/ chassis occurs at steering lock. Castor angle may require adjustment but I am seriously tempted to try this option first.
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Feb 6th, 2024, 18:19 | #17 |
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It appears that at 1315mm the rear track of the PV and Amazon are the same. If you are going to convert an axle I would think new brackets on an Amazon one would be the way to go to get your 4.10. The rear brakes would also be plug and play.
Se Juular's list in Sales. |
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Feb 7th, 2024, 17:22 | #18 | |
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Feb 7th, 2024, 19:11 | #19 |
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Big tires on the back end - I am gettin' that 1970 454 Chevelle SS with fat tires on the back end vibe!
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