hwcurtice
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Down and dirty: What's the difference between the m35a1 and the m35a2?
Other than the number?
Other than the number?
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a1 vs a2?
- Thread starter hwcurtice
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Varyag
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Transmission is different, most had a sprag and they had the short lived 427 multi fuel.
hwcurtice
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So, from that, this is why the a2 is the preferred method of Deuce?
I'll go search for a 'sprag'...
How is the transmission different?
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Smoke. Lots and lots of smoke from the A1.
hwcurtice
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Varyag
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The 427 had reliability issues from what I have heard. The transmission had a different shift pattern. I can't tell you much on the gearing other then the plate I have on my wall from one shows a top speed of 60 rather then 56.
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The LDS427 did suffer from reliability issues. Those that ran, ran well! Those that didn't, well they failed. The A1 was not an exclusive truck to the sprag. Gassers (unless changed) had them and a good number of A2s had them. Air shifts were intigrated into production trucks around 1969 but that's not to say later trucks didn't get some. Deuces had 2 transmissions (not including the A3 stuff) from production. The Spicer 3052 which has a 1 to 1 final ratio and the 3053A which has overdrive. The 2 A1 trucks I've been close to both had he same overdrive as my A2s had. Again, only God knows what was factory for each truck.
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The transmission is the same. Gassers had a different shift pattern(3052 vs 3053A). The transfer case is usually different, sprag vs air shift. Almost all A1's were updated with A2 parts even if the data plate still says A1.
hwcurtice
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So, in other words, in some cases, there isn't any real difference other than the number? There really isn't a 'Standard a1 or a Standard a2?
Hit or miss? Some may be super upgraded, some may be bone stock from which ever factory they came from...
hmmmm Dart board time, right?
Hit or miss? Some may be super upgraded, some may be bone stock from which ever factory they came from...
hmmmm Dart board time, right?
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Katahdin
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Rebuilt sprags were going into A2 trucks at least 20 years after the A2 was introduced, I'd say just the engine would be positively different based on what I've learned about my truck and reading the older TMs.
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Correct, the A1 was the 427 and had the overdrive transmission. The A2 is the 465. The gasser has the 1:1 transmission with the NORMAL shift pattern not the reversed 4/5.
Best I recall all A1's were converted gassers, not sure they ever built an A1. A2's were the gold standard and made that way. Transfer case in not an issue, air shifts were later due to problems with the sprag units. (To light for the size of truck.)
Best I recall all A1's were converted gassers, not sure they ever built an A1. A2's were the gold standard and made that way. Transfer case in not an issue, air shifts were later due to problems with the sprag units. (To light for the size of truck.)