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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Crawl/rock mode causes diff make noise , normal?
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<blockquote data-quote="Badgertits" data-source="post: 1404115" data-attributes="member: 31322"><p>Good thing on the Raptor vs. all other 1/2 tons available (as far as I know) - it is the ONLY one that can run in true "AWD" - there's a separate input shaft for the AWD function of the transfer case I believe vs. a pseudo partially engaged 4wd-hi "auto" mode that other 1/2 tons employ (including regular F150s) Where the axles are locked but the hubs do not engage until slippage is sensed.....in reality although you supposedly can drive in 4 "auto" in dry conditions I believe there is still concern for excessive wear & binding especially in full lock turns....additionally, there's a lag between when the front traction is needed & when the front hubs actually engage (at least on my GMC trucks) which could make the "help" of front drive traction a hinderance if its not engaging at the appropriate time. This is not a concern w/ the Raptor in 4A - you should be able to run that way all day every day wet dry rain mud grass sand snow etc etc etc</p><p></p><p>Its a nice feature & once you get used to driving the truck in general w/ how the tranny shifts & the weight balance etc. running it hard in Sport mode + 4A w/ traction control off = most fun driving experience possible in a full size pickup</p></blockquote><p></p>
[QUOTE="Badgertits, post: 1404115, member: 31322"] Good thing on the Raptor vs. all other 1/2 tons available (as far as I know) - it is the ONLY one that can run in true "AWD" - there's a separate input shaft for the AWD function of the transfer case I believe vs. a pseudo partially engaged 4wd-hi "auto" mode that other 1/2 tons employ (including regular F150s) Where the axles are locked but the hubs do not engage until slippage is sensed.....in reality although you supposedly can drive in 4 "auto" in dry conditions I believe there is still concern for excessive wear & binding especially in full lock turns....additionally, there's a lag between when the front traction is needed & when the front hubs actually engage (at least on my GMC trucks) which could make the "help" of front drive traction a hinderance if its not engaging at the appropriate time. This is not a concern w/ the Raptor in 4A - you should be able to run that way all day every day wet dry rain mud grass sand snow etc etc etc Its a nice feature & once you get used to driving the truck in general w/ how the tranny shifts & the weight balance etc. running it hard in Sport mode + 4A w/ traction control off = most fun driving experience possible in a full size pickup [/QUOTE]
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GEN 2 (2017-2020) Ford F-150 Raptor Forums
Ford F-150 Raptor General Discussions [GEN 2]
Crawl/rock mode causes diff make noise , normal?
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