| I Ride Sand |
Mon Jun 18, 2012 12:41 am |
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alright, i am building my first transaxle and was planning on using a gearset that has a close ratio 3rd and 4th, but found a nick on second gear on the mainshaft. this is a high horsepower build (190hp) going into a mid engine swingaxle sandrail.
the reason i ask about splined vs. keyed is because i have two stock gearsets that i had laying around that would work fine providing they can handle the abuse. will a hardened key be the weak link or will the trans break elswhere first? im running a 32 inch tire, 4.375 R & P, and a double circliped stock diff with 10/15 spiders rather than 11/17. this may or may not go into a rhino case, if not it will be a gusseted stock case.
i won't be hammering the car with clutch dumps and full throttle through the whoops, but it will see hill climbs and simular. driven hard but not abused.
also, i dont expect this to last forever, just a season or two would be sufficient. my tuition was $1000 more than i originally thought, so it ate my buggy budget... :shock: :x so, because of that, i only have a couple hundred to play with... i had to sell my other toys to buy this rail, then i had to take the money from the sales in order to store up enough tuition, but i really need to have a way to chill out and cruize on the weekends in the desert. so, i decided a bulletproof trans will have to wait, till then i'll run this setup if it can handle it. |
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| mcmscott |
Mon Jun 18, 2012 7:34 am |
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| A stock keyed mainshaft is a 3.80 first gear, as a splined mainshaft is a 3.78 first. 113 type vrs 002 type. The 3.80 first gear will probably be your weak link, however a 4.37 r/p is not that strong, and in a sand car keep the super diff, turning brakes are going to take out any two spider gears in a hurry! Doesn't matter if they are ten or eleven tooth |
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