simpreza2 Posted July 10, 2004 Share Posted July 10, 2004 I have a 5spd push button 4wd loyale and Im thinking of swaping in a d/r. I know different transmissions came with different rear ends. I have both a 3.9 (currently in loyale) and a 3.7(in my xt im parting out) which should I use? and whats the difference, performace wise? It just I dont know anything about the rear diff and different gearing and what not. Link to comment Share on other sites More sharing options...
ezapar Posted July 10, 2004 Share Posted July 10, 2004 Your D/R will be a 3.9. (Unless it came from an RX) You will have to match the ratio in it with a 3.9 rear end. Link to comment Share on other sites More sharing options...
BobBrumby Posted July 10, 2004 Share Posted July 10, 2004 All the 3.9 means it that the engine has to spin 3.9 times to spin the output shaft once (or is it the other way arround?) Link to comment Share on other sites More sharing options...
carfreak85 Posted July 10, 2004 Share Posted July 10, 2004 engine turns once to spin the wheels 3.9 times. Link to comment Share on other sites More sharing options...
WoodsWagon Posted July 11, 2004 Share Posted July 11, 2004 No way. The car would be sooo fast if that was true. You'd just need to be rolling to move under it's own power. The pinion gear in the diff is smaller that the ring gear on the pumpkin, so It is a gear reduction. the drive shaft turns 3.9 times to turn the axels once. 3,7 will make the car faster in speed, 3.9 will make it accelerate faster. Link to comment Share on other sites More sharing options...
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now