jarradr32 Posted February 25, 2007 Share Posted February 25, 2007 hey all just asking around to see if anyone has fitted a rb25de gearbox to a 32 rb20det at all. was wondering if the tailshaft has to be modified like the rb25det box and also getting a mixed opinion on the 33 non turbo box to the 33 turbo. they are different right Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/ Share on other sites More sharing options...
Simon-S14 Posted February 25, 2007 Share Posted February 25, 2007 RB25DE box is same as RB20det will fit Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2933083 Share on other sites More sharing options...
T04GTR Posted February 25, 2007 Share Posted February 25, 2007 yeah there the same. just swap the speedo drives over. Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2933712 Share on other sites More sharing options...
jarradr32 Posted February 26, 2007 Author Share Posted February 26, 2007 so i would keep the speedo drive off existing rb20 box and put on rb25de box Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2935954 Share on other sites More sharing options...
[mez] Posted February 26, 2007 Share Posted February 26, 2007 Correct. Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2935998 Share on other sites More sharing options...
neo32 Posted February 27, 2007 Share Posted February 27, 2007 just put another turbo box in or bite the bullet and put the turbo 25 box in its not that hard and much stronger Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2940336 Share on other sites More sharing options...
dead32 Posted February 28, 2007 Share Posted February 28, 2007 ive got a mate with a dr30, he has rb20 with rb25de box, everything lines up sweet except his speedo, thats just cause its old school you shouldnt have a worry. Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2942858 Share on other sites More sharing options...
jarradr32 Posted March 1, 2007 Author Share Posted March 1, 2007 how does your mates box go behind the rb20. immjust guessing but wouldnt a rb25de box be in better nic than the rb20det cause less pressure on the box due to it being naturally aspirated Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2945547 Share on other sites More sharing options...
SirRacer Posted March 2, 2007 Share Posted March 2, 2007 they are the same box, no mods at all needed Link to comment https://www.sau.com.au/forums/topic/157940-rb25de-box-to-rb20det/#findComment-2949019 Share on other sites More sharing options...
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