hodge Posted November 4, 2009 Share Posted November 4, 2009 hey folks Are na and tt auto diffs different. Thanks John Quote Link to comment Share on other sites More sharing options...
Kirk Posted November 4, 2009 Share Posted November 4, 2009 ratio wise there different, not to sure about actual size of the diff itself Quote Link to comment Share on other sites More sharing options...
Guest SupraGTE Posted November 4, 2009 Share Posted November 4, 2009 yes and no 3.769 (TT), 4.083 (NA) auto na W58 4.083 (NA correct me somebody if imerong Quote Link to comment Share on other sites More sharing options...
Guest SupraGTE Posted November 4, 2009 Share Posted November 4, 2009 so Na manual is the same as tt auto have both home and i can not see a difference not my dog either Quote Link to comment Share on other sites More sharing options...
keron Posted November 4, 2009 Share Posted November 4, 2009 no the donuts are different. where the propshaft meets the diff...the 3 17mm bolts...are spaced differently between the 2. na and tt are different. Quote Link to comment Share on other sites More sharing options...
Guest SupraGTE Posted November 4, 2009 Share Posted November 4, 2009 no the donuts are different. where the propshaft meets the diff...the 3 17mm bolts...are spaced differently between the 2. na and tt are different. Thank you keron ,so you can not but a NA diff on an auto TT? Quote Link to comment Share on other sites More sharing options...
hodge Posted November 4, 2009 Author Share Posted November 4, 2009 My plan is to use an auto TT diff on the car even though I'm going 6 speed. Apparently there more torquey. I guess I need to buy a diff then if the N/A diff is no good. Quote Link to comment Share on other sites More sharing options...
Guest SupraGTE Posted November 4, 2009 Share Posted November 4, 2009 My plan is to use an auto TT diff on the car even though I'm going 6 speed. Apparently there more torquey. I guess I need to buy a diff then if the N/A diff is no good. but can you not use the rear section from the NA prop and the front from the 6spd prop Quote Link to comment Share on other sites More sharing options...
Guest SupraGTE Posted November 4, 2009 Share Posted November 4, 2009 ... Quote Link to comment Share on other sites More sharing options...
hodge Posted November 4, 2009 Author Share Posted November 4, 2009 well that would save alot of trouble. Anyone know if this is possible and would an na diff take about 700 ish bhp. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted December 17, 2009 Share Posted December 17, 2009 bump , im curious, i want to put a tt auto torsion A on my w58 manual, what els will i have to swap and is the final drive the same ? look everyone i used the search button. Quote Link to comment Share on other sites More sharing options...
dude Posted December 17, 2009 Share Posted December 17, 2009 IMO I would not put the auto diff with a 6spd box, driven one and IMO it ruined the car, with a higher rev limit and a single maybe but for 1/4 mile use I'm using the UK 6spd I have with the Kazz lsd. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted December 17, 2009 Share Posted December 17, 2009 what about with the 5 speed box? Quote Link to comment Share on other sites More sharing options...
Terminator Posted December 17, 2009 Share Posted December 17, 2009 I run an auto TT LSD and the V160 6 speed box. I agree with Dude, if you have a standard rev limit and modest power the auto diff will be a retrograde step. You will see higher rpm at cruising speed and obviously across the entire rev range. With a big turbo and high rpm limit circa 9000rpm, the TT auto box V160 combo is great, they go very well together. The 5 speed box will not take 500 bhp for long. Much better to get a 6 speed box. Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted December 17, 2009 Share Posted December 17, 2009 I run an auto TT LSD and the V160 6 speed box. I agree with Dude, if you have a standard rev limit and modest power the auto diff will be a retrograde step. You will see higher rpm at cruising speed and obviously across the entire rev range. With a big turbo and high rpm limit circa 9000rpm, the TT auto box V160 combo is great, they go very well together. The 5 speed box will not take 500 bhp for long. Much better to get a 6 speed box. i no the 5 speed wont take 500 but how will the tt auto match up to it. is it true that the tt auto diff has the same finale drive as the open na diff? and will the driveshafts match upto it along with the prop ? Quote Link to comment Share on other sites More sharing options...
dude Posted December 18, 2009 Share Posted December 18, 2009 i no the 5 speed wont take 500 but how will the tt auto match up to it. is it true that the tt auto diff has the same finale drive as the open na diff? and will the driveshafts match upto it along with the prop ? Driveshafts I think will, the prop prob not so just get the back half of the matching tt prop Quote Link to comment Share on other sites More sharing options...
dr_jekyll Posted December 21, 2009 Share Posted December 21, 2009 Driveshafts I think will, the prop prob not so just get the back half of the matching tt prop cheers Quote Link to comment Share on other sites More sharing options...
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