The Transmission / Differential FAQ

Whizbang · 06-24-2010, 04:40 PM

i dont have an rx7 with a speedo... my gearing is all 4.78 anyway.

***TitaniumTT*** · 06-25-2010, 02:26 AM

Quote:

Originally Posted by sen2two

Found this for the people wanting to do a T5 swap... good general info.

http://www.flatheadv8.org/ernie/ernie-t5.htm

Also, the Rx8 diff internals do fit into TII casings with no modification, correct?

No, not even close, no fucking way, totally different box's

sen2two · 06-25-2010, 10:50 AM

are you refering to the diff or the tranny in my post?

I was only told this. Never seen the Rx8 diff in person, so that's why i asked...???

***TitaniumTT*** · 06-25-2010, 07:41 PM

Both

The carrier itself I BELIEVE is interchangeable but the pinions etc are not.

slidinsilly · 10-22-2010, 08:07 PM

i have an 87' NA with a welded rear end. do you have any info on what happens to the mounts that make it bang around? thanks

sen2two · 10-22-2010, 10:53 PM

welded diff is a no no...

But anyways, There are two diff mounts that bolt the rear of the diff to the body. Then there is a mount up front that bolts the nose of the diff to the sub-frame. This is most likely your problem. Search my name on here in the 2nd gen section and you'll see what I did to solve this problem.

slidinsilly · 10-23-2010, 04:34 PM

thanks for the quick response. thats the only mount that i didnt buy from racing beat the other day. the other tech at my work said to check the u joints. could this also be a problem?

edit: could you also post a link to the post u were talking about i cannt find it

rotaryracer · 05-15-2011, 08:33 AM

4.78!!!!!! Thank you for the info. I currently drive an '83 race car and auto-x/rally-x a bone-stock '87 TII. lots of useful info.

Renesisking · 05-16-2011, 12:24 AM

Incredible work man.

vex · 08-11-2011, 06:07 PM

Update:

http://kennedyenginc.com/OtherAdaptions.aspx

06-24-2010, 04:40 PM	#31
Whizbang Respecognize! Join Date: Jul 2008 Location: Δx = ħ/2Δp iTrader: (5) Posts: 3,190 Rep Power: 20	i dont have an rx7 with a speedo... my gearing is all 4.78 anyway. __________________ For current updates and event coverage check out Follow on Twitter! @WhizbangRally Whizbang Rally's Webpage \| Facebook

06-25-2010, 10:50 AM	#33
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	are you refering to the diff or the tranny in my post? I was only told this. Never seen the Rx8 diff in person, so that's why i asked...??? __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

06-25-2010, 07:41 PM	#34
*TitaniumTT* Test Whore - Admin Join Date: Mar 2008 Location: Right Behind you son iTrader: (4) Posts: 4,581 Rep Power: 10	Both The carrier itself I BELIEVE is interchangeable but the pinions etc are not. __________________ -The Angry Stig- DGRR 2009, 2011, 2012 & 2013 - Best FC DEALS GAP!! WOOHOOOO!!!!! 2015 Audi S4 - Samantha - Zero Brap S4 2004 RX8 - Jocelyn - 196rwhp, 19mpg fuel to noise converter 2000 Jeep Cherokee Sport - Wifey mobile - Now with 2.5" OME lift and 30" BFG AT KO's! So it begins 1998 Jeep Cherokee - 5 spd, 4" lift, 33" BFG's - Rotary Tow Vehicle 1988 'Vert - In progress 1988 FC Coupe - Gretchen -The attention whore BEAST! I'm a sick individual, what's wrong with you? I'm pure Evil I'm still insane, in the best possible way. I think Brian's idea of romance is using lube. Your rage caused the meteor strike in Russia. The Antichrist would be proud of his minion. You win with your thread. Most everything It's a truck with a steel gate on the back. Just a statement of fact Motec M820, AIM dash, ported 13B-RE Cosmo, 6-spd trans, 4.3 Torsen, custom twin wg fully divided mani, Custom 4" split into 2x 3" exhaust, Custom HMIC, Custom custom custom custom I like to welder stuff.... No Bolt-ons allowed. Dyno'ed @ Speed1 Tuned by me - 405rwhp on WG.... WM50 cuming soon. *-Angry Motherfcker Mode ENGAGED-**

10-22-2010, 10:53 PM	#36
sen2two KTEC Join Date: Jan 2009 iTrader: (2) Posts: 642 Rep Power: 0	welded diff is a no no... But anyways, There are two diff mounts that bolt the rear of the diff to the body. Then there is a mount up front that bolts the nose of the diff to the sub-frame. This is most likely your problem. Search my name on here in the 2nd gen section and you'll see what I did to solve this problem. __________________ what I have: 1985 Gs:12a All motor Drag car - 1973 Rx2: Play car What I had: 93 Touring: TRADED - 91 Coupe: TRADED - 90 GTU: RHD - 88 10AE: SOLD - 87 Base: SOLD - 86 Base: SOLD - 1985 GSLSE - 85 Gsl: SOLD - 80 Gs: TRADED - 1972 Rx2

10-23-2010, 04:34 PM	#37
slidinsilly The Newbie Join Date: Oct 2010 iTrader: (0) Posts: 4 Rep Power: 0	thanks for the quick response. thats the only mount that i didnt buy from racing beat the other day. the other tech at my work said to check the u joints. could this also be a problem? edit: could you also post a link to the post u were talking about i cannt find it Last edited by slidinsilly; 10-23-2010 at 04:51 PM..

10-22-2010, 08:07 PM	#35
slidinsilly The Newbie Join Date: Oct 2010 iTrader: (0) Posts: 4 Rep Power: 0	i have an 87' NA with a welded rear end. do you have any info on what happens to the mounts that make it bang around? thanks

05-15-2011, 08:33 AM	#38
rotaryracer The Newbie Join Date: Dec 2009 Location: Tulsa,Ok. iTrader: (0) Posts: 20 Rep Power: 0	4.78!!!!!! Thank you for the info. I currently drive an '83 race car and auto-x/rally-x a bone-stock '87 TII. lots of useful info.

05-16-2011, 12:24 AM	#39
Renesisking Rotary Fan in Training Join Date: May 2009 Location: Connecticut iTrader: (0) Posts: 39 Rep Power: 0	Incredible work man. __________________ 2004 RX-8. I would love to tune it but can't find the right parts for Microtech

08-11-2011, 06:07 PM	#40
vex RCC Loves Me Not You Join Date: Jul 2008 Location: Influx. iTrader: (6) Posts: 2,113 Rep Power: 19	Update: http://kennedyenginc.com/OtherAdaptions.aspx __________________ The Official FC Radiator Thread My Project Thread: Cerberus CCVT Virginia Rotary Group