T-5 swap gone bad
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: T-5 swap gone bad
Edit: batwing usually refers to the weight on the flexplates.
Joined: Feb 2015
Posts: 345
Likes: 19
From: Fayetteville, NC
Car: 1992 Z28 1991 RS
Engine: LB9 LO3
Transmission: 5 speeds
Re: T-5 swap gone bad
Yes, the weight is on both flywheels directly across from the locating hole. It’s more obscure on the bottom flywheel because of the rust.
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: T-5 swap gone bad
OH. Sorry, obscure is right, I can't see it.
Joined: Jun 2000
Posts: 5,364
Likes: 51
From: Enschede, Netherlands
Car: 82 TA 87 IZ L98 88 IZ LB9 88 IZ L98
Engine: 5.7TBI 5,7TPI 5.0TPI, 5,7TPI
Transmission: T5, 700R4, T5, 700R4
Axle/Gears: 3.08, 3.27, 3.45, 3.27
Re: T-5 swap gone bad
And as you can see both are counterweighted
Joined: Jul 1999
Posts: 1,992
Likes: 10
From: CT
Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
Re: T-5 swap gone bad
Both are for 1pc rms, so I believe either would be correct. TPI cars got the lighter flywheel and the TBI cars got heavier piece. Performance wise I would think one would prefer the lighter flywheel. I have a flywheel from an 2wd 87 Chevy truck that came with a 1pc rms sbc and a 4 speed. I will dig it out tomorrow and see if/how it’s different.
i changed to the lighter flywheel on a clutch swap when i was running a cammed 305 and i did not like it.. no momentum on take off. went back to the heavy one
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: T-5 swap gone bad
The one with the small counterweight that compensates for the change in the crank flange from 2 pc to 1 pc.
post #37 https://www.thirdgen.org/forums/tran...ml#post6224367
Last edited by NoEmissions84TA; May 26, 2018 at 06:14 PM.
Joined: Jul 1999
Posts: 1,992
Likes: 10
From: CT
Car: 1986 Camaro SC
Engine: 305 TPI Procharged D1SC
Transmission: Tremec TKO-600
Axle/Gears: Moser 12 Bolt 3.73 posi
Re: T-5 swap gone bad
So to clarify, this is the flywheel heavyduty needs, correct? p/n 14088671 N
The one with the small counterweight that compensates for the change in the crank flange from 2 pc to 1 pc.
post #37 https://www.thirdgen.org/forums/tran...ml#post6224367
The one with the small counterweight that compensates for the change in the crank flange from 2 pc to 1 pc.
post #37 https://www.thirdgen.org/forums/tran...ml#post6224367
Thread Starter
Junior Member
Joined: Nov 2005
Posts: 84
Likes: 0
From: TEXAS
Car: 1991 Camaro RS
Engine: stock 305
Transmission: T-5
Axle/Gears: 4th gen with 342's
Re: T-5 swap gone bad
****UPDATE**** so the vibration problem has been solved.... It was a simple fix. The one piece RMS 5.0 takes a NEUTRAL balanced flywheel... Dont care if the flex plate has the butterfly weight on it... Finally had the chance to swap out the standard balanced for the neutral balanced and reused all the hardware and NO balance... Im thinking the information on this subject should be updated so others dont run into this issue. Thanks to everyone that offered advice on the subject it was much appreciated.
Joined: Feb 2017
Posts: 4,174
Likes: 569
From: Meriden, CT 06451
Car: 84 TA orig. 305 LG4 "H" E4ME
Engine: 334 SBC - stroked 305 M4ME Q-Jet
Transmission: upgraded 700R4 3200 stall
Axle/Gears: 10bolt 4.10 Posi w Lakewood TA Bars
Re: T-5 swap gone bad
Glad you solved it. 
Do a burnout to celebrate.
Do a burnout to celebrate.
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