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02-19-2008
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#1 |
 
Join Date: Jan 2008
Location: Wichita, Ks.
Posts: 319
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FYI ZF rebuild info.........
Just thought I'd let everyone know that there can be some interchangeability issues with the '90 ZF when going with different rebuild options. My personal choice was to use a non ZR-1 ZF, and swap the guts into my original case, and change the input shaft. I feel this is the least expensive option, with very good results. However, here is the catch, the '90 has a unique bolt pattern for the exhaust hanger, that is changed in the later tailshafts. If you do not use the original tailshaft, the exhaust hanger will not bolt up properly! Does it cause a problem? No, but it just isn't right. This slipped past even the expertise of Bill B. so I wanted to get the word out. He thought he was doing me a favor by using the new tailshaft, with the new seal and what not. I now have to either change my tailshaft; (the install is complete; that's like one of the very last things you hook up) or live with it. I want to make clear, this is not a BB bashing thread, but more of a learnig curve/informational thread for all of us involved with these great machines.
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2009 LS9 1990 LT-5/sold/Bought my Baby back 1994 Lingenfelter LT-5/sold 1973 LS4/sold |
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02-19-2008
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#2 |
 
Join Date: Jul 2007
Location: Bartlett, IL
Posts: 7,169
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Re: FYI ZF rebuild info.........
Why not get a later exhaust hanger from a LT1/4 car? it should work and saves from changing out the tailshaft on the trans
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1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Custom Interior NCM Lifetime Member #978 |
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02-19-2008
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#3 | |
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Join Date: Jan 2008
Location: Wichita, Ks.
Posts: 319
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Re: FYI ZF rebuild info.........
Quote:
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2009 LS9 1990 LT-5/sold/Bought my Baby back 1994 Lingenfelter LT-5/sold 1973 LS4/sold |
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02-19-2008
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#4 | |
  
Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: FYI ZF rebuild info.........
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GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director  91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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02-19-2008
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#5 | |
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Join Date: Jan 2008
Location: Wichita, Ks.
Posts: 319
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Re: FYI ZF rebuild info.........
Quote:
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2009 LS9 1990 LT-5/sold/Bought my Baby back 1994 Lingenfelter LT-5/sold 1973 LS4/sold |
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02-19-2008
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#6 | |
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Join Date: May 2007
Location: Peoria, AZ
Posts: 9,155
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Re: FYI ZF rebuild info.........
Quote:
__________________
GOLDCYLON - 91 ZR-1 #2014 GOLDCYLON - 90 ZR-1 #2794, 4L60e (Formerly Schrade's) GOLDCYLON - 11 CTS-V Arizona State Director 91 WHITE/BLACK #2014. 380 P&P&PCed,Ported Heads, Jeal Long tubes, Corsa Exhaust/FIKSE FM-5s /LED TLs, LED Headlights, Front Wilwood 6 piston narrowlite calipers and rear Wilwood caliper street shop mod,CNCed Coolant Pipes,TPI Cvr,Filter cover,Stainless Bolts, DRM/DOM PROM /ZFDOC mod build #102,DRLs,BMAD with stainless Debris Screen,Coplan Air Blaster, Pioneer APP Radio 4,Brey-Krause HB,Sub Bar,Fire extinguisher seat mount,DRM Coilovers,LEDs everywhere,Compass mirror (orange),V1 DIC hidden display, Homelink sun visor, Carbon Fiber top x3 and APSIS Carbon Fiber interior, APSIS CF Steering Wheel/NAPA Leather, Banski trailing arms, Guldstrand front suspension,urethane bushings from Prothane (total suspension) ZFDoc drive shaft safety loop, raptor shift light (orange),AO engineering louver front plate, Console seat cushion, 96CE seats with black custom Sheepskins, ss billet catch can,Viper remote entry/alarm,Cragar Rear Louvers,LED side louver lights, Dewitts Radiator with SPAL fans and a Woods 160 T-Stat 90 RED/BLACK #2794. 4L60e Automatic Stage V by RPM Transmission, TCI Dedicated TCM, OBX Stainless Headers, Corsa Exhaust, SAN Secondaries and Haibeck PROM, Exotic Muscle Coil overs, LED Interior Lights, LED Tail Lights, LED Headlights, 94 Sport seats with black custom Sheepskins , Cragar rear louvers, GS Front calipers, Banski Trailing arms, APSIS Carbon Fiber steering wheel, Front and Rear Baer Eradispeeds, DRLs, Guldstrand front suspension,urethane bushings from Prothane (total suspension), Dewitt's Raditor with Dual SPAL fans and a Haibeck 170 T-Stat 11 RED/GREY CTS-V |
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02-19-2008
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#7 |
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Join Date: Oct 2007
Location: lone pine and mammoth lakes ca.
Posts: 544
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Re: FYI ZF rebuild info.........
thanx for the info. but to me , to have the new tailshaft and switching to the lt4 hangers is the way i would go . but i am just a drag racer thats not into keeping her factory perfect . having headers and after market exhaust negates the need to be factory perfect. jmho
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