ZF6 info needed - ZR-1 Net Registry Forums

8upZR1 · 08-06-2008

Hello everyone,

I have some ZF questions I thought someone here might know. Im currently finishing a Gen 1 407 to take the place of my LT5 and for transmission Id like to keep the LT5's ZF6 for now. I have procured a bellhousing from an LT1 C4 but I still have my original input shaft, which just aint gonna work. I can buy the LT1 input shaft and bearing retainer no problem. Does anyone know intimately what's involved with swapping the inputs? Obviously a full rebuild, but how difficult is it? What specialty tools are required? Is there a reliable source for rebuild info? Is it worth the $$$ to have it done by a shop specializing in ZFs? Is there anyone who makes a stronger input shaft? The aforementioned SBC will most likely have massive torque, what will be the first thing to break in the ZF? Any other weak links? Are there any proven mods that will greatly increase reliabilty or power handling capacity? Sorry about so many ???s but I really dont know much at all about this tranny except that I like the way is shifts w/ the B&M stick. Any info would be greatly appreciated.

tomtom72 · 08-06-2008

I would say to go over to zfdoc's web site. zfdoc.com, Bill is a very stand up guy and will share his knowledge freely. You might also get the answer about the C-beam from him too.

Only thing is that Bill is always very busy in the shop, quality shops usually are that way, so it may take some time for an e-mail response from him....but, he will answer your Q's freely if he has anything to share.

PhillipsLT5 · 08-06-2008

Call Bill, he has the knowledge

GOLDCYLON · 08-06-2008

Another vote Ask Bill B

8upZR1 · 08-07-2008

Sounds like hes the guy to talk to. Thanks for the info.

08-06-2008	#1
8upZR1 Join Date: Jun 2006 Location: Thunderbolt, Ga. Posts: 253	ZF6 info needed Hello everyone, I have some ZF questions I thought someone here might know. Im currently finishing a Gen 1 407 to take the place of my LT5 and for transmission Id like to keep the LT5's ZF6 for now. I have procured a bellhousing from an LT1 C4 but I still have my original input shaft, which just aint gonna work. I can buy the LT1 input shaft and bearing retainer no problem. Does anyone know intimately what's involved with swapping the inputs? Obviously a full rebuild, but how difficult is it? What specialty tools are required? Is there a reliable source for rebuild info? Is it worth the $$$ to have it done by a shop specializing in ZFs? Is there anyone who makes a stronger input shaft? The aforementioned SBC will most likely have massive torque, what will be the first thing to break in the ZF? Any other weak links? Are there any proven mods that will greatly increase reliabilty or power handling capacity? Sorry about so many ???s but I really dont know much at all about this tranny except that I like the way is shifts w/ the B&M stick. Any info would be greatly appreciated. __________________ IT IS THE FATE OF THE INNOCENT TO MEET WITH DEATH!!!

08-06-2008	#2
tomtom72 Join Date: Dec 2004 Location: Jacksonville, FL USA Posts: 4,645	Re: ZF6 info needed I would say to go over to zfdoc's web site. zfdoc.com, Bill is a very stand up guy and will share his knowledge freely. You might also get the answer about the C-beam from him too. Only thing is that Bill is always very busy in the shop, quality shops usually are that way, so it may take some time for an e-mail response from him....but, he will answer your Q's freely if he has anything to share. __________________ 1990 ZR-1, Black/grey, #2233, stock. ZR-1 Net Reg Founding Member #316 & NCM member

08-06-2008	#3
PhillipsLT5 Join Date: Aug 2005 Location: Scottsdale, AZ Posts: 2,452	Re: ZF6 info needed Call Bill, he has the knowledge

08-06-2008	#4
GOLDCYLON Join Date: May 2007 Location: Peoria, AZ Posts: 9,155	Re: ZF6 info needed Another vote Ask Bill B __________________ 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

08-07-2008	#5
8upZR1 Join Date: Jun 2006 Location: Thunderbolt, Ga. Posts: 253	Re: ZF6 info needed Sounds like hes the guy to talk to. Thanks for the info. __________________ IT IS THE FATE OF THE INNOCENT TO MEET WITH DEATH!!!