ZF6 swap???
Thread Starter
Instructor
Joined: Apr 2009
Posts: 164
Likes: 1
From: Modesto California
ZF6 swap???
So my question is can I go find a ZF6 in any 89 and up Vette and put it in my 86 to junk my 4+3....any mods needed for the shifter, bell housing, or driveline? Thanks!!
Team Owner
Joined: Feb 2006
Posts: 24,460
Likes: 7
From: sw Ohio
Yep it will bolt in provided that you also get the ZF6 clutch, bellhousing, and all of the ZF6 hydraulics. Keep in mind also that it uses a dual mass flywheel over the single mass used on a 4+3. I think you can still use the single mass.
Thread Starter
Instructor
Joined: Apr 2009
Posts: 164
Likes: 1
From: Modesto California
Drifting
Joined: Dec 2003
Posts: 1,493
Likes: 94
From: Westfield MA
http://members.cisdi.com/~anesthes/f-car-t5/
Pro
Joined: Jan 2003
Posts: 515
Likes: 3
From: newark DE
i wouldnt install a 5speed trans from a 3rdgen fbody... keep in mind GM never put a manual trans behind the 350TPI in those cars. they couldnt handle the torque of the larger cubic inch motor. they only put those transmissions behind the 305 for a reason
Melting Slicks
Joined: Feb 2006
Posts: 2,753
Likes: 15
From: backwoods upstate ny
late f-bod t-5's (world class) are rated for 300 ft-lb, close to what a stock c4 engine can muster...sticky tires and burn-outs are "abuse" that will kill a t-5 in a short, but even "rock-crushers" eventually.
given the vettes reduced bulk vs an f-bod, the t-5 should live in a vette longer than in an f-bod, and many f-bod t-5's do the bunny/drum act.
Last edited by redrose; Apr 25, 2009 at 10:03 PM.
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Pro
Joined: Jan 2003
Posts: 515
Likes: 3
From: newark DE
rumor i heard was not engine torque but that the f-body 7.5''/7.625'' ring gear rear ends couldn't handle the manual trans hits...maybe same prob as d36 (7.5") rears in the 84 vettes with 4-3's that led to d44 rears in later year c4 manual trans vettes.
late f-bod t-5's (world class) are rated for 300 ft-lb, close to what a stock c4 engine can muster...sticky tires and burn-outs are "abuse" that will kill a t-5 in a short, but even "rock-crushers" eventually.
given the vettes reduced bulk vs an f-bod, the t-5 should live in a vette longer than in an f-bod, and many f-bod t-5's do the bunny/drum act.
late f-bod t-5's (world class) are rated for 300 ft-lb, close to what a stock c4 engine can muster...sticky tires and burn-outs are "abuse" that will kill a t-5 in a short, but even "rock-crushers" eventually.
given the vettes reduced bulk vs an f-bod, the t-5 should live in a vette longer than in an f-bod, and many f-bod t-5's do the bunny/drum act.
the 84' Vettes had 290ftlbs, so maybe a stock Crossfire would be ok, but once you cross into the 85' and above cars, the L98 easily surpasses the 300ftlbs rating of the T5
if it were my car, id be hesitant about doing all that work to retrofit a tranny that may grenade on me a few months down the road
theres a guy in the "parts for sale" section selling everything you need to swap a ZF6 into a C4. its got some milage on it, but hes only asking $1000
http://forums.corvetteforum.com/c4-p...-1000-obo.html
Last edited by tpivette; Apr 26, 2009 at 07:53 AM.
Burning Brakes
Joined: Aug 2007
Posts: 915
Likes: 0
From: salinas ca
the 4thgen fbodies have pretty much the same 7.5"/7.625" rear and they have manual transmissions behind their LT1s/LS1s, although its the much stronger T56
the 84' Vettes had 290ftlbs, so maybe a stock Crossfire would be ok, but once you cross into the 85' and above cars, the L98 easily surpasses the 300ftlbs rating of the T5
if it were my car, id be hesitant about doing all that work to retrofit a tranny that may grenade on me a few months down the road
theres a guy in the "parts for sale" section selling everything you need to swap a ZF6 into a C4. its got some milage on it, but hes only asking $1000
http://forums.corvetteforum.com/c4-p...-1000-obo.html
the 84' Vettes had 290ftlbs, so maybe a stock Crossfire would be ok, but once you cross into the 85' and above cars, the L98 easily surpasses the 300ftlbs rating of the T5
if it were my car, id be hesitant about doing all that work to retrofit a tranny that may grenade on me a few months down the road
theres a guy in the "parts for sale" section selling everything you need to swap a ZF6 into a C4. its got some milage on it, but hes only asking $1000
http://forums.corvetteforum.com/c4-p...-1000-obo.html
Not to bang on the guy, but the hydraulics the guy is selling look toast! Bad hydraulics are what lead to toasted zfs. I would be hesitant buying the zf from him considering the condition of the master and slave.
