Skip to main content
Topic: This is not a Chevy forum but... (Read 1108 times) previous topic - next topic

This is not a Chevy forum but...

What is the 4 + 3 manual transmission in some model corvette years ?!?!?!?! i never heard anything of that !
1985 Mercury Cougar V6
1989 F-200 V8
1996 Explorer V6
2001 F-150

This is not a Chevy forum but...

Reply #1
What year are you thinking about? Ive never heard about the 4+3
It's Gumby's fault.

 

This is not a Chevy forum but...

Reply #2
Is that something like, where each seperate gear has an overdrive. Like 1, 1od, 2, 2od, etc.
"Real cars dont power the front wheels, they lift them"
[SIGPIC][/SIGPIC]
1984 Mercury Cougar GS 5.0:cougarsmily: BBK Equal Length Shorties, BBK O/R X-Pipe, Magnaflow Magnapacks, Mustang GT Stainless Tailpipes, 18" Magnaflow Rolled Edge Tips. Turbo Coupe Hood, Mach 1 Chin Spoiler. 17"x9" Cobra R's, Falken Ziex 255/50s, and 245/45s.
1984 Ford Thunderbird 3.8L "Drag Queen"
2009 Dodge Ram 1500 Lone Star Edition 5.7L Hemi 400hp, lex DOD14M Magnaflow retro-fit ler kit

This is not a Chevy forum but...

Reply #3
Just like Cougrrr302 said, except there was no 1od: It's a four speed tranny with an additional overdrive unit tacked on. Overdrive is accessible in 2nd, 3rd and 4th gears, hence the "4+3"
2015 Mustang GT Premium - 5.0, 6-speed, Guard Green - too much awesome for one car

1988 5.0 Thunderbird :birdsmily: SOLD SEPT 11 2010: TC front clip/hood ♣ Body & paint completed Oct 2007 ♣ 3.55 TC rear end and front brakes ♣ TC interior ♣ CHE rear control arms (adjustable lowers) ♣ 2001 Bullitt springs ♣ Energy suspension poly busings ♣ Kenne Brown subframe connectors ♣ CWE engine mounts ♣ Thundercat sequential turn signals ♣ Explorer overhead console (temp/compass display) ♣ 2.25" off-road dual exhaust ♣ T-5 transmission swap completed Jan 2009 ♣

This is not a Chevy forum but...

Reply #4
ive heard of them and im pretty sure my friend has this trans in his 82 vette if that helps narrow down your search.

This is not a Chevy forum but...

Reply #5
Another intresting fact..  No Corvette ever came with a 5 speed.  either 4 speed,  4 + 3, then 6
One 88

This is not a Chevy forum but...

Reply #6
You could sorta make one for yourself if you got a 4-speed plus a gear splitter. (of course, it would then be a 4+4) I've thought about that possibility. I've found a few different gear splitters.. even one that mounted between the bellhousing and the main transmission on some truck 4-speeds. There was one truck 4-speed I found.. T18 or 19, I think.. that had some pretty sick first-gear ratios available.. (we're talking like 6:1) but I have no idea if they'd even fit in one of these, with or without serious modifications.

I was really hot to use a splitter for awhile.. now I have other possible plans. They're pretty expensive little units. ($2000-3000, if I recall)

This is not a Chevy forum but...

Reply #7
that they're expensive as heck is one thing, but a t-19 would not fit under a 'Bird without some big ole dents in the tunnel...
They mainly came under 4x4 trucks and stuff.
I guess they put the mazda 5 speed that the f-150 got in the '90s, but I don't see how it woulda fit...??
'98 Explorer 5.0
'20 Malibu (I know, Chevy, but, 35MPG. Let's go brandon, eh)

This is not a Chevy forum but...

Reply #8
I have a t-18 I think in my dads van,(just got rid of a extra one too) And it looks smaller then a t-5. Its definetly smaller then an AOD.
Quote from: jcassity
I honestly dont think you could exceed the cost of a new car buy installing new *stock* parts everywhere in your coug our tbird. Its just plain impossible. You could revamp the entire drivetrain/engine/suspenstion and still come out ahead.
Hooligans! 
1988 Crown Vic wagon. 120K California car. Wifes grocery getter. (junked)
1987 Ford Thunderbird LX. 5.0. s.o., sn-95 t-5 and an f-150 clutch. Driven daily and going strong.
1986 cougar.
lilsammywasapunkrocker@yahoo.com