ratios - Third Generation F-Body Message Boards

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1985, 1990, 86, camaro, car, codes, corvette, decode, gear, iroc, irocz, location, options, ratios, rpo, z5v

What is the RPO code Z5V on my 1985 1C5 IROC?

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1 2 3 4)

yo soy el warg on Dec 5, 2007

Jul 28, 2025 01:39 PM
by topduarte

162

76,043

History / Originality

200, 200r4, 350, 700r4, difference, lockup, metric, metro, miles, ratios, rebuild, shift, th200r4, th250, thm200c, trans, transmission, turbo

Transmission TH200R4

fbody-tom on Aug 23, 2005

Jun 14, 2025 06:51 PM
by Airwolfe

42

11,434

Transmissions and Drivetrain

1978, 273, 350, automatic, body, cable, camaro, differance, equipped, gear, gen, manual, ratio, ratios, rear, speedometer, stock, t5, trans

2.73 with T5 Transmission drivability

(

1 2)

85Irocbuild on Nov 25, 2013

Jun 4, 2025 10:26 AM
by Fullmonte77

50

13,635

Transmissions and Drivetrain

3rd, 3rdgen, 4th, camaro, diff, diffential, differential, gear, gen, generation, posi, ratio, ratios, series, torsen, trans

4th gen posi diff in a 3rd gen housing

rocn7roc on Oct 11, 2013

Mar 19, 2024 10:37 AM
by sofakingdom

13

5,383

Transmissions and Drivetrain

1987, 87, 89, differential, end, gear, gears, iroc, irocz28, posi, ratio, ratios, rear, slip, stock

gear ratio and posi on '87 iroc?

CamaroRS385hp on Aug 27, 2003

Mar 8, 2023 09:22 PM
by scottmoyer

8

13,258

History / Originality

1992, 3rd, 89, camaro, custom, dimensions, dse, gen, pinion, power, rack, ratios, steering, thunderbird, trans

Power Rack & Pinion... Almost There

89_RS on Apr 2, 2011

Feb 7, 2023 05:43 PM
by Tombowman89

42

19,090

Suspension and Chassis

700r, 82, 91, 9780387, calc, calculator, car, driven, gear, gears, ratios, speedometer, trans, transmission, wwwshiftritetransmissionscom

Important/Useful :

Sticky: 700R-4 speedometer gears

Atilla the Fun on Jun 1, 2009

May 10, 2022 10:14 PM
by Chevy86 IROC-Z

47

46,653

Transmissions and Drivetrain

2nd, 454, 4l80e, body, conversion, conversions, downshift, gear, low, overdrive, ratios, set, speed, transmission, valve

6 speed 4L80E

oldred95 on Aug 5, 2008

Mar 19, 2020 03:03 PM
by ULTM8Z

14

22,403

Transmissions and Drivetrain

6l80, 6l80e, auto, camaro, engine, engines, fit, g8, gear, gen, gencamaro, gm, gt, mount, ratios, to, trans, transmission, v8

Did someone fit an 6L80e into a '91 Z28?

vikinginz28 on Aug 11, 2012

Jan 19, 2020 01:07 PM
by kestell123

13

19,973

Transmissions and Drivetrain

4th, body, camaro, cup, gear, gen, gto, housing, mn12, ratios, shift, shifter, t56, tailshaft, thirdgen, transmission

using a gto t56 in a f body

ls6iroc on Apr 18, 2011

Jan 25, 2018 01:47 PM
by ShiftyCapone

7

15,909

LTX and LSX

Changing T5's 5th Gear Ratio...

luvofjah on Aug 14, 2014

Sep 8, 2014 08:18 PM
by DIGGLER

12

8,774

Transmissions and Drivetrain

Steering box ratio???

IndyGabe7 on Feb 18, 2014

Feb 21, 2014 04:41 PM
by IndyGabe7

3

1,621

Suspension and Chassis

15, 16, arms, calculate, changing, exhaust, exhuast, intake, make, ratio, ratios, rocker, rockers, sound, t0

1.5 VS 1.6 Ratio Rockers Questions

Gen3FTW on Jan 17, 2011

Dec 6, 2013 09:53 AM
by kad5118

12

20,811

Tech / General Engine

10243880, 191, casting, compression, heads, number, ratio, ratios, vortec

Engine Compression Ratio / Performance

maxjivi05 on Sep 15, 2013

Sep 30, 2013 10:47 PM
by cuisinartvette

4

2,115

Tech / General Engine

10, 16, camaro, drive, gear, metal, ratios, t5, teeth, transmission

Where can I get the correct T5 driven gears? Need a 20 tooth...

Corellian Vette on Jul 21, 2013

Jul 22, 2013 04:25 PM
by Corellian Vette

6

751

Transmissions and Drivetrain

323, 373, aftermarket, cheap, gear, gears, highway, m29, ratios, rpm, t5, t56, tremec

T56 Gear mods??.

1gary on Jun 10, 2013

Jun 12, 2013 06:50 AM
by sofakingdom

10

2,344

Transmissions and Drivetrain

1989, 84, 86, camaro, distinguishing, fbody, firebird, gear, gen, ratio, ratios, t5, tranny, trans, ws6

T5 Gear Ratios

seanof30306 on Jul 9, 2006

Feb 12, 2013 05:54 PM
by KG427KG427

7

29,503

Transmissions and Drivetrain

1994, 6spd, 91, 92, camaro, expensive, fourth, gear, gen, gtos, ls1, put, ratios, sale, speed, trans, transmission

difference in 4th gen 6 speed transmissions ?

bungy74 on Oct 19, 2012

Nov 22, 2012 06:43 PM
by 513camarors91

24

6,056

LTX and LSX

17x11, 1988, 1989, 3rd, 89, autocrossing, firebird, formula, gen, loose, pontiac, ratios, shaft, speed, v8

1989 Pontiac Formula V8 5 speed Autocross

ccnthirdgen on Oct 12, 2012

Oct 12, 2012 03:32 PM
by ccnthirdgen

0

1,557

Firebirds for Sale

1992, 57, 82, camaro, coupe, end, factory, gear, list, ratio, ratios, rear, sizes, sport, stock, z28

factory gear ratio

sportcoupe-z28 on Sep 2, 2012

Sep 8, 2012 07:12 AM
by Atilla the Fun

4

17,561

Transmissions and Drivetrain

120, 327, 373, 410, 60, camaro, gear, gears, mph, ration, ratios, rpm, rps, t56, thirdgen, transmission

What rear gear with a t56?

cobrakiller1989 on Aug 18, 2012

Aug 23, 2012 11:26 PM
by oamhmad

17

17,718

Transmissions and Drivetrain

1992, 305, 350, 91, b4c, body, camaro, firebird, mumbers, prodution, ratio, ratios, spd, speed, top

91-92 B4C ratio of 305/5 speed v. 350/auto cars

HI85WH1 on Aug 9, 2012

Aug 9, 2012 11:13 PM
by HI85WH1

7

1,057

History / Originality

1990, 1993, 305, 92, bolt, camaro, clutch, gear, gen, identification, putting, ratios, swap, t56, tranny

T56 on a 305?

Ghasoline on Jul 11, 2012

Jul 21, 2012 10:13 AM
by danielsan

24

14,001

Transmissions and Drivetrain

Gear ratio

Shane4524 on Jul 11, 2012

Jul 12, 2012 06:40 AM
by JamesC

5

680

Transmissions and Drivetrain

1992, 308, 342, 3rd, camaro, end, facts, g80, gear, gearing, gen, gu6, junkyard, posi, ratios, rear

Switching gear ratio from 3.08 to 3.42

88camarofreak on Jun 17, 2012

Jun 17, 2012 10:37 PM
by 88camarofreak

3

2,900

Transmissions and Drivetrain

275, axle, camaro, code, g92, gear, gm, iroc, m39, mk6, ratio, ratios, specs, t5, transmission

MK6 vs M39 1st gear ratios?

chazman on May 3, 2012

May 4, 2012 01:36 PM
by jmd

10

2,434

Transmissions and Drivetrain

9 bolt gear ratio

greg9187 on Apr 30, 2012

Apr 30, 2012 08:00 PM
by sofakingdom

1

753

Transmissions and Drivetrain

1992, 90s, 92, body, camaro, end, forums, gears, ratios, rear, rs, transmissions, upgrade

1992 Camaro RS

Frank Telli on Apr 20, 2012

Apr 20, 2012 12:58 PM
by Frank Telli

2

711

Transmissions and Drivetrain

2011, 342, calibration, camaro, change, end, gear, options, ratio, ratios, rear, reluctor, rings, speedo, swap, t5, transmission

Gear Gear Ratio Change, Electronic Speedo, Options?

twigger on Jan 25, 2012

Feb 17, 2012 05:49 PM
by Tuned Performance

23

8,243

Transmissions and Drivetrain

1991, 200, 3rd, 700r4, camaro, dimensions, dipstick, metric, physical, problems, ratios, rs, th200, to700r4, transmission, transmissions, work

TH 200 and 700R4??

t-top havoc on Feb 11, 2012

Feb 11, 2012 12:36 PM
by t-top havoc

3

1,761

Transmissions and Drivetrain

b4c, camaro, codes, gear, hawaii, identification, identify, identifying, idinafi, indentify, locations, ratio, ratios, t56, tranny, transmission

HELP identifying T56 transmission

HI85WH1 on Feb 2, 2012

Feb 2, 2012 03:28 PM
by HI85WH1

3

9,806

Transmissions and Drivetrain

83, arm, facts, gear, houston, muncie, ratios, saginaw, sale, spd, speed, swap, t56, thirdgen, torque, transmission, tx

t56 or muncie 4?

hasnoname on Dec 20, 2011

Dec 29, 2011 11:04 AM
by brandon406sbc

23

14,671

Transmissions and Drivetrain

14, 373, 411, 775, borg, calculator, cars, gear, gen, good, mile, ratio, ratios, street, warner

3.42 or 3.73?

red rock on Apr 13, 2010

Nov 30, 2011 03:46 PM
by red rock

36

16,636

Transmissions and Drivetrain

1st, 288, 308, 342, borg, borgwarner, camaro, change, gear, ratios, speed, super, t10, trans, warner

3.42 1st gear & 3.08 diff???

Sarkee on Nov 1, 2011

Nov 2, 2011 01:30 AM
by jmd

1

1,876

Transmissions and Drivetrain

5th, 63, 80, camaro, gear, nwc, ratio, ratios, speed, t5, top, tranny, trans

What 5th gear ratio do i have?

LostX on Oct 21, 2011

Oct 21, 2011 01:44 PM
by LostX

0

647

Transmissions and Drivetrain

1990, gear, gen, iroc, ratio, ratios, therd

1990 iroc-z

KG427KG427 on Oct 19, 2011

Oct 19, 2011 11:25 PM
by KG427KG427

0

491

Southern California Area

1983, 1993, gear, m29, ratio, ratios, sale, speed, t56, transmission, wide, z28

[DE]

1993 Z28 T56 Wide Ratio Transmission

KO1 on Oct 5, 2011

Oct 9, 2011 08:25 AM
by KO1

4

794

Engine/Drivetrain/Suspension Parts for Sale

114, 3rd, axle, camaro, determine, drive, end, fbody, gear, gen, ratio, ratios, rear, shaft, thirdgen, turns

Rear end ratio

rkg8554 on May 1, 2011

May 8, 2011 09:33 AM
by jh_shady01

12

843

Transmissions and Drivetrain

3rd, 4rth, 4t, 4th, 4thgen, camaro, differences, end, fbody, gen, id, pics, ratio, ratios, real, rear

4th gen rearend difference

kyrenegade on May 1, 2011

May 2, 2011 03:27 PM
by kyrenegade

5

1,417

Transmissions and Drivetrain

1989, 411, auburn, camaro, cost, diff, differential, gear, lincolnton, nc, pinion, posi, ratios, rebuild, rebuilding, repair, ring, thirdgen

is it possible to rebuild a posi diff?

2QUIK4U on Apr 19, 2011

Apr 19, 2011 11:51 PM
by 2QUIK4U

5

2,093

Transmissions and Drivetrain

2257015, 3rd, aspect, camaro, cary, gen, put, ratios, tire

Tire Aspect Question

Rescue Wagon on Mar 30, 2011

Apr 2, 2011 06:05 AM
by eseibel67

5

766

Wheels and Tires

10, 10bolt, 3rd, 410, 411, 4th, axle, bolt, camaro, car, gear, gears, gen, hold, make, ratios, ten

can a 10 bolt hold up?

racerx520 on Mar 22, 2011

Mar 24, 2011 08:50 PM
by blackbmagic

21

2,186

Transmissions and Drivetrain

1991, 50, 91, auto, automatic, camaro, end, gear, overdrive, ratio, ratios, rear, rearend, transmission, z28

rear end gear ratio question

ultra91 on Feb 16, 2011

Feb 16, 2011 12:30 PM
by 84 z28

1

1,071

Transmissions and Drivetrain

144, 75, 9302, 99, bolt, camaro, end, gear, gearsgm, gm, ratios, rear, ring, stock, ten, weiand

What rear ends came in what year???

86LT1 on Mar 19, 2009

Feb 3, 2011 05:49 PM
by big gear head

13

8,902

Transmissions and Drivetrain

26, 34, 82, 93, 94, 97, bellhousing, camaro, fit, ratio, ratios, spline, splinethirdgen, t5, transmission, v6, v8

T5 from camaro 93-97 26 spline

mooch1 on Jan 27, 2011

Feb 1, 2011 08:41 AM
by mooch1

18

12,784

Transmissions and Drivetrain

1988, 277, 373, 3rd, 410, 455, fbody, final, gear, gen, iroc, ratio, ratios, speed, ultimate, whats

Poll

What is the ultimate gear ratio?

sam85iroc on Dec 6, 2010

Dec 6, 2010 08:20 PM
by AlkyIROC

6

1,423

Transmissions and Drivetrain

10, 1984, 1987, 700r4, 88, axle, bolt, camaro, chevrolet, end, gear, ratio, ratios, rear, specifications, trans

Help with rear end and gear ratios

Grizzlybear226 on Oct 28, 2010

Oct 31, 2010 06:27 PM
by JamesC

9

4,108

Transmissions and Drivetrain

1994, 4th, 98, camaro, end, gear, gen, httpthirdgencamaro105wheelsfitwith4thgenrearend, narrow, og, posi, ratios, rear, rearend, strength, z28

4th gen rear end questions

89chevycamaroRS on Sep 13, 2010

Oct 7, 2010 12:18 PM
by JamesC

27

1,308

Transmissions and Drivetrain

202, 305, 350, 601, 88, 92, camaro, ci, compression, heads, put, ratios, size, stock, valves

305 heads on a 350??

jeepboy180 on Apr 6, 2008

Sep 29, 2010 09:40 PM
by SeriousGearhead

16

18,876

Engine Swap

100, 89, air, boost, charged, engine, f1z, fuel, iroc, pro, procharger, psi, ratio, ratios, turbo

Air/Fuel Ratio on Procharged engine

Proiroc on Apr 11, 2010

Sep 21, 2010 12:34 AM
by gta324

25

14,451

Power Adders

Threads Tagged with ratios