I would like this thread to compile a list of confirmed 1st 2nd 3rd 4th and 5th gear ratios of the FWD getrags from 88 on up to 93. I have been getting conflicting info from different sources on the net. Pleas if anybody knows for sure, list them, thanks

I have seen the following confirmed on various forums by people trying to solve this problem as well.

All V6 GETRAG 282s had the following ratios, regardless of application and year:
1st: 3.50
2nd: 2.05
3rd: 1.38
4th: 0.94
5th: 0.72
FDR: 3.61

A member of 60degreev6.com recently took a W-body V6 GETRAG 282 and confirmed that the above gear ratios are what were used. It was originally assumed that they had a shorter 1st gear.


I have personally confirmed that a 1990 Olds Cutlass Calai Quad-4 HO GETRAG 282 has the following ratios:
1st: 3.50
2nd: 2.19
3rd: 1.38
4th: 1.03
5th: 0.80
FDR: 3.61

quote Originally posted by Steven Snyder: I have seen the following confirmed on various forums by people trying to solve this problem as well. All V6 GETRAG 282s had the following ratios, regardless of application and year: 1st: 3.50 2nd: 2.05 3rd: 1.38 4th: 0.94 5th: 0.72 FDR: 3.61 A member of 60degreev6.com recently took a W-body V6 GETRAG 282 and confirmed that the above gear ratios are what were used. It was originally assumed that they had a shorter 1st gear. I have personally confirmed that a 1990 Olds Cutlass Calai Quad-4 HO GETRAG 282 has the following ratios: 1st: 3.50 2nd: 2.19 3rd: 1.38 4th: 1.03 5th: 0.80 FDR: 3.61

thanks Steven ..I have seen 5th on the quad 4 being reported with the either ratio .80 and .72. Also one report concours with you with the 1990 Quad 4 has been reported as having


1st 3.50
2nd 2.19
3rd 1.38
4th 1.03
5th 0.81
Axle 3.61

I just bought a New Venture Quad 4 with the 3.94 final and it is not clear what 1st 4th or 5th
although one reports it as having
1992-1994 Quad 4

1st 3.50
2nd 2.05
3rd 1.38
4th 1.03
5th 0.72
Axle 3.94


I guess I will find out tomorrow when it arrives and I split the case

[This message has been edited by Erik (edited 04-03-2008).]

I bought one from e-bay, looks to fit 93-94 Quad 4. I measured the ratios as

3.5
2.18
1.38
1.03
.8

3.94.

Looked good, I bought another for a spare.

Mike

quote Originally posted by fast40driver: I bought one from e-bay, looks to fit 93-94 Quad 4. I measured the ratios as 3.5 2.18 1.38 1.03 .8 3.94. Looked good, I bought another for a spare. Mike

hmmm..I like 2nd ratio but was hoping it would be .72 5th .

I can't remember what led me to believe it, but I am pretty sure that my W-body 2.8 Getrag 282 had a 3.77 first. I can't remember if that was from spinning the input shaft with the trans out or watching mph/rpm. I sold the car about a year ago so the memories are getting fuzzy.

I really really wouldn't mind having it back.

Third gear is always 1.38 it is the only third gear ratio available.
it is paired with the fourth gear ratio, so they interchange as a pair. But 4th could be either of two choices,
Either its .94 or 1.03
Fifth gear is either 0.72 or 0.81, both the gears press on so they are easy to change.

Your input shaft determines your first and second gears, three versions are available

found in many quad 4's from 91, possibly more years? 3.61 FDR
3.77 first
2.19 second
1.38 third
1.03 fourth
0.81 fifth

I found this in a 93 Achieva SCX W41 with the 3.94 FDR, that badly needs synchros.
3.50 first
2.05 second
1.38 third
1.03 fourth
0.72 fifth

Found in earlier quad 4's 88-89 90 too? (unconfirmed on the years) 3.61 FDR
3.50 first
2.19 second
1.38 third
1.03 fourth
0.81 fifth

Found in Fiero's and all other V6 apps of the 282. 3.61 FDR
3.50 first
2.05 second
1.38 third
0.94 fourth
0.72 fifth

Personally I HIGHLY reccomend the 1.03 fourth gear on the V6 282, using the newer differential from the quad 4's or newer V6's. It makes a perfect passing gear.
I currently am running the 3.77/2.19 input shaft, with the 1.03 fourth and the .72 fifth. 1st and 2nd are a bit short and Its a little too big a gap between 2nd and 3rd. But 3rd and 4th are just right. I would love to go back to the 3.50/2.05 first and second.

[This message has been edited by Fierobsessed (edited 04-04-2008).]

I typically use a Getrag from a 1988 Baretta due to the price ease of locating. My last four transmissions for my V8 had a useless first gear and would ony get me up to about 10mph before it peaked. My current Getrag takes first up to 35mph. What gives?
Dave

------------------

1987 GT (my toy-see above), 1987 GT (wife's toy), 1986 SE soon to be VR6, certified master technician/shop owner
www.njautobahn.com

[This message has been edited by bmwguru (edited 04-04-2008).]

quote Originally posted by Erik: I would like this thread to compile a list of confirmed 1st 2nd 3rd 4th and 5th gear ratios of the FWD getrags from 88 on up to 93. I have been getting conflicting info from different sources on the net. Pleas if anybody knows for sure, list them, thanks

Where have you been seeing conflicting info?

I just got my trans too. While the overall trans is geared shorter, I don't think I will mind too much. I am really looking forward to the new 4th gear ratio. I was plotting some vehicle speed curves and this looks like a nice improvement. I think I may swap out 5th gear to the 0.72, but keep the 3.94 final drive.

------------------
62 Buick Special
86 GT, 5-Speed
87 GT, 3.4l DOHC Turbo 415 WHP, 11.9 @ 118
88 Toyota Supra Turbo

quote Originally posted by Matt Hawkins: I just got my trans too. While the overall trans is geared shorter, I don't think I will mind too much. I am really looking forward to the new 4th gear ratio. I was plotting some vehicle speed curves and this looks like a nice improvement. I think I may swap out 5th gear to the 0.72, but keep the 3.94 final drive.

I was thinking of doing the same thing. I'm a bit torn on keeping the 3.94 with the (in progress) Northstar, but since the car won't be a daily driver I think it might be worth the increased cruising RPMs and virtually pointless 1st gear for the 2-3-4+3.94 combo. Are you planning on swapping bellhousings and using Rodney Dickman's FWD adapter, or are you going to transfer the gear clusters/diff into your Fiero case? That's another one I'm up in the air on, but I'm leaning towards the former (swap bellhousings and fwd adapter). Using as much of the new stuff as possible seems to be the better of the two options.

Bryce

quote Originally posted by Nashco: I was thinking of doing the same thing. I'm a bit torn on keeping the 3.94 with the (in progress) Northstar, but since the car won't be a daily driver I think it might be worth the increased cruising RPMs and virtually pointless 1st gear for the 2-3-4+3.94 combo. Are you planning on swapping bellhousings and using Rodney Dickman's FWD adapter, or are you going to transfer the gear clusters/diff into your Fiero case? That's another one I'm up in the air on, but I'm leaning towards the former (swap bellhousings and fwd adapter). Using as much of the new stuff as possible seems to be the better of the two options. Bryce

You should be able to swap in a Fiero bell housing and use all the Fiero shift hardware. It won't require a Rodney kit if you already have a Fiero version.

quote Originally posted by Fierobsessed: I currently am running the 3.77/2.19 input shaft, with the 1.03 fourth and the .72 fifth. 1st and 2nd are a bit short and Its a little too big a gap between 2nd and 3rd. But 3rd and 4th are just right. I would love to go back to the 3.50/2.05 first and second.

I think I am going to swap 5th if in fact the trans has the .80. I just hope the used v6 getrag has a good 5th gear that isnt worn out. I should be able to use the syncro for 5th off the newer trans correct?
Where did you get the 3.77 1st from? a W body? That seems to be in question on the net whether they came with the 3.77 1st as well.

quote Originally posted by Matt Hawkins: You should be able to swap in a Fiero bell housing and use all the Fiero shift hardware. It won't require a Rodney kit if you already have a Fiero version.

By shift hardware, you mean the shift shaft and everything? My understanding is that the shift shaft on the quad 4 and FWD Getrags is shorter, so you can't put the Fiero levers on them, thus the need for Rodney's shift lever kit. I suppose I could swap out the shift shaft from the Fiero, I haven't seen anybody specifically say that you can or can't (if the parts are compatible or not). One would reason that you can probably replace the shorter FWD shaft with the Fiero shaft, but logic doesn't always win on stuff like that. Have you actually swapped the shift shaft or seen somebody who had to know if it will work?

Bryce

I will take a look at the new transmission versus one of my busted Fiero jobs. I was under the impression that the only differences were the mounting locations for the cables. The bosses are cast into the Q4 and FWD V6 bellhousings. Maybe someone else here know, but I will verify tonight.

quote Originally posted by Matt Hawkins: I will take a look at the new transmission versus one of my busted Fiero jobs. I was under the impression that the only differences were the mounting locations for the cables. The bosses are cast into the Q4 and FWD V6 bellhousings. Maybe someone else here know, but I will verify tonight.

I also got my NV trans this morning. Please do. I would like to know. I will disassemble mine today as well and post some pics

hmmm ..with the 3.77 1st with a 14.85 total ratio behind a 3.94 FD, ..3.61 FD isn't sounding so bad ..what would you do with the trans?

Well that is a bit disappointing. I guess if I am replacing more than just 5th gear. I will have the measurements of the Fiero getrag in the morning.

quote Originally posted by Matt Hawkins: Well that is a bit disappointing. I guess if I am replacing more than just 5th gear. I will have the measurements of the Fiero getrag in the morning.

Were you planning on using the 4DFF with the 3.4 DOHC?? The trans is beautiful inside , all brand new ..its such a shame it has a stump pulling 1st gear. No matter how I can see it, its going to be a bit of work to change the gearing to suit my needs.

On one hand, I'd like the use 3.61 FD with all the Q4 gears except 5th.
One the other hand, use the 3.94 FD with the Fiero or FWD v6 getrag 1st and 5th gear and the Q4 2nd and 4th.

What do you think would be the best solution?

Finally, I think the cheap cost for a new trans with a heavy duty diff and 3.94 grs is worth it still though

[This message has been edited by Erik (edited 04-04-2008).]

I am going to use:

3.50 - 1st
2.05 - 2nd
1.38 - 3rd
1.04 - 4th
0.72 - 5th

3.94 final drive.

I have an excel spread sheet you can put in the values and look at the speed curves. PM me your e-mail if interested.

quote Originally posted by Erik: [QUOTE]Originally posted by Fierobsessed: I currently am running the 3.77/2.19 input shaft, with the 1.03 fourth and the .72 fifth. 1st and 2nd are a bit short and Its a little too big a gap between 2nd and 3rd. But 3rd and 4th are just right. I would love to go back to the 3.50/2.05 first and second.

Are you using the 3.94 FD ??
[/QUOTE]

No way. Im not crazy.

FYI, the 3.94 with the taller gears, and the 3.61 with the shorter gears, first and fifth are about the same, except 2, 3 and 4 are shorter.

quote Originally posted by Fierobsessed: No way. Im not crazy.

so basically your wanting to run the Fiero gearing with the Q4 4th and Fiero FD with a DOHC, no ?

Exactly. I still have to break in my engine and clutch before I can really say weather I like the 3.77/2.19 setup.
I have had this transmission behind a 3.4 PR motor for a couple years, and have formulated my opinions based on that engine, not so much the 3.4 DOHC yet. But I still think the 2nd to 3rd drop is a bit too much after the few miles that I have put on the engine.

quote Originally posted by Steven Snyder: I have seen the following confirmed on various forums by people trying to solve this problem as well. All V6 GETRAG 282s had the following ratios, regardless of application and year: 1st: 3.50 2nd: 2.05 3rd: 1.38 4th: 0.94 5th: 0.72 FDR: 3.61 A member of 60degreev6.com recently took a W-body V6 GETRAG 282 and confirmed that the above gear ratios are what were used. It was originally assumed that they had a shorter 1st gear. I have personally confirmed that a 1990 Olds Cutlass Calai Quad-4 HO GETRAG 282 has the following ratios: 1st: 3.50 2nd: 2.19 3rd: 1.38 4th: 1.03 5th: 0.80 FDR: 3.61

I don't mean to argue this but I swapped in a FWD V6 getrag into my '88 GT when I hurt my original trans and my rpm at 70mph went up arox 300rpm. I pulled this trans from an '88 GT that was in a Pick-n-Pull wrecking yard but was clearly a FWD getrag and not the original trans for that car, so I have no idea what FWD car it originally came from. I did read somewhere years ago that someone though that W-body V6 getrags had a little different gear ratios so I assumed that was what I had.

quote Originally posted by Nashco: My understanding is that the shift shaft on the quad 4 and FWD Getrags is shorter, so you can't put the Fiero levers on them, thus the need for Rodney's shift lever kit.

It's the other way around. The Fiero shaft is shorter.

quote Originally posted by Will: It's the other way around. The Fiero shaft is shorter.

So will the Fiero parts work on the FWD shifter shaft?

quote Originally posted by patch: I don't mean to argue this but I swapped in a FWD V6 getrag into my '88 GT when I hurt my original trans and my rpm at 70mph went up arox 300rpm. I pulled this trans from an '88 GT that was in a Pick-n-Pull wrecking yard but was clearly a FWD getrag and not the original trans for that car, so I have no idea what FWD car it originally came from. I did read somewhere years ago that someone though that W-body V6 getrags had a little different gear ratios so I assumed that was what I had.

The 3.61/.80 5th or the 3.94/.72 5th will increase your cruise RPM at 70 (assuming 24.6" diameter tires) by 276 and 227 rpm respectively. Where this becomes really uncertain is once the tranny has been rebuilt. It is real easy for them to mix and match parts from the V6 and Q4 variants of the getrag speeds.

quote Originally posted by Matt Hawkins: So will the Fiero parts work on the FWD shifter shaft?

No. If you have a FWD transmission, either you can buy Rodney's kit, or take the collar that's pinned to the shaft that the select linkage uses to move the shaft axially, and weld it to one of the slotted washers in the stack. That will move it up to about where it needs to be to work with the Fiero linkage.

If you are splitting the case, can you swap in the Fiero shift shafts?

[This message has been edited by Matt Hawkins (edited 04-05-2008).]

Shift shaft... just one.

Yes, you can, if you're taking the shift linkage apart, and not simply splitting the case.

Then I guess that is what I will do. The gears I previously stated and the Fiero shift shaft.

quote Originally posted by Matt Hawkins: Then I guess that is what I will do. The gears I previously stated and the Fiero shift shaft.

Wish I had a Fiero shift shaft ..anybody have a junk Fiero Getrag with the shaft and shift select arm setup? BTW that speadsheet is great Matt, thanks

quote Originally posted by Erik: I also got my NV trans this morning. Please do. I would like to know. I will disassemble mine today as well and post some pics

I've had some compatibility problems with cases, my 94 Quad 4 W41 transmission did NOT have the bosses on the rear of the transmission for the select cable
However, the case half I got from a 91 Q4 HO had them, go figure.