Getrag vs. Isuzu w/ Impulse Diff. - Transmission Forum
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I have a 97 Sunfire with a 2.2 and 5 speed. The poor old isuzu is soon going to die on me, and I'm not sure on what I should do when she fails. Which would I be better off doing, swapping a Getrag into my car, or pulling the isuzu apart and installing the diff and/or gears from an Isuzu Impulse into it?
i am currently in the process of installing a hm282 ( only because im broke and already had one),but personly would recomend changing to the getrag transmission, overall stronger and easier to find than isuzu spec tranny's
Not Really, shouldn't be too hard to snag an impulse tranny out of a scrap yard somewhere. Probably cheaper to buy the impulse diff from the dealer than find a Getrag as well. Also, if I install the isuzu diff, no effing around changing the tranny mounts.
true which is a plus...but i wasnt able to source a isuzu tranny ( mind you i didn't really try all to hard). but i figured they wouldnt be all to common nowdays
Get the whole tranny from a yard, swap the gearing. You'll also get the benifit of stronger syncro's. The GM ones are made to shift a bit more smoothly, but they dont take too well to being slammed on.
SHOoff, get the complete impulse tranny? Is there a certain tranny or were all manual impulse trannies the same? All the gears can be swapped out? I thought it was just the diff that could be changed, but if I can swap all the gears it would be that much better.
Fix your Isuzu. I find it to be a much better trans than the newer Getrags.
i tried putting the impulse 3rd and 4th into my isuzu and it didn't work....
You can't just stick the 3/4 shaft in, it has to be pressed apart and swapped.
O noes!
all i know is my mechanics try to put them in my isuzu and it didn't works. The 2.2 one did work tho.
check this thread
Michael Antle wrote:Not Really, shouldn't be too hard to snag an impulse tranny out of a scrap yard somewhere. Probably cheaper to buy the impulse diff from the dealer than find a Getrag as well. Also, if I install the isuzu diff, no effing around changing the tranny mounts.
If that was your response to his advice then why did you even ask if you should swap to a getrag? You seem to have your mind set.
Also the 1994 NVG T-550 Getrag trans will bolt up, no modifications to the mounts. Superior transmission in every way. It's also about 1/3 the price, even at yards.
If you're hell bent on keeping the ish!tzu in there then go get the better diff from the storm/impulse and put it into your sloppy isuzu transmission and call it a day.
-Chris-
-Sweetness-
-Turbocharged-
Slowly but surely may some day win this race...
I'm not hell bent on anything. I'd just like some opinions from people who have both done the impulse part swaps and the getrag swap to see which one would be better. I hate my isuzu, the getrag in my parts car used to be perfect.
How's the 1994 Getrag for being notchy and/or sloppy? Is it a better tranny than the getrag or not?
i did the gears swap with the bigger diff swap too from the impulse. but now i'm getting the NVG instead. the reason is that the isuzu cant take the 7500rpm shift, the NVG will.
Is there any way I can start a poll? What's a better tranny set-up for me? (must handle 250hp)
A) Isuzu with Impulse parts.
B) NVG T-550
C) 2000+ Getrag
SweetnessGT wrote:Michael Antle wrote:Not Really, shouldn't be too hard to snag an impulse tranny out of a scrap yard somewhere. Probably cheaper to buy the impulse diff from the dealer than find a Getrag as well. Also, if I install the isuzu diff, no effing around changing the tranny mounts.
If that was your response to his advice then why did you even ask if you should swap to a getrag? You seem to have your mind set.
Also the 1994 NVG T-550 Getrag trans will bolt up, no modifications to the mounts. Superior transmission in every way. It's also about 1/3 the price, even at yards.
If you're hell bent on keeping the ish!tzu in there then go get the better diff from the storm/impulse and put it into your sloppy isuzu transmission and call it a day.
-Chris-
How well does the older NVG feel when shifting compared to the newer getrag? I don't want it to feel like my i@!#$zu feels when shifting.
My Isuzu has a far superior shift feel than my new style Getrag. As far as im concerned the newer Getrag is a pile of crap. The older style Getrag and NVG will have a similar feel to your Isuzu since they use the same style shifter and cable set up.
The isuzu Sucks in stock form. Not sure what yours would be like with the impulse internals but the stocker sucks. The getrag rocked in comparison to the isuzu.
Yeah my Isuzu has a very firm and positive shift feel with its almost 90K mile shifter and cables yet my 4k mile shifter and cables are sloppy and and suck with the Getrag. I guess if you prefer a sloppy shifter the Getrag is the way to go.
Quote:
i tried putting the impulse 3rd and 4th into my isuzu and it didn't work....
My friend got the impulse 3rd and 4th to work in his Isuzu. The 4.11's from the same tranny are also working in my tranny with a Isuzu diff from a 90 Sunbird ( Thanks Colin )
Quote:
My Isuzu has a far superior shift feel than my new style Getrag. As far as im concerned the newer Getrag is a pile of crap. The older style Getrag and NVG will have a similar feel to your Isuzu since they use the same style shifter and cable set up.
I think is the first time I have ever heard anyone say that the Isuzu has anything superior to the Getrag
Jason
99 Z24 Supercharged
157hp/171tq - NA
LD9 for Life
I hate my Getrag. When my Isuzu died at 83K miles in my 98 Z24 I ordered a new one from the dealer. Put it in and couldnt be happier. I could have done the Getrag swap for probably half the cost (or maybe even less than that) but I prefer the Isuzu. I get an average of 10K miles out of the Getrags in my 02 Z24. yes i beat on them but its the same parts that fail every time and even when I drove my Isuzu that way those same parts held up. My Isuzu also weighs less and has different gearing than the Getrag. Makes the car more fun to drive. Not sure why everyone hates the Isuzu so much, but being an owner of both at the same time I have to defend the Isuzu. To me it has fewer faults and more pluses that the Getrag.
I think everyone hated the tranny because of the diff breaks.
I am on my 3rd Isuzu so far. I broke the diff in the original tranny @ 60k. The local shop replaced it with one that only lasted 5k. I pulled that one out myself and rebuilt it better parts and new syncros and bearings. This one has done well for me the last 8k so far and doesn't seem to mind the occassional 7k shifts. I don't think I like 1st and 2nd gear now as first gear is a waste now with the supercharger. It will be coming apart again to have SOHC impulse 1st and 2nd gears and a Quaife ( if I can find one ) put in.
Jason
99 Z24 Supercharged
157hp/171tq - NA
LD9 for Life
Isuzu #2 since the car was new. I took out the diff. and admit that it was my fault it died. New trans and Im set for another 80K+.
OK, so exactly what tranny would I need to get that will bolt up without modifying anything and what cars did those trannies come in. I want the older tranny because of the easier install and can still hold with lots of power. I'll have to change over to the 3.1 clutch and flywheel wouldn't I? What about axles and stuff? My cars a 97 sunfire SE. BTW My Getrag was never sloppy.
Between my 98 and 2000 cars, the Getrag is a better feel. I also had a 93 Storm GSI, with the isuzu obviously, and the feel was a little better than the 98 isuzu. I think people just get used to what they have. However both cars have close to the same mileage and the Getrag feels a tiny bit more refined.
Spark*
I rebuilt my '96 Isuzu for my Sunfire. I put the 3rd Member Ass'y out of a '93 GEO Storm in it. It was machined gears instead of the cast ones. Much stronger and tighter. I also put a LSD Unit in it. This is behind a '99 Pontiac 3800SC. So far it's taking the punishment I'm dishing out. I'm more worried about the CV Shafts than the tranny.
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