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4:88 gears in 94 pickup

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Old 12-15-2011, 05:11 PM
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4:88 gears in 94 pickup

i am running 33' tsl radials now and looking to bump up to 4:88 over the 4:10s. first off am i going enough? im torn between them and the 5:29s. i mostly drive around a small town and hunting . all pretty short distances, no long trips or freeways. with the 4:88s, i have already bought a front houding with gears and 4:88s.

another question is where to get the gears? is there a sponsor here that has some good deals on the gears i need? again, its a 94 regualar cab 22re 5 spd with 33" tsl radials.
Old 12-15-2011, 05:25 PM
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I have the same truck as you with a 3.4 v-6, 33" tires and I just installed 4.88 ring and pinions. 5.29 are going to be really, really low and overkill in my opinion. I go up hills in fifth gear and rarely ever have to down shift. Right now I am pulling 65mph at 3000rpm. These are to much for me as I see a lot of highway driving and will be going back in the other direction, either 4.56 or 4.37. Don't cheap out on gears. I went with Yukon and was pleased with them.
Old 12-15-2011, 05:41 PM
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i was just looking on justdifferentials web site and sent them an email. i have been told 4:88, but feel like it may want more. i keep hearing it will go back close to a stock set up. for my mainly on road driving and use in the woods, the 4:88 should be better, but will i actually notice a difference over the stock 4:10? im looking to pick up lost power due to the tire change and hopefully pick up better gas mileage..really would love that being that im at 14.8 +/- generally just say 15 mpg...id love to up that along with helping out with the really slow riding in the woods hunting and scouting
Old 12-15-2011, 06:10 PM
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Oh, youll notice a 4.88 over a 4.10
Old 12-15-2011, 07:42 PM
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Make sure that your front and rear differentials match in gearing. also, are planning on installing these yourself? The reason I ask is because if you don't do it right, it can really mess things up. I had mine done by Zuk. He's a forum member. He charges $250 but does a great job.
Old 12-15-2011, 07:51 PM
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Theres a few threads on this

Ive had it both ways with 33's....4.56's, and 4.88's 4.88 is plenty low enough.
its almost to low if you do a lot of freeway. 3130 rpms @ 75.

I liked the 4.88's better for wheeling, but the 4.56's were a better choice for me , since I'm on the road the a lot. And the truck still creeeeep's of road.


P.S. The trucks I'm comparing are an 01 taco 3.4 v6 and 89 3.0 V6. Same transmission gearing and tires "at one point in time" Now the 89 has 36's and 5.29's...perfect. 5.29's would be way to low for 33's in my opinion.
Old 12-16-2011, 09:51 AM
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First of all, what engine do you have?
My truck has a 22re, 5-speed combo. Here are the wheel, diff ratio's I've run,
4.10 with 29" tires. Stock. Speedo accurate.
4.10 with 31" tires. A little sluggish. Completly bearable. Speedo a little off (3 km/h or something)
4.56 with 31" tires. Zippy! Much quicker. Fun to drive. Speedo off by 6-7 km/h. Accelerate up hills in 4th easily, almost hold in 5th.
4.56 with 33" tires. Back to stock feel, hills it would lose a lot of speed, due the extra armor and weight of the tires. Had to slip the clutch a lot when starting on a hill. Speedo accurate.
4.88 with 33". Current setup. Great combination with a tired 22re and 5-speed. Some pep, it'll hold on hills, in 4th. Lots of extra weight on my truck. ARB/winch, roll bar, full bed tool box, steel rear bumper.
Old 12-16-2011, 12:58 PM
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running a 22re with 5spd.
Old 12-16-2011, 01:28 PM
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I running 31's with 4.88's, my next tire purchase will be 32's or 33's depending on fit, probably 32's. Looking for some gas mileage on the highway.
Old 12-16-2011, 08:37 PM
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I had 4.88s and 31s as well for about 10k before i got new tires and it had tons of pep. Great on city stop/go and offroad but on the hwy was a bit high in rpms for me. Now I've got 33s and it's great still with plenty of power but less off the line. I guess it's what stock feels like - but I bought my truck with 4.10/31" combo. I'm sure 5.29/33 combo would feel similar and a 5.29/34" combo would be best of both worlds if you want power and highway mileage. If you don't do lots of driving with this truck I'd go 5.29s that way if you ever go bigger tires -you'll be ready. The 5.29/33 combo will also help correct your odometer since its been reading less than you've actually travelled for however long you've had 33s.
Old 12-17-2011, 08:53 AM
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i am running 31's on 4.88 and it feels just right
i got a 4runner 22re on automatic
Old 12-17-2011, 12:13 PM
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You already have the front 4.88 diff, just get a factory 4.88 rear third, you could be done for $100-250. It will work good w/ your setup. If you had an auto trans, I'd say maybe go for the 5.29's.
Old 12-17-2011, 04:57 PM
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ya autos need to be lower geared. Forgot to mention that. Notice the auto's all have lower gears like 4.30 or 4.56 stock.
The only thing id recommend those 5.71's for is an auto running 36+ tires.
Old 12-17-2011, 10:24 PM
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My truck's a factory-equipped 4.88, 3.0 V6 automatic truck with factory 31" tires. I've put in a K&N drop-in and Borla cat-bat exhaust (the K&N's been on the truck 11 years and the exhaust 10 years -- in salty Southern Ontario weather -- they really do last that long!). So I know no different. Side note: I messed around with a home-made short-ram style intake for a while but all it did was make noise and no noticeable extra power/economy so I put the O.E. intake back on with the K&N drop-in. The truck is just barely okay this way. Go with the 5.29s. The 22RE is plenty strong to take the extra rpms. Even on the freeway if it's spinning 100-200 rpm higher, not a huge deal. Make sure it's tuned up and free flowing.

Last edited by truckmike26; 12-18-2011 at 06:15 AM.
Old 12-18-2011, 12:39 PM
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5.29's and 33's would be way overgeared in my opinion.
4.88's and 33's with a 22re and 5-speed is great.
I swapped in a factory front diff, and swapped in a supra lsd into the rear factory 4.88 and she's GREAT.
Snow and ice are so easy in 2wd. 4wd and she's going, no matter what.
The supra lsd is straight from the junkyard and so were the 4.88's.

If you're interested in the lsd swap, check out gearinstalls.com, great info.
It took me all over maybe an hour to swap over.
Old 12-18-2011, 12:54 PM
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comparing auto's to manuals might as well be apples to oranges
5.29's and 33's on an auto sure. But not on a manual. Overkill.
Old 12-18-2011, 02:52 PM
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ive read alot about 4.88s to 5.29s the 4.88s are a great gear set and are a stronger ring an pinion than the 5.29s i have a 4 banger sasd 4.88 with 37s and im still able to pull 65 70 mph on the freeway. i get about 16 mpg so its not to bad and since youe running smaller tires your gunna love what they have to offer.
Old 12-18-2011, 06:32 PM
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I'll chime in here because I have experience the other way. My '83 has a slightly modified 22R, I'd say maybe close in power to a stock RE. With you saying you "mostly drive around a small town and hunting . all pretty short distances, no long trips or freeways," I would recommend the 5.29's. It will help your engine to work less to get the same motivation from a stop, and as someone else has already said, you'll be ready to go to 35's someday. It's really not that bad if you do occasionally take a long trip. The rpm difference will be like 200-250 between 4.88 and 5.29. 231 rpm difference @ 65 mph according to www.grimmjeeper.com/gears.html with a G58(don't know if this is really what you have, but you could plug it in yourself on that site.

Another thing, to the comment about 4.88 being stronger...check this out and make your own conclusions, but Zuk knows his stuff, so I'll trust his opinion on this one.
http://gearinstalls.com/410suck.htm
Old 12-18-2011, 06:50 PM
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Nice bit. But less teeth in contact with the ring gear is the main point. Your asking one tooth to move you're truck instead of two or three.
Most the complaints could be from cheap gear sets and not the design, but the fact is they have a high failure rate. If they can't afford to test them, then we can afford to assume.
Old 12-18-2011, 07:04 PM
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