I spoke with a major gear manufacturer today about the possibility of building new gear sets for our trucks (4:10 and 4:88 gears) for the rear and front diffs. Im sure these would be able to combine wit hhe true-track and proved much improved performance/reliability. This is not just a hype thing and these guys want to just see if people on the boards would be interested (i know the answer but need to post this anyway). I cannot disclose the gear maker but they are a very large company and easily has the ability to build these gear sets. Feel free to post comments here. Thanks...greg
New Gears For Titan??
PrerunnerGreg
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Pre-reflash Issues are definately there and one of them was a Consult2 fix only...the TCM code popped up and did not trigger an SES. Once that was cleared the tranny shifted fine. To go up in tire speed the ECU has problems obviously it handles slower rotations better.ptgarcia said:
Complete axle swap..rebuilt the whole axle 3.36, added difcover and trutrac. Loving it.
After reading what Greg has done I'd really like to see what happens after the 4.10 and 3.73's go in. Should be fine. Save enough money for a TruTrac and get them both at the same time.
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Hey RB... you swapped from the 2.94’s to 3.36 (from 3.73 to 4.10 equivalents on a 4 speed). From a street truck perspective do you think we could improve that performance any better with custom gears like a 3.55 ring and pinion? I imagine that going any lower than 3.55’s would be over kill for a "street" ride with near stock height tires…gas mileage would go down the tube and seems like we would be struggling at the end of the ¼ mile but would get up quick. Does that make sense? I read that Motors with a bunch of torque benift can from 3.73's where a high HP motor would be better off with 4.10's. You added the trutrac with your swap but, how much quicker do you honestly think the 3.36 are vs. 2.94? Does she seem to get to 60 quicker and not pull as hard after 80mph since the swap? There has to be a trade off. I noticed some sub 15 sec runs without 3.36. Just wondering how much it really helped overall performance and if it would be worth the trouble to most with the gas mileage trade off. I understand that you spent a lot of time and reserch on this, but an unbiased opinion would be killer man!
I special ordered in 98' a 5.2 Dakota std tranny back in the day with 4.10's rear...Off the line she was great but after 50 or 60 mph acceleration kinda felt sub par for a mid 15 sec truck. I later ended up putting in 3.92's and was much happier. She seemed to pull a pretty good the whole time with 3.92's vs pulling hard only at lower speeds with 4.10's. I just belive there is a such thing as to much gear thats why I was asking.
Thanks Dude,
I special ordered in 98' a 5.2 Dakota std tranny back in the day with 4.10's rear...Off the line she was great but after 50 or 60 mph acceleration kinda felt sub par for a mid 15 sec truck. I later ended up putting in 3.92's and was much happier. She seemed to pull a pretty good the whole time with 3.92's vs pulling hard only at lower speeds with 4.10's. I just belive there is a such thing as to much gear thats why I was asking.
Thanks Dude,
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I think the problem with the Titan "running out of steam" if you will near the end of the 1/4 is not due to gearing or engine limitations. Its got to be in the computer programming of the various systems. I can't remember, but can you hit peak rpm in 4th, or even 3rd, before the top speed limiter kicks in?markislive78 said:
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I change to 4th just before the finish line using 265/17's and the 3.36. The 2.94 was at 53-5500rpm at the end in 3rd?? Never hit the speed limitor yet. I think the steam is all out by 5500rpm in this truck.ptgarcia said:
Mark I gotta make some more power before I'm changing rear gears.
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Do what, u can make your Titan shift early at WOT by shifting manually...huh?RB's Titan said:
Where have I been?
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95 mph same as mine.. that i can recall, but the weird thing is i have the 2.94 gearing..
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Just checked my Cipher files and the previuos post is wrong. These are the exact RPMs as data logged: (3rd Gear)
15.1 NA run 2.94 with stock 18's 285/60 rpm 4500
15.1 NA run 3.36 with stock 18's 285/60 rpm 5238
14.5 N20 run 3.36 with stock 18's 285/60 rpm 4900
Toomany's truck logged the same 2.94 RPM 45-4650.
4th gear is hit on it's own right as I cross the line with the 17" wheel 29" tall tires tires only. That RPM I don't have cause that night was the first night I met Toomany and I used the shorter wheels.
15.1 NA run 2.94 with stock 18's 285/60 rpm 4500
15.1 NA run 3.36 with stock 18's 285/60 rpm 5238
14.5 N20 run 3.36 with stock 18's 285/60 rpm 4900
Toomany's truck logged the same 2.94 RPM 45-4650.
4th gear is hit on it's own right as I cross the line with the 17" wheel 29" tall tires tires only. That RPM I don't have cause that night was the first night I met Toomany and I used the shorter wheels.
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we need to do lots more testing rb i hate to put the wrong gear in, im already having hell with my truck cause i cant tune for the headers dont need another abomination 
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there's no doubt that we can do a lower gear it's just a compromise at the moment. anyway get back on task here.
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SIGN ME UP, I'd rather have some 3.55's tho, 4:10 is gonna be way to steep with stock tires and out tranny
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YES!!!!!! GEAR ME PLEASE!!!!!:bouncy:
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what's the proposed time for this greg?? sooner is better give us some info please
I think if you look at the numbers you'll see that the final drive ratio for a Titan w/ "Big Tow" or Offroad package is the same as a 4-spd equipped truck w/ 4.10 when driving in 1st gear!
When you're in fifth gear at 70mph you are turning fewer rpms (by far) than a 4-spd truck with a 4.10 ratio.
edit... my point was that we can afford to go a little shorter with the gearing (even if you already have BT or O/R because we actually have TALL gearing in fifth gear (when mileage really counts.)
When you're in fifth gear at 70mph you are turning fewer rpms (by far) than a 4-spd truck with a 4.10 ratio.
edit... my point was that we can afford to go a little shorter with the gearing (even if you already have BT or O/R because we actually have TALL gearing in fifth gear (when mileage really counts.)
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so let me get this straight. if you put in 3.73 in a titan it is like a 4.10 in a 4-speed. thanks guys
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