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 Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: Kevin C]
#983193
02/03/10 03:42 AM
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Joined: Jan 2010
Posts: 15
OP
Need a Spot
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Thank you guys, never had such good attention in other sites
But well, this just sucks, seems likely i'll need to spend some money in a new tranny, or maybe it can be repaired/modified/something?.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: ricardus]
#983194
02/03/10 03:52 AM
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Joined: Feb 2009
Posts: 141
Wheeler
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I dont have actual numbers and cannot get them (trans is sitting on a bench at work pending a rebuild) But my 4th and 5th gear RPM's are VERY close. Hardly noticable at all, ever. My truck has 235ish thousand miles on it, but even 10 years ago with ~150k it was the same way when it was my brothers. If you have larger than stock tires, that puts extra strain on the clutch and may be causing it to slip in 5th gear just enough to negate the OD funtion of 5th gear. Just a thought.
'89 Raider V6 auto.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: off-roader]
#983195
02/03/10 04:25 AM
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Joined: Aug 2008
Posts: 1,186
Body Damage is Cool
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Can anyone with a 2.6 manual duplicate the 2500 rpm speed test and report back your results? i'm getting about about 55 on the speedometer with 31" tires, I get about 45-50mph at 2100rpm about 3200rpm at 70-75mph at 35mph i do about 1500-1750rpm clutch in at about 25mph or so all in 5th gear <img src="/forums/images/graemlins/confused.gif" alt="" />
'88 Raider, 33" Maxxis, 2" body lift, 10K winch
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: TrailRaider]
#983196
02/03/10 04:44 AM
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Joined: May 2000
Posts: 6,132
Trail Leader
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I don't have actual numbers and cannot get them (trans is sitting on a bench at work pending a rebuild) But my 4th and 5th gear RPM's are VERY close. Hardly noticeable at all, ever. My truck has 235ish thousand miles on it, but even 10 years ago with ~150k it was the same way when it was my brothers. If you have larger than stock tires, that puts extra strain on the clutch and may be causing it to slip in 5th gear just enough to negate the OD function of 5th gear. Just a thought. To make it easy.... Here are the gear ratios: 1st = 3.967 2nd = 2.136 3rd = 1.36 4th = 1 5th = 0.856 And... 3200 RPM = to 60 MPH Fourth gear 3200 RPM = 71 MPH in fifth Assuming 29" tires. Although tire size wont alter the speedeo to tach ratio unless you change the speedo gear in the tranny. Basically, 35's will get you the same reading. Kevin
87 Turbo Intercooled Raider, roller cam, torsen rear diff, LSD front diff, lockup auto with modified converter, V6 brakes, low transfer case gears...
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: Kevin C]
#983197
02/03/10 08:33 PM
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Joined: Jan 2010
Posts: 15
OP
Need a Spot
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With all the above information, this question could sound stupid due my unexperience, it is possible to give 5th gear a wider ratio ?
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: ricardus]
#983198
02/03/10 08:39 PM
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Joined: Sep 2001
Posts: 8,557
Forum Moderator
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4th and 5th are so close together that you can't tell a difference I am betting
87 Raider 4D56td v5MT1
31's..Basically Stock
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: LandRaider]
#983199
02/04/10 01:14 AM
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Joined: Jun 2003
Posts: 7,356
Trail Leader
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With my noisy, tin-can, no windows turbo SWB, there are definitely times when I reach down to pull it from 4th to 5th, only to find I am already in 5th.
Big Truck: 00, 3.5, Endeavor, 5-Spd drive line in hand! Little Truck: 87, 2.6T I/C, MT, LSDs, Tonneau Top Her Truck: 03, 3.8, 20th Anniv, 65k Daughter's: 06 Eclipse, Keeping it Mitsu! FSMs: MitsubishiLinks.com
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: MontyMcV]
#983200
02/04/10 01:58 AM
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Joined: Aug 2008
Posts: 1,186
Body Damage is Cool
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With my noisy, tin-can, no windows turbo SWB, there are definitely times when I reach down to pull it from 4th to 5th, only to find I am already in 5th. huh, I always push mine from 4th to 5th....
'88 Raider, 33" Maxxis, 2" body lift, 10K winch
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: 0778drz110]
#983201
02/04/10 02:26 AM
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Joined: Jun 2002
Posts: 6,211
Trail Leader
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I used to slide mine.
John B.
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Re: Raider 87 shifting to 5th gear doesn't change RPM
[Re: JohnnyBfromPeoria]
#983202
02/04/10 04:28 AM
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Joined: Jan 2001
Posts: 13,649
Web Wheeler
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What if a 4 speed got replaced for the 5spd, but with the 5spd shifter? The fork shifts nothing, so it stays in 4th...
Not responsible for advice not taken...
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