Bad Rumble in Drivetrain
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New User
Joined: Aug 2003
Posts: 17
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From: Jersey
Bad Rumble in Drivetrain
Ok....I just bought an '88 Ranger Ext. Cab 4x4 and this drivetrain problem is driving me nuts!!! It has touch drive/5-speed manual trans./auto hubs I'd like to change over to manual everything. Anyway, when it's driven, there is a rumble...I mean like heavy rumble coming from what sounds like everywhere. It's not a whine like a trans. or T-case problem, it's sounds like maybe a driveshaft issue or a diff. It does this no matter what speed I drive it at and it does it coasting in neutral. It's not the clutch either...it engages smooth and there is no chatter and it's not warped. The guy told me it goes threw U-joint every two years. I'm thinking bent driveshaft. Dunno...can any of you guys give me a place to start I know your thinking...why did you buy this truck. Well the guy sold it for $2000 with a perfect body, no rust, interior mint and 180K. I have an '86 Std. cab with a 302 and c-4 trans. already built but the body is falling apart...I can put my foot through the floor board and all most Flintstone it. I put a plate there so I can drive it and not get my feet wet
Please Help!!!
Please Help!!!
New User
Joined: Jul 2003
Posts: 14
Likes: 0
From: calif. high desert
Bad Rumble in Drivetrain
Check the following web site...It offers good info to troubleshoot your problem...
http://www.autosite.com/garage/encyclop/ency16d.asp
Let me know if it is any help, as there are others.
pb
http://www.autosite.com/garage/encyclop/ency16d.asp
Let me know if it is any help, as there are others.
pb
New User
Joined: Aug 2003
Posts: 3
Likes: 0
From: Baltimore, Md
Bad Rumble in Drivetrain
I have a 1990 4x4 Ext. Cab Ranger(160,000 miles) with auto hubs which had a rumble and sounded like I had really noisy snow tires. I would check the U joints first as mine has been that route as well as an imbalanced drive shaft with the previous owner. I put the rear up on jack stands, blocked the front tires and had a truly trusted intelligent friend (previous owner of it) get behind the wheel and put it in forward(auto tranny) 2WD. The rear bumper was vibrating and that noise was there. It would show up at 15 MPH and came from the rear diff. I dropped the drive shaft and turned the pinion flange by hand and found it had rough spots. The problem ended up being a bad outer/forward pinion race. The bearing looked good but the race had a bad spot in it. I caught it early on. The diff fluid was clean & at the proper level. I and my truly trusted intelligent friend replaced the bearing/race assy and it is quiet again. I hope the diagnoses turns out to be a U joint.
http://www.corral.net/tech/drivetrain/gears.html
http://www.corral.net/tech/drivetrain/gears.html
