glundblad Posted December 2, 2009 Share Posted December 2, 2009 When I take off from first gear, I feel as if I need to ride the clutch (and the gas pedal) a little more than what I remember from when the truck was new. It never slips when you drive down the road and it shifts flawlessly. Is there an adjustment I can make or is it the early signs that I need a new clutch? She has about 85k miles on her and we always took our foot off the clutch after we shifted. Link to comment Share on other sites More sharing options...
Wildman Posted December 2, 2009 Share Posted December 2, 2009 There is no real adjustment to the Hydraulic clutch system. You could bleed the slave cyl, and see if that helps any. Does the clutch act like it's "chattering" when you start off from a dead stop?? With even 85K, and 22 years on the OEM clutch.........Yea, it might be time for a new clutch :( If you do a lot of stop and go driving, that's hard on a clutch, if you have 185K on the clock, with a lot of highway mileage, that would equal about the same service life. With a lot of stop and go driving, the clutch disk can become "glazed" and that will act like it's slipping, also, the pressure plate can become weaken. Link to comment Share on other sites More sharing options...
Pete M Posted December 3, 2009 Share Posted December 3, 2009 what size tires? Link to comment Share on other sites More sharing options...
glundblad Posted December 3, 2009 Author Share Posted December 3, 2009 There is no chatter or slipping of any kind. It shifts great too. I just don't remember needing to ride the clutch as much in order to get it moving from a dead stop. The truck came with P225/75/15 tires. I replaced them with P235/75/15's. If my calculations are correct, it comes out to 28.3" verses 28.9". Not much of a size increase. Link to comment Share on other sites More sharing options...
Pete M Posted December 3, 2009 Share Posted December 3, 2009 It might be a combination of everything. the engine isn't making quite as much power, the tires are slightly bigger, the clutch is a bit worn. The reason I ask about the tires, I stepped up to 30s in my 4.0 '88 (back when it was 2wd) and noticed the same thing you're experiencing, just from the tire size increase. when the rear axle blew up, I swapped from 3.07s to 3.55s and it all went away and i was happy again. :D Link to comment Share on other sites More sharing options...
RLCollins Posted December 7, 2009 Share Posted December 7, 2009 Pete you say that you went from a 3.08 to a 3.55. was this a total rear end change like from a Diana 35 to a 44? Or just the gears:???: Link to comment Share on other sites More sharing options...
Pete M Posted December 7, 2009 Share Posted December 7, 2009 I would never EVER swap new gears into an existing Dana 35. That axle just isn't worth the money. Swapping in a new 35 with 3.55 gears would be much cheaper. Having said that, I always like to upgrade when something breaks (about a mile from wirk it started spitting out ring gear teeth), and I swapped in an MJ 44 that had 3.55 gears. :thumbsup: Link to comment Share on other sites More sharing options...
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