Question about 1994 GMC Sierra

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How to align a 94 gmc sierra

I want to know the easiest way to align my 94 gmc sierra, i replaced the pitman arm, idler arm, inner-outer balljoints. I was going to mark a line on cement and measure to both sides, is this the correct way?

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Inner and outer ball joints?? If you mean tie rod ends u will need to set the toe in. Mesure the distance across the back of the tires and then across the front. The differance is ur toe in. Best take it to a wheel align shop and have it done properly it will save you a lot on tires.

Posted on Jul 15, 2009


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I have a 1994 gmc sonoma with 150,000 miles that follows the contour of the road to much or wonders what can cause this,when I get an alignment they tell me everything is fine.

Your vehicle has the "old-style" front steering...inner & outer tie rods, center link, pitman and idler arms. Wandering is often caused by a worn idler arm. At 150000 miles it is not unusual for them to wear out. A GOOD mechanic will catch a worn idler during inspection when aligning the vehicle. Many techs are too lazy and don't bother.

Jan 13, 2015 | GMC Cars & Trucks

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How do I check the idler arm and pitman arm for good or bad before changing them?

It can be difficult to make the determination without someone helping you. The pitman arm comes off the steering box output shaft and is the first motion that is evident from steering input. To check play here, let vehicle remain on the ground to where the front tires touch and restrain any movement. Have assistant turn steering wheel back and forth while you note any movement between shaft and drag/center link connection. At the sane time slide over to passenger's side of drag/center link and note any movement between the fixed idler arm and its connection to the drag/center link. Some slight movement is allowable, but substantial movement requires replacement. A good step-by-step instruction for replacment can be found here:

Once safely on jack stands, have your assistant grasp the driver's side tire at 9 and 3 o'clock and make short quick movements in and out. Observe any movement. Closely inspect movement at the inner and outer tie rods as well as their connection to the drag link. 29c82074-af7b-4186-95b2-53eac0555ed7.gif

Replace any item that is excessively worn. Use a pickle fork or ball joint separator tool to dismantle and take measurements of length of worn out items in order to approximate re-installation of new part.
Check out this video for other hints:

Once you have replaced the worn parts you will still need to have a front-end alignment, but this will get you close. Good Luck!

Aug 17, 2014 | 1998 GMC Sierra

1 Answer

How to change front end on 94 gran marquis

Front end is a pretty vague description of what you are trying to do. There are - shocks -lower ball joints -upper ball joints -inner tie rod ends -outer tie rod ends -idler arm -pitman arm -center link -stabilizer links -stabilizer bars It is not likely that all of those need to be replaced at the same time?

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1 Answer

I need to replace inner and outer tie rods and Idler arms. Is there a diagram?

The inner and outer tie rods are pretty self explanatory remove the nut from the knuckle. Whack the knuckle a couple times where the tie rod goes through and the tie rod will pop out. The inner will releas the same way. Get the sleeve whe you get the inner and outer tie rod. It will make life a lot easier. Assemble the new parts to the approximate same length as the parts you removed and install. The idler arm will be bolted to the frame and then have a ball and socket that will be removed in the same manner as the tie rod end. The pitman arm will require a puller to seperate it from the gear box. Sometimes you have to heat up the end that attaches to the gear box to get them to pop. Sometimes the gear box needs to be removed in order to get the puller on the pitman arm. Lower and upper ball joints are also very common on these. If they have not been done I would have them checked as well.

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My 94 Silverado pulls very hard to the right, and is eating up my front left tire like nothing. what other than alignment can be going wrong?

You could have a bad tie rod end, Idler arm, pitman arm, wheel bearing or ball joint. All of these will normally cause a vibration also. Check by jacking the front end one side at a time and moving the tire back and forth on front and back and in and out on top and bottom. Either watch or have someone else watch the steering assembly for movement and where it is. If there is no unusual movement, it is more than likely an alignment problem or tire problem.

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Provided as to wether or not your model has a steering damper (if smo, may likely need replacing) and the ball joints check good, it may be likely that you have a worn steering gear. Many types are adjustable or rebuildable.

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1 Answer

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depends on what you have done, a person doing the work could do pitman arm, inner and outer tie rod ends, drag links, idler arm, ball joints and busshings for around $600.00

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