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The Terminator
Suspension Modifications
Removing rear IRS springs, can it be done without dropping IRS or compressor?
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<blockquote data-quote="postban" data-source="post: 2689666" data-attributes="member: 3706"><p><a href="http://www.motorcityterminators.org/forum/forum_posts.asp?TID=66&PN=1&TPN=1" target="_blank"><img src="http://www.motorcityterminators.org/album/upload/Scratchy/pill-r.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a></p><p><span style="color: Red">(Just don't do the part that lowers the front)</span></p><p><strong><span style="font-size: 18px">Step by step IRS drop instructions:</span></strong></p><p></p><p>1)Get car up on 4 jackstands witht ther tires about 8-10" off the ground in the rear and 4-6" in the front. A little angle is important to keep the trans from leaking when you pull out the driveshaft.</p><p>2)Remove catback. Soap or spray lube on the hangers ease insertion/removal.</p><p>3)Remove Driveshaft. Pull it out of the trans.</p><p>4)Remove tires.</p><p>5)Remove shocks, disconnect from top and bottom.</p><p>6)Remove ABS sensors from differential and pull/pry the fasteners off the IRS subframe. Get it completely off the IRS. They detach under the rear seats. You can pull up through the floor if you pull the big rubber grommet up.</p><p>7)Remove Emergency brake cables. There are little c-clips mounting them to the calipers. DO NOT remove the spring, way harder to get it back together. Just push on the little arm holding the cable end till you can work it out. I use vice grips to compress it. Make sure e-brake is off, of course. Also have a helper pull all the slack to the side you are working on.</p><p>8)Remove brake calipers, two bolts. Put jack underneath bottom of spindle, just support it. Mark the position of the eccentric washer where the UCA mounts to the top of the spindle. Remove upper spindle/UCA bolt. Pull back on top of spindle and slip the brake line out fromo under the UCA. Remove brake line bracket which mounts to UCA. Replace the upper spindle bolt.</p><p>9)Remove rear IRS subframe bolts. Support IRS at the center of the main rear beam, directly rear of the pinion mount bracket (back of the diff). Take both bolts out once it is supported. Use some 4x4's or jackstands to support it a few inches under its normal position (you don't want to lower it to ground till the front is loose.) You just want to lower it enough so the springs will come out.</p><p>10)With the rear supported on 4x4's or jackstands, put the jack under the front differential brace. Remove the front IRS subframe bolts. Lower the front down. It may stick, both the ones I have done needed a few smacks with a mallet. Once loose lower to the 4x4's then reposition the jack, lift a bit, remove 4x4's and lower to ground or pull out from under the car on top of the jack.</p><p>11)Reinstall in reverse order. Be sure to get it up close again on 4x4's, too much angle and the front bushings will not go in. Remember to swap out the stock 12mm front IRS bolts for the new 14mm bolts from MM or your dealer.</p><p></p><p>IRS TORQUE SPECS</p><p>Subframe-to-body bolts 76 lb-ft</p><p>Subframe-to-rear bracket bolts 76 lb-ft</p><p>Subframe rear bracket-to-body bolts 59 lb-ft</p><p>Shock absorber-to-lower arm and bushing bolts 98 lb-ft</p><p>Shock absorber-to-body nuts 30 lb-ft</p><p>Upper arm and bushing-to-subframe nuts 66 lb-ft</p><p>Upper arm bushing-to-knuckle nut 66 lb-ft</p><p>Lower arm and bushing-to-subframe bolts 184 lb-ft</p><p>Lower arm and bushing-to-knuckle nut 85 lb-ft</p><p>Toe link-to-subframe nut 35 lb-ft</p><p>Toe link-to-knuckle nut 35 lb-ft</p><p>Stabilizer bar bracket bolt 41 lb-ft</p><p>Stabilizer bar link nuts 35 lb-ft</p><p>Rear axle diff rear insulator-to-axle housing bolts 76 lb-ft</p><p>Rear brake disc dust sheild-to-knuckle bolts 89 lb-in</p><p>Brake line-to-rear brake caliper bolt 30 lb-ft</p><p>Parking brake cable bracket-to-lower arm bushing bolt 11 lb-ft</p><p>ABS sensor bolt 17 lb-ft</p><p>Axle shaft-to-hub retainer 240 lb-ft</p><p>Driveshaft to pinion flange 83 lb-ft</p><p>Wheel nuts 95 lb-ft</p></blockquote><p></p>
[QUOTE="postban, post: 2689666, member: 3706"] [url=http://www.motorcityterminators.org/forum/forum_posts.asp?TID=66&PN=1&TPN=1][img]http://www.motorcityterminators.org/album/upload/Scratchy/pill-r.jpg[/img][/url] [COLOR=Red](Just don't do the part that lowers the front)[/COLOR] [B][SIZE=5]Step by step IRS drop instructions:[/SIZE][/B] 1)Get car up on 4 jackstands witht ther tires about 8-10" off the ground in the rear and 4-6" in the front. A little angle is important to keep the trans from leaking when you pull out the driveshaft. 2)Remove catback. Soap or spray lube on the hangers ease insertion/removal. 3)Remove Driveshaft. Pull it out of the trans. 4)Remove tires. 5)Remove shocks, disconnect from top and bottom. 6)Remove ABS sensors from differential and pull/pry the fasteners off the IRS subframe. Get it completely off the IRS. They detach under the rear seats. You can pull up through the floor if you pull the big rubber grommet up. 7)Remove Emergency brake cables. There are little c-clips mounting them to the calipers. DO NOT remove the spring, way harder to get it back together. Just push on the little arm holding the cable end till you can work it out. I use vice grips to compress it. Make sure e-brake is off, of course. Also have a helper pull all the slack to the side you are working on. 8)Remove brake calipers, two bolts. Put jack underneath bottom of spindle, just support it. Mark the position of the eccentric washer where the UCA mounts to the top of the spindle. Remove upper spindle/UCA bolt. Pull back on top of spindle and slip the brake line out fromo under the UCA. Remove brake line bracket which mounts to UCA. Replace the upper spindle bolt. 9)Remove rear IRS subframe bolts. Support IRS at the center of the main rear beam, directly rear of the pinion mount bracket (back of the diff). Take both bolts out once it is supported. Use some 4x4's or jackstands to support it a few inches under its normal position (you don't want to lower it to ground till the front is loose.) You just want to lower it enough so the springs will come out. 10)With the rear supported on 4x4's or jackstands, put the jack under the front differential brace. Remove the front IRS subframe bolts. Lower the front down. It may stick, both the ones I have done needed a few smacks with a mallet. Once loose lower to the 4x4's then reposition the jack, lift a bit, remove 4x4's and lower to ground or pull out from under the car on top of the jack. 11)Reinstall in reverse order. Be sure to get it up close again on 4x4's, too much angle and the front bushings will not go in. Remember to swap out the stock 12mm front IRS bolts for the new 14mm bolts from MM or your dealer. IRS TORQUE SPECS Subframe-to-body bolts 76 lb-ft Subframe-to-rear bracket bolts 76 lb-ft Subframe rear bracket-to-body bolts 59 lb-ft Shock absorber-to-lower arm and bushing bolts 98 lb-ft Shock absorber-to-body nuts 30 lb-ft Upper arm and bushing-to-subframe nuts 66 lb-ft Upper arm bushing-to-knuckle nut 66 lb-ft Lower arm and bushing-to-subframe bolts 184 lb-ft Lower arm and bushing-to-knuckle nut 85 lb-ft Toe link-to-subframe nut 35 lb-ft Toe link-to-knuckle nut 35 lb-ft Stabilizer bar bracket bolt 41 lb-ft Stabilizer bar link nuts 35 lb-ft Rear axle diff rear insulator-to-axle housing bolts 76 lb-ft Rear brake disc dust sheild-to-knuckle bolts 89 lb-in Brake line-to-rear brake caliper bolt 30 lb-ft Parking brake cable bracket-to-lower arm bushing bolt 11 lb-ft ABS sensor bolt 17 lb-ft Axle shaft-to-hub retainer 240 lb-ft Driveshaft to pinion flange 83 lb-ft Wheel nuts 95 lb-ft [/QUOTE]
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Suspension Modifications
Removing rear IRS springs, can it be done without dropping IRS or compressor?
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