Originally posted by mlytle
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Subframe bushing removal
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That cart should be fine if the handle folds backwards too, but you'll probably want some way to get a jack under the assy, which may be difficult with that setup. Personally I just put a jack under the diff and let it down until it flops on one side. If you do that you should put some wood down on the floor, and be prepared for a little bending of the backing plates.
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I found that a jack was the best way for me to do it. If you're planning on replacing the brake backing plates (there's likely rust around the e-brake shoe retaining pins), you don't have to worry about bending them. You kind of have to estimate where on the diff to place the jack so the subframe doesn't fall off-- some wood is a good idea to help steady it. Make sure everything is disconnected before it drops! When you re-install using the jack it'll be easier. Off the car, you'll be able to play with positioning and get the whole thing set up nice and straight on the jack saddle for an easy install. Sent from my moto g(6) using Tapatalk(OO=[][]=OO) For Life
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Originally posted by E30andy View Post
I am planning this job in the spring. I like what you did here dropping the entire assembly onto a rolling cart. Any idea of the weight of the entire subframe assembly? This cart looks decent, rated for 660lbs.
https://www.northerntool.com/shop/to...8589_200748589
Last edited by mlytle; 01-18-2021, 06:53 PM.
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Originally posted by mlytle View Post
the cart was just for moving around and working on it. i have a lift, so used a tall trans jack to lower the subframe. subframe assembly probably weights 200lbs. when i didn't have a lift, just used a floor jack or short trans jack. have done a half dozen e30 rear subframe complete rehabs. three in the last year.
89 325ix coupe Diamondschwartz
1994 Mazda Miata
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Originally posted by E30andy View Post
Thinking about putting a lift in my garage prior to doing this job. What lift are you using?
if you are thinking about getting a lift....stop thinking. just do it. total game changer. you will wish you had done it sooner. installing a lift should be the first mod done to a car.
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Originally posted by mlytle View Post
I have two BendPak lifts. the two post in pic for the working area and a 4 post for car storage in the other bay. zero issues in 5 years. the two post is in use constantly for various maint, resto and race car work.
if you are thinking about getting a lift....stop thinking. just do it. total game changer. you will wish you had done it sooner. installing a lift should be the first mod done to a car.89 325ix coupe Diamondschwartz
1994 Mazda Miata
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Originally posted by E30andy View Post
Cool thanks! Looking at BendPak myself. Trying to figure out if my garage floor is thick enough for a lift. Gonna drill a hole in it this weekend.
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Originally posted by mlytle View Post
the cart was just for moving around and working on it. i have a lift, so used a tall trans jack to lower the subframe. subframe assembly probably weights 200lbs. when i didn't have a lift, just used a floor jack or short trans jack. have done a half dozen e30 rear subframe complete rehabs. three in the last year.
Lift is getting installed next week so just thinking through the best way to get the subframe out of and back in the car without having to li on my back!89 325ix coupe Diamondschwartz
1994 Mazda Miata
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Originally posted by mlytle View Post89 325ix coupe Diamondschwartz
1994 Mazda Miata
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If doing sub frame bushes in the car I gather just removing the diff bush bolt gives enough freedom?89 E30 325is Lachs Silber - currently M20B31, M20B33 in the works, stroked to the hilt...
new build thread http://www.r3vlimited.com/board/showthread.php?t=317505
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Originally posted by digger View PostIf doing sub frame bushes in the car I gather just removing the diff bush bolt gives enough freedom?sigpic
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Seems like more work to drop the whole subframe but in the end it will save you time. Better access for the bushing tools and safer to apply a little heat to help break the rubber free from its grip on the subframe.
Plus you can replace the soft brake lines and inspect the hard lines at the "T" much more easily.
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Originally posted by Vincenze View Post
Thread update: This method didn't work for me. All it did was lift up the car when I tried to jack up the subframe with a socket on top of the bushing. In the video, it doesn't show the bushing starting to move at the beginning of the jacking event. On my car, the bushing stayed in place in the subframe and the car just went up.
Oh well, time to try something else.
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