rear disc conversion - Toyota Nation Forum : Toyota Car and Truck Forums

cmarkr38is · 11-30-2011, 02:08 AM

Jest starting to day to do a rear disc conversion on a 1995 dx 4door corolla im going to use the rear disc off a 1988 gts 2 door. i no i have to cut the 4 control arms and weld the ends off the 1988 arm to my original arms for it to work all the other parts look like thay might bolt up including the emergince cable if inny body has done this conversion inny info is apperciated .ill try to post pictures later

Bitter · 11-30-2011, 07:32 AM

I don't think you're supposed to cut and weld anything, you'll never get a strong enough weld to hold up to harsh driving. My understanding was that you swap the knuckle and that it bolts into the 4 link rear suspension.

cmarkr38is · 11-30-2011, 10:26 AM

you dont no what you are talking about,I can tell that you have not welded befor!,,The hole car is welded part by part ! corollas have light wate rear end arms i can only make stronger,with good welds, The 1988 - 92 corolla gts rear disc has differint mounting ends on the 4 control arms. 2 on the right side of car and to on the left driver side.hears some pics http://corollacarclub.proboards.com/...#ixzz1M5o7lMwH

speedy25 · 11-30-2011, 12:04 PM

I'm with bitter. Welding suspension parts is NOT a good idea. That writeup was NOT very good. I THINK that they welded on of the u-shaped brackets together but in a strange way.

There is also no mention of using the disk-disk compensation valve. Add that to your list of things to do if you attempt it.

I am a welder but I would have make strenghthening brackets if I were to attempt what was in the pics.

-SP

Bitter · 11-30-2011, 07:42 PM

Nah, I've read of rear disc swaps which were bolt on but you needed the rear knuckles off a sprinter or carina I think. No cutting or welding, those arms are welded by machine which is calibrated for the proper penetration and strength. I just wouldn't trust even my own welding skills when it comes to safety critical suspension parts like that.

MirrorEyes · 11-30-2011, 07:48 PM

Quote:

Originally Posted by Bitter

Nah, I've read of rear disc swaps which were bolt on but you needed the rear knuckles off a sprinter or carina I think. No cutting or welding, those arms are welded by machine which is calibrated for the proper penetration and strength. I just wouldn't trust even my own welding skills when it comes to safety critical suspension parts like that.

This ^
I'm okay, for a 17 year old, with a welder. I'm not entirely sure if you have to cut the control arms, but then again I don't plan on doing disks in the back on mine, but if you are doing your cutting and welding, I pray you do a good job so you don't get hurt.

But good luck sir.

***Zembonez*** · 11-30-2011, 08:11 PM

Cutting and welding of suspension components is simply asking for trouble. I hope you never drive anywhere near where I am.

People might take you a bit more seriously if you didn't write everything in one long rambling sentence.

***Kiwi-Corolla*** · 11-30-2011, 09:05 PM

Just get some JDM AE101 rear discs and hubs sent from overseas. They are 100% bolt-on with no cutting/welding required. Sure, postage would be pricey due to the weight of them, but can you really put a price on the safety of yourself and other motorists?

firebirdv8350ci · 12-01-2011, 08:15 PM

I'm not beyond cutting and welding suspension parts but only for track use. Make sure a proffesional certified welder does it and prefferably one that works for a reputable race shop with very good understandingof suspension geometry, alignments, and materiial strength/ effects of welding pn such. Would mot recomend welding on OEM stuff. Pay a race shop to make you custom arms if you are hell bent on those particular rear disks and use correct proportioning vavle....Good luck with dot and safety inspections. Also if ylu ever get into serious wreck, you most likely will be at fault by default and insurance companies do not like tampered safety equipment by the way.

speedy25 · 12-01-2011, 11:57 PM

OP- Were not "picking" on you, we just dont want you to make the evening news in a way you didnt plan. Bitter and Kiwi Corolla put out a couple of MUCH better options. Follow up on that.

-SP