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rear sus. questions

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geraldlanc gerald lancaster
austin, USA   USA
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1967 MG MGB
I am ready to reinstall the rear axle/susp. in the 67 B. I have lost the two bolts that connect the forward end of the springs to the spring hanger. Is that something I can find at Home Depot? Also, since this is a one man operation, getting the assembly back in place is a problem. Can I jack up and install one end of the axle assembly at a time or do I have to jack up from the differential?
Gerald

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fast-MG.com Avatar
fast-MG.com Dave Headley
Cortez, 4 corners, Colorado, USA   USA
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They are 7/16" x ??. measure the mounting for length. I use NC even though OE was NF.

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billymgb1000 Avatar
billymgb1000 william gaulin
harrisville, harrisville RI, USA   USA
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1973 MG MGB
1974 MG MGB V8 Conversion "Sweet Thing"
Hey Gerald
my name is bill the way I do it is first take each spring and put the front bolts in each one then put the rear end on the jack and center it under the car and jack it up. go all the way up with it and then take each spring and bring them up to the rear shackle and put the bolts in. now you let the jack down and tighten everything up good luck brother

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Michael74MGB Avatar
Michael74MGB Michael Austin
Odessa, TX, USA   USA
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1974 MG MGB MkIII "Maggy"
Since you have to get new bolts anyway.... perhaps going back with stainless steel would be a good idea since it will help to alleviate rusting/seizing concerns in the future? In any event, do coat the bolts with anti-seize (the shafts especially) when you go back together.

On the assumption that you have the differential out of the car now, I'd go back with the diff sitting on two jackstands in approximate height - though some "adjustment" will likely be necessary - and get them seated on the springs correctly. Then jack from the center of the diff and get the back of each spring in position and stab then in place with a bolt. I did this myself solo and it wasn't too bad.



74 MGB: APT VP11 cam, lifters, valve springs; 9:1; ported head; TT exhaust; vernier timing gear; wizard aluminum radiator; dizzy by Jeff S.; stock HIF4's; it goes on and on.....

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rojor Avatar
rojor Bob Jorglewich
holbrook, long island, USA   USA
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1970 MG MGB
Gerald:
Good Info in the responces. I did mine last summer ,but never took the rear out.What I found very helpfull was a couple of bottle jacks . The u bolts were easier to hook up using the bottle jacks under the springs and also in hooking the rear springs to the hanger, you can use the jacks to flatten(lenthen) the spring and hook up was easier.
Bob Jorglewich

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knewham Keith N
Seattle, WA, USA   USA
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Please don't consider using stainless on critical suspension bolts for the OP. stainless are more brittle than their standard non stainless equivalents - there are number of discussions about this on the forums about fasteners. please stick the correct bolt for the application.

Cheers
Keith



In reply to # 2664431 by Michael74MGB Since you have to get new bolts anyway.... perhaps going back with stainless steel would be a good idea since it will help to alleviate rusting/seizing concerns in the future? In any event, do coat the bolts with anti-seize (the shafts especially) when you go back together.

On the assumption that you have the differential out of the car now, I'd go back with the diff sitting on two jackstands in approximate height - though some "adjustment" will likely be necessary - and get them seated on the springs correctly. Then jack from the center of the diff and get the back of each spring in position and stab then in place with a bolt. I did this myself solo and it wasn't too bad.

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RonnieMac Gold Member Ron McDonald
Rosthern, SK, Canada   CAN
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1952 MG TD
1971 MG MGB
The original is BH607241, 7/16" UNF X 3.00".



1952 MGTD 15539
1971 MGB GHN5UB237226


Attachments:
BH607241.JPG    3 KB
BH607241.JPG

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GTgeezer Avatar
GTgeezer Lynn Kirkpatrick
Columbia City, IN, USA   USA
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FYI, there are different grades (strengths) of the not SS bolts, grades 2, 5, & 8. the higher the number, they are stronger. You can tell by looking at the head.

The attached link shows better than I can describe. Use grade 5 or 8, and as mentioned, SS are not as strong.

http://www.boltdepot.com/fastener-information/materials-and-grades/bolt-grade-chart.aspx

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9146 Avatar
9146 rick dentel
yardley, PA, USA   USA
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Don't forget to use anti-seize.

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Donthuis Don van Riet
Rijswijk, ZH, Netherlands   NLD
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Never use stainless steel on items under heavy loads. With your 1967 B it may be that the bolts are the specific ones with a stepped profile, the only such ones in the whole car. In this case buying them elsewhere is definitely not possible. The same holds true for the tapered ones sad smiley

For my 1972 car I was told that I definitely needed the original bolts with their specific length and thread. Mine were not stepped but slightly tapered to fit tightly in the leaf spring bush. Old tapered ones are often a swine to get out, some grind them through at both sides, mine loosened when the grinding on the first side heated the bolt enough to free it smiling bouncing smiley



Edited 1 time(s). Last edit at 2014-04-18 04:18 AM by Donthuis.

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MGB567 Avatar
MGB567 Barrie Braxton
Ninderry, KabiKabi country, Queensland, Australia   AUS
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1966 MG MGB MkI "Money Guzzler"
1979 MG MGB GT V8 Conversion "Darkside"
Again but without any engineering background only common sense these are one of the bolts that I would (did) source from a MG supplier eg Leacy
I didn't even use ARP this time; if I had the opportunity to do so theirs are the only ss I would consider.



Mk1: CKD 11/66 first registered 8/5/67; owned since 3/77. 18GB +40 balanced. Peter Burgess BVFR head. Piper 285. 123. FidanzaFW. 4synch c/r box. Lots more as I did a nut and bolt rebuild; finished 2015. Tartan Red.

GT: December '78. VW Golf guards, flush fit front and rear valances. Torana XU1 vents, frenched indicators & Mk1 rear lights. 'Worked' Rover V8 with Monsoon ECU for EFI. GM4L60E, Lokar tiptronic & Quick4 controller. Vintage Air A/C. FC IFS. CCE 4 link rear. Salisbury with Quaife. Jaguar Storm.



Edited 1 time(s). Last edit at 2014-04-18 04:27 AM by MGB567.

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