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MG MGA - Propshaft

I am trying to install the propshaft on my 1959 MGA Coupe (GD engine). I have attached the propshaft to the gearbox and can see that the driveshaft resting on the tunnel braces does not lineup exactly with the rear-end differential. The drive shaft u-joint is about 1/2" to 1" above the rear-end flange. Would it be o.k. to loosen the u-bolts and raise the plane of the rear-end so that it meets the propshaft u-joint or is there something else wrong. Just to note that the doors and fenders are off the car and I do not know if this extra weight would help bring things into alignment. Also, trans tunnel is installed to frame under floorboards.
R Northey

Is the vehicle weight sitting on the suspension, or is there support under the frame with suspension hanging? Grasp the differential input flange and shake vigorously up/down to see if the rear axle may be loose on the leaf springs. Loose U-bolts can cause the differential to hang low in front, as well as w*nking up/down while you drive it.
barneymg

Barney, I checked U-bolts as you suggested and all are tight. Could it be that the U-bolts not attached correctly or could it be something with the springs?
R Northey

If it's sitting on the ground or axle stands it may be that you tightened all the suspension bolts when the chassis was supported and the suspension hanging. Slacken the shackle bolts and the front eye bolts, the jack up the axle or have the car on it's wheels, with doors if possible, before you tighten up again.
Allan Reeling

Richard,
Allan is correct. You should have all of the weight of the car on the suspension before you tighten the bolts. You can loosen them and wait until you have the doors and fenders on the car to tighten them. You can tighten the u-bolts now though.

Jim
JL Cheatham

This thread was discussed between 22/03/2018 and 23/03/2018

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