jai_landrover
Well-Known Member
Parabolic a give it too much lift and s britpart prop shaft will not fit it runs out of length and the yokes will bind
jai_landrover
Well-Known Member
Yea but what happens when the axle drops it will bind up destroying itself. Need to let the axle hang and put weight on it to make sure the propshafts do not bind at full articulation. Compressed and drooping. A spacer may well work but you really need a longer prop with wider yokes or a decent std propshaft.
jai_landrover
Well-Known Member
I've had a propshaft spit out at me because they fitted para's and 2 inch longer shocks. And when on droop the propshaft hit the crossmember yanking it off and throwing it my way after clubbing the injection pump and loosening an injector pipe. These things need to be sorted change of springs or shocks means you need to test the suspension in its fullest extent before finding out issues that can render you stuck or broken when you least need it.
Right your prop problem is because your chassis is from a Straight 6 109
On a straight six the gearbox is further back than a 2 1/4 petrol
The front prop on a 109 six cylinder is longer than a 2 1/4 petrol
Question does the bulkhead fit ok? and does the gearbox cab panel fit correctly? If the gearstick is in the wrong place for your cover panel you def have a 109 six cylinder and will need to make a cover panel to fit, or cut off the engine cross member and gearbox crossmember and move it to where the 109 2 1/4 crossmember and gearbox crossmembers are located, which will then mean you can fit standard 109 2 1/4 props front and back
On a straight six the gearbox is further back than a 2 1/4 petrol
The front prop on a 109 six cylinder is longer than a 2 1/4 petrol
Question does the bulkhead fit ok? and does the gearbox cab panel fit correctly? If the gearstick is in the wrong place for your cover panel you def have a 109 six cylinder and will need to make a cover panel to fit, or cut off the engine cross member and gearbox crossmember and move it to where the 109 2 1/4 crossmember and gearbox crossmembers are located, which will then mean you can fit standard 109 2 1/4 props front and back
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It's a 76 SWB S3 soft top with a 2.25 petrol. I've pulled it apart to refurbish and it had std springs and I've not changed the front prop shaft. I've checked all the chassis sizes against the Haynes manual and it seems OK. At this stage I think either the new parabolics are sprung too high or the car just needs more weight on it.
Hey iaanb, did you ever come up with a reason/solution for your too short front prop shaft? I am doing a rebuild of a 64' IIA and have the same problem....rear shaft fits fine, have checked measurements for frame at front end, all original front end and prop shaft (except for new universal joint), I go to put it back together and come up 1cm short on the length of the shaft at full extension...weird. seems to me it should fit between the flanges with about 50% of the length still available for travel. I have the engine and gearbox in, but nothing else. Any light you could shed would be appreciated.
