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martinjflint_2327

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  1. right finally rejoined, now i can annoy folk on here instead of facebook again! 1971 gt6 mk2 rotoflex with rover V8 and 5 speed box - weak link is the diff. trying to avoid putting the subaru one in that is sat on garage shelf. So as some of you know I ejected the rear of my diff out the back of the car a while ago, got a temporary diff and now finally took that out to begin (some kind) of rebuild. Both are now stripped on the bench leaving just the pinion in each. What I have: - my 'original' 3.89 ratio GT6 six bolt housed diff with front large castle nut - so I have a solid spacer. - It has large carrier bearings and a very nice tight but smooth differential in it with copper shims - the rear housing as said was shattered by a pinion tooth wedging under crown wheel - so I have another 6 bolt tail I will use. - My pinion has lost one of its baby teeth but the CW looks okay. - This diff WAS nice and quiet. The temporary diff - is the holy grail 3.63 but with a spitfire front bracket, 4 bolt rear case, and a shallower nylock front nut - so it should be a collapse spacer. - it has smaller carrier bearings and the differential is sloppy with approx 0.8mm of play moving a single gear in/out - The crown wheel has a bit of burring at the edge of the troughs of about 7 teeth and a scored line on the edge of the wheel (not the teeth) of the same number of teeth. - This diff whines on load of acceleration or deceleration. Any advice at this point is appreciated. I cant afford to get the diff sorted by someone brilliant so as neither owes me anything I wish to try myself to make a tough (as possible diff with what I have. This is what I think i should do: 1. use my GT6 front housing 2. use my spare 6 bolt rear case (tapped for a drain plug) 3. use the 3.63 CWP matched set (even thought potentially still noisy) 4. use my solid spacer (doing all the difficult pre-load and shimming i know will need doing) **** Can you use a solid spacer on a pinion that uses a collapse spacer?? **** 5. Use my gt6 carrier with the larger bearings 6. replace all seals and bearings. Questions: 1. will the solid spacer go on the pinion off the other diff? (solid is a stronger) 2. are the output shafts stronger on the gt6 diff? (the shafts look the same but the spitty one has sealed bearings) 3. I'd read that the later (TR7 4 speed) carriers were stronger, but are they stronger than my gt6 one? Thank you everyone :-)
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