Can any of the TT guys tell me about the two different style rear spring perches? Is the pair with the collars on the end early, used concurrently, or replacement pieces for the standard looking pair?
The 8-5-28 parts book shows only the left one for 1918-1927 (same part #), so it replaced the right one. My 1924 TT project has the style on the right, so the change must have been after that.
My chassis is a 1925, to the best of my knowledge, and has the style on the left.
Last month I at auction got a 1927 frame and rear axle. It has the style on the left on it. By the looks I'd say it is a low mileage chassis. Maybe the ones on the RT are a "rebuilt" perch and sense the center carries most of the weight the collars are just there to take up movement for/aft?
As a side note it had the earlier 23" wheels on it.
My '18 TT has the style shown on the right. Interestingly, when I went through the old truck one of the things that needed attention was the rear suspension. On both sides the top leaf was missing and on the left side the bolt that should pass through all leafs only passed through the upper most and bottom leafs. All others were jammed down to the perch end.
Given the above information, my truck clearly had been tampered with. Who knows what was there originally? Not me, that's for sure.
Henry, those top leaves were missing because that's the one that's often cracked or broken. Not a surprise, given all the pictures we see of TT's hauling huge loads obviously much more than a ton.