Raven9 Posted yesterday at 07:10 PM Share Posted yesterday at 07:10 PM Hey guys, 1978 RS600L /vin# RS686LST38380. Having trouble finding shocks. Fleetpride gave me a monroe# 66886 but they are a tick long with the plastic retainer on them. its a dump truck, and trying to square this away before I do the trans swap. Still deciding between a 9LL and 13. 502 rears. also looks like someone has removed the rear shock brackets on this truck and I did not due my due diligence when I bought it as everything was painted the same color under the bed so i just glazed over, looked for frame cracks but is double framed, never even thought about not having shocks, i know im an idiot lol. any help with the shocks is greatly appreciated! Thank you! Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/ Share on other sites More sharing options...
67RModel Posted yesterday at 07:42 PM Share Posted yesterday at 07:42 PM Call local Mack dealer and give them your VIN. They should still have info for a 1978. Or call Watts Mack, the owner of this website. They have all the dirt on the old stuff. There is a Mack dealer parts guy on here a lot that always seems to come up with something. @The Heinz Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575774 Share on other sites More sharing options...
Raven9 Posted yesterday at 07:53 PM Author Share Posted yesterday at 07:53 PM Called Mack, they couldn’t come up with anything. Called Watts this morning as well, their working on it but nothing yet. Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575776 Share on other sites More sharing options...
The Heinz Posted yesterday at 08:20 PM Share Posted yesterday at 08:20 PM Old number 14QK2107, new number 85105666 which is available for order. They look like they're a Monroe 66891. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575779 Share on other sites More sharing options...
Raven9 Posted yesterday at 08:37 PM Author Share Posted yesterday at 08:37 PM Great, thank you! 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575783 Share on other sites More sharing options...
Raven9 Posted yesterday at 09:34 PM Author Share Posted yesterday at 09:34 PM I’ve googled the Monroe, do you know if their front or rear? Or all the same? This is my first Mack so it’s been a lil frustrating on parts, I apologize for all the questions Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575789 Share on other sites More sharing options...
The Heinz Posted 9 hours ago Share Posted 9 hours ago Number I gave was for the rears, let me grab the front ones real quick. Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575835 Share on other sites More sharing options...
kscarbel2 Posted 8 hours ago Share Posted 8 hours ago 20 hours ago, The Heinz said: Old number 14QK2107, new number 85105666 which is available for order. They look like they're a Monroe 66891. Had to rewrite this......it's been a long time. 14QK2107 is for a Mack eastern R, NOT for an RS. 14QK2107P1 is for SS34 with square u-bolts. 14QK2107P2 is for SS34 with semi-round u-bolts. 1 Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575836 Share on other sites More sharing options...
The Heinz Posted 4 hours ago Share Posted 4 hours ago 43 minutes ago, kscarbel2 said: 14QK2107 is for a Mack eastern R, NOT for an RS. 14QK2107P1 is for an old multi-leaf R. 14QK2107P2 is for a parabolic taperleaf R with 10.5k (2QK3378) or 12k (2QK3378P2) springs. The first two numbers supersede to the same 85105666 number, last supersedes to 25625091. Quote Link to comment https://www.bigmacktrucks.com/topic/75523-1978-rs600l-shock-part-numbers/#findComment-575858 Share on other sites More sharing options...
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