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| | | | Joined: Feb 2000 Posts: 5,189 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,189 | I am changing shocks on my truck due to a engineering problem by me, they were to long and were hitting the internal stops.
How much travel is needed on the compression side and extension side of a modern tube type shock?
Heres what I have, setting on level pavement, there is 12.25" between the mounts. Will a shock with 9.25" compression to 14.125" extension be enough?
How much more compression do you need over extension?
Joe | | | | | Joined: Feb 2001 Posts: 4,095 'Bolter | | 'Bolter Joined: Feb 2001 Posts: 4,095 | if you have a stock height truck call your local flaps and they can give you extended, collapsed, and stroke. ron
Ron, The Computer Greek I love therefore I am.1954 3100 Chevy truckIn the Gallery 2017 Buick Encore See more pix1960 MGA Roadster Sold 7/18/2017
| | | | | Joined: Jul 2008 Posts: 1,262 Shop Shark | | Shop Shark Joined: Jul 2008 Posts: 1,262 | Here's what I did. Arm yourself with the following data: 1.0 Jack the truck up so the rear axle is hanging, then measure the length from the upper shock mounting bracket to the lower shock mount. 2.0 Now measure the distance from the bump stop to the frame. Subtract the bump stop dimension from the fully extended length. Make sure that the shock you pick, when fully collapsed, is less than this dimension, that way it will never fully collapse. Use these two measurements to pick the correct shock at your local parts store -or- Go to the Monroe website http://www.monroe.com/catalog/catalog_default.aspand use their step by step process to pick a shock and then got to this page http://www.monroe.com/catalog/miscApplications.asp and click on the link "Mounting and Length Sheets" which lists Monroe shock lengths. Check this against your actual dimensions.
Last edited by Hot Rod John; 10/11/2009 2:01 PM.
| | | | | Joined: Feb 2000 Posts: 5,189 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 5,189 | I have been all through the Monroe site and have a shock picked out. What I am not sure of is how much travel a front axle has during normal driving and how much it travels in each direction.
Most shocks have around 5" (+,-) of travel, so do you want most of that on the compression side or do you want to split it 1/2 and 1/2? 2/3 and 1/3?
Joe | | | | | Joined: Jan 2001 Posts: 1,419 ODSS President | | ODSS President Joined: Jan 2001 Posts: 1,419 |
~ Cosmo
1949 Chevy Half Ton
Rocinante, like Don Quixote, he is awkward, past his prime, and engaged in a task beyond his capacities.
"...my good horse Rocinante, mine eternal and inseparable companion in all my journeys and courses." ...Don Quixote, Cervantes
"If you come to a fork in the road, take it."...Yogi Berra
"Rudeness is the weak man's imitation of strength." ...Eric Hoffer
| | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | When the axle is at the snubber there should be a small amount of travel left. The Extension is used to limit the upward travel.
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | |
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