Welcome to Convertible Service Online. Convertible tops, top parts, repair, and top installation.

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For pricing or to place an order: Visit our Online Store or call us toll free at (800) 333-1140

Outside the Continental U.S., call us at (626) 285-2255


 
 
 
 
 
 
 
 

 

 
 
 
 

TOP LIFT CYLINDERS

 

CONVERTIBLE SERVICE MANUFACTURES OVER 100 DIFFERENT SIZES AND STYLES OF HYDRAULIC TOP CYLINDERS TO FIT MOST ALL MAKES AND MODELS !

All our convertible top lift cylinders are manufactured to meet or exceed your original cylinders in construction, function and appearance. They are manufactured with all metal construction and triple chrome plated steel rods, to the proper specifications for your year, make and model convertible. They are design tested at double your normal operating pressure. We believe that the extra time we have spent in the design and manufacture of these cylinders has resulted in the finest quality cylinders on the market today and the best value for your money. All of our top lift cylinders are made in the USA and carry a 5 Year Warranty.

For pricing or to place an order, visit our Online Store or call us toll free at (800) 333-1140.


UPPER PIVOT TOP LIFT CYLINDERS

During the early 60ís all of The Big Three car makers switched to a cylinder design with the pivot point at the  top of the cylinder case, allowing the lower part of the cylinder to rotate fore and aft as the top traveled (a design which is still employed today). From 1970 on, these cylinders were constructed partly of plastic, Making it a nonrebuildable, throwaway part. Convertible Service employs the all metal construction design of the 60ís and manufactures upper pivot lift cylinders to fit all convertibles from the 60ís right up to the present time GM, Ford, Chrysler, AMC and even Saab, Toyota, Renault & Infiniti M30 convertibles! On other reproduction top cylinders, the cylinder case is made by crimping two pieces of aluminum together. At Convertible Service the cylinders are manufactured according to the original design by forming an all metal, one piece case. This process eliminates the possibility of leaks from the lower part of the cylinder (which is a common problem with the crimped-together type). The result is Ö. A more reliable cylinder. On other reproduction top pivot cylinders the ports which receive the hydraulic hoses from the pump/motor are made by screwing in pre-fab external brass fittings which protrude as much as ĺís of an inch further than the originals and create clearance problems when you try to mount them in the car. Our cylinder castings are formed with the port built into the castings. They fit right into the car, just like the originals did!


LOWER PIVOT TOP LIFT CYLINDERS

 

From the late 40’s to the early 60’s, top cylinders had their pivot point at the bottom of the cylinder case. Convertible Service has designed cylinders to fit the many different configurations of lower castings, port sizes, stroke dimensions and rod ends (threaded end orforged eyelet) for the different years and models. We take great pride in manufacturing quality top cylinders which will fit your convertible just like the originals!

 

 

 

 

Convertible Service manufactures convertible top lift cylinders assemblies for most American cars including:

GENERAL MOTORS CARS (GM)

CAMARO, CORVETTE, CAVALIER

MID SIZE CARS

BUICK:  GRAN SPORT, SKYLARK, SPECIAL
CHEVROLET:  CHEVELLE, MALIBU
OLDSMOBILE:  CUTLASS, F-85, 442
PONTIAC:  BEAUMONT, GTO, LEMANS, TEMPEST

FULL SIZE CARS:

BUICK:  CENTURION, ELECTRA 225, INVICTA, LE SABRE, WILDCAT
CADILLAC:  ALL MODELS
CHEVROLET:  BEL AIR, CAPRICE, IMPALA
OLDS:  DELMONT 88, DELTA 88, DYNAMIC 88, JETSTAR, STARFIRE, 98
PONTIAC:  BONNEVILLE, CATALINA, GRAND VILLE, PARISIENNE (CANADIAN)

Ford-Lincoln-Mercury

MUSTANG, COUGAR

MID SIZE CARS
 

FORD:  FAIRLANE, FALCON, TORINO
MERCURY: CALIENTE, COMET, CYCLONE, MONTEGO
 

FULL SIZE CARS:

FORD: GALAXIE(500)(CUSTOM),  LTD
MERCURY: MONTEREY, MARQUIS, PARKLANE

CHRYSLER - DODGE - PLYMOUTH

Barracuda, Belvedere, Challenger, Coronet (Super Bee), Cuda, Dart, Fury, GTX, Imperial, Polara, Roadrunner, Satellite, Signet, Valiant

Year span: 1947, 1984, 1949, 1950, 1951, 1952, 1953, 1954, 1955, 1956, 1956, 1957, 1958, 1959, 1960, 1961, 1962, 1963, 1964, 1965, 1966, 1967, 1968, 1969, 1970, 1972, 1972, 1973, 1982, 1983, 1984, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995



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REPLACE BOTH TOP CYLINDERS!


Based on ours years of experience and response from our customers, we recommend replacing both cylinders over just replacing the one thatís obviously bad.

1. A common reason for replacing a cylinder is that it is leaking fluid. If only one new cylinder is installed, the remaining old cylinder, being suddenly required to operate in a tight, leak-free system under factory pressure, will frequently begin to leak, too.

2. Teaming a new cylinder with an old one can also cause unequal lifting force applied to the left and right sides of the folding top frame, which could, in time, distort the folding frame or cause the pivot points to wear unevenly.

3. Some older factory top cylinders were designed with a longer stroke than necessary, so that same cylinder would fit in several different size cars. If the operator leaves his finger on the top switch after the top is all the way up, the hydraulic system is pushing against a dead stop, which can cause the cylinder rods to bend permanently. For these models, Convertible Service has designed shorter cylinders which will push the top all the way up, but no further. Naturally, it is not a good idea to match new correct size cylinder with and old one that is too long.

Convertible Service will gladly sell you as many or as few top cylinders as you want. But for the above reasons, we recommend that cylinders be replaced in pairs

 


 
We carry a complete line of new and used Convertible top mechanism parts

 


 
Click here to see some of our custom project cars!