Top flange : Overhang on engine side to a 12.50 " overall header size A total of 14 holes, 9 drilled clearance for 5/16 " bolts and 5 tapped 5/16 " N.C. threads. Bottom flange : 11 holes, 6 drilled clearance for 5/16 " bolts and 5 tapped 5/16 " N.C. threads One bracket at top of frame with a 7/16 " diameter hole Two sleeves welded on gussets on engine side to accommodate cross bars Eight 5/16 " N.C. threaded holes on sides of rail, 5 on engine side and 3 on grille side Twelve 3/8 " threaded holes on flat side of rail Note: side frames are not interchangeable.

Twenty-five 5/16 " NC threaded holes in the built-in baffle 1.00 " diameter hose connection straight down from the baffle on the passenger side Two bolt-on type flanges with two 3/8 " NC threaded holes in each Two 1/2 " a 3/8 " and a 1/4 " NPT flange. The top front corners of the tank are cut lower, and there are two cut-outs across the top of the tank 1.25 " hole for a filler neck on the sloped cut-out on the passenger side Note : Bolt-on hose connection(s) and/or flat plate(s) available for this tank - must be requested.

Bolt-on type flange in the baffle with two 3/8 " NC threaded holes Two bolt-on type flanges with two 3/8 " NC threaded holes Two 1/2 " NPT fittings (on each end) One 5/8 " OD hose connection on passenger side 1.75 " hole on the top for a filler neck There is a flange on the front with two 3/8 " NC threaded holes.

One rectangular flange with four 3/8 " N.F. threads One 1/4 " N.P.T. fitting Two mounting brackets with 1/2 " N.C. threads at 8 " centres Two corners on header are cut on a slight angle

One rectangular flange with four 3/8 " N.F. threads One 1/4 " N.P.T. fitting Two mounting brackets with 1/2 " N.C. threads at 8.00 " centres Two corners on header are cut on a slight angle.

One 3.00 " O.D. hose connection out bottom of tank on approximately 30 degree angle One 1/4 " N.P.T. fitting Tank tapers from front to back ( 1.75 " deep to 1.25 " deep) One mounting bracket, 4.00 " high with two 1/2 " N.C. threaded nuts at 8.00 " centers.

One 2.75 " O.D. hose connection coming out of tank at an 80 degree angle and facing down on a 45 degree angle on passenger side. One 1/4 " N.P.T. fitting on bottom. Front side of tank slopes opposite the hose connection.

One 1.00 " O.D. hose connection on a 90 degree angle facing up and out to driver side One 2.00 " O.D. hose connection on approximately a 30 degree angle also facing slightly up and out to driver side One 1/4 " N.P.T. fitting

One 2.75 " O.D. pipe connection straight out on passenger side One 1/4 " N.P.T. fitting on driver side Tank tapers from 1.87 " deep on driver side to 3.75 " deep at the pipe connection on the passenger side

One 2.75 " O.D. pipe connection faces out and slightly down on passenger side One 1/4 " N.P.T. fitting on driver side Tank tapers from 1.87 " deep on driver side to 3.75 " deep at the pipe connection on the passenger side.

One 2.75 " O.D. pipe connection facing straight out on passenger side One 1/4 " N.P.T. fitting

One 3.50 " O.D. pipe connection facing straight out on passenger side One 1/2 " and 1/4 " N.P.T. fitting Two mounting studs with 1/2 " N.C. threads at 8.00 " centers.

One bolt-on flange with four 3/8 " threaded holes One 1/4 " N.P.T. fitting

This driver side tank has a 2.75 " diameter hose connection

This tank has a 2.75 " diameter hose connection The tank header tapers 1/2 " from the engine side to the grill side on the end with the hose connection only

GMC Bottom Tank

GMC Top Tank

2 bolt on flanges 2 - 5/16 " NC threaded nuts on each end of the tank 2 - 5/16 " NC threaded nuts along the fan side 4 - 7/16 " NC threaded bosses on top of tank for mounting purposes Bus & Motor Home

Top Tank : This tank has a 1.87 " diameter hose connection Bottom Tank : This tank has a 1.87 " diameter hose connection 1/4 " NPT flange for a drain cock Two holes @ 11.50 " centers for an oil cooler 1/2 " diameter connection at the end of the tank for an expansion tube 3/4 " diameter bypass hose coming out of the fan side of the tank Note: this tank is similar, but not identical to brass kit #GM 9805.

One 1.25 " O.D. hose connection on passenger side straight out One 1.00 " O.D. hose connection on driver side on a 90 degree angle facing towards center of tank Two 1/4 ' N.P.T. fittings One baffle in center of tank Two mounting nuts with 1/2 " N.C. threads at 8.00 " centers

This tank has a 3.00 " diameter hose connection 1.00 " bypass hose Two 1/2 " NPT flanges for sight glasses ect., 1/4 " NPT flange for a sensor A deairation fitting same as Ford style 1.37 " diameter hole for a fill neck

One end is 7.12 " wide with four 3/8 " diameter holes on each side The other end is 6.50 " wide, also with four 3/8 " diameter holes on each side (4 holes on each side to accommodate more than one model) Two 1/2 " NC mounting studs at 37.87 " centers One side of the frame has a bracket with six 5/16 " NC threaded holes. The other side of the frame also has six 5/16 " NC threaded holes plus a 5/16 " NC threaded stud in the center

This low flow top tank comes complete with check valve Twenty five 5/16 " NC threaded holes in the built in baffle 1.00 " diameter hose connection straight down from the baffle on passenger side Two 1/2 " NPT and one 1/8 " NPT flange facing the engine Bolt-on type flange on top of the tank to access the check valve The top front corners of the tank are cut lower and there are two rounded cut-outs across top of tank 1.25 " diameter hole for filler neck on top passenger side corner.

One pass low flow tank has one 1.25 " O.D. hose connection straight out from passenger side facing engine One 1/4 " N.P.T. fitting next to pipe One mounting bracket with two 1/2 " N.C. threaded nuts at 8.00 " centers.

This tank has a baffle that runs along the length of the tank down the middle 1.00 " and a 1.25 " diameter hose connection 1/4 " NPT flange near the 1.00 " hose connection Note: the 1.25 " diameter hose connection runs to the far side of the baffle.